Home
Publications
Research
People
Student Opportunity

Dr. Laodong Guo

Professor
School of Freshwater Sciences (SFS)
University of Wisconsin-Milwaukee (UWM)
600 East Greenfield Avenue
Milwaukee, WI 53204, USA

Tel:     (414)-382-1700
Fax:    (414)-382-1705
E-mail: guol@uwm.edu

 

Personal Webpage

 





Xiamen Univ

Education

Ph.D.

1995.

Oceanography, Texas A&M University, College Station, TX 77843, USA

Professional Experience

2012-present

Professor

School of Freshwater Sciences, University of Wisconsin-Milwaukee (UWM), Milwaukee, WI 53204

2005-2011

Associate and Full Professor

Department of Marine Science, University of Southern Mississippi, Stennis Space Center, MS 39529

2002-2005

Research Associate Professor

International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK 99775

2001-2005

Affiliate Associate Professor

Institute of Marine Science, School of Fisheries and Ocean Sciences, University of Alaska Fairbanks, AK 99775

2000-2002

Research Assistant Professor

Japan Frontier Research System for Global Research, International Arctic Research Center (IARC), University of Alaska, Fairbanks, AK 99775

1997-2000

Associate and Assistant Research Scientist

Laboratory for Oceanographic and Environmental Research (LOER), Texas A&M University, Galveston, TX 77551, USA

1995-1997

Postdoctoral Research Associate

Laboratory for Oceanographic and Environmental Research (LOER), Texas A&M University, Galveston, TX 77551

1990-1995

Research and Teaching Assistant

Department of Oceanography, Texas A&M University, College Station, TX 77843

Research Interests

• Biogeochemical cycling of carbon, nutrients and trace elements in aquatic systems

• Role of colloids and biopolymers in the scavenging of radionuclides and trace elements in the ocean

• Physicochemical processes at the land-ocean, particle-water, and biota-water interfaces

• Biogeochemical consequences of climate and environmental change.

Teaching Experience

·        MAR 402, Marine Environmental Science (3 credit hours, Undergraduate)

·        MAR 541, Marine Chemistry (3 credit hours, Graduate)

·        MAR 651, Marine Organic Geochemistry (3 credit hours, Graduate)

·        MAR 683, Isotope Biogeochemistry (3 credit hours, Graduate)

·        MAR 684/689, Special Tiopic: Proposal Writing (2 credit hours)

·        MAR 682/683, Sp. Topics: Aquatic Colloids and Nanoparticles (2 credit hour)

 

Research Grants

Current Research Grants:

  • National Science Foundation (NSF)-Major Research Instrument (MRI) program (NSF-MRI #1126420): MRI: Acquisition of a flow field-flow fractionation system to enhance colloidal research and education, $161,910 with additional 30% matching funds from the university, funding period: January 2012-December 2013, (Principal Investigator with Co-PIs: Drs. Orcutt and Shiller).
  • Gulf of Mexico Research Initiatives (GoMRI/BP): Evaluating the changes in fluorescence EEMs and size spectra of crude oil and dispersant during their degradation in marine environments. $59,000; March 2011 – February 2012.
  • Gulf of Mexico Research Initiatives (GoMRI/BP): Continuation of “Chemical effects associated with leaking Macondo well oil in the Northern Gulf of Mexico”, $113,457, March 2011 – February 2012 (Co-PI with Alan Shiller)
  • Northern Gulf Institute/NOAA (NGI), Ocean Acidification and Carbon System Properties, $401,342.00, July 2010-September 2012 (Co-PI with Lohrenz and Others).
  • National Science Foundation (NSF-OCE#1042907): RAPID: Responses of Benthic Communities and Sedimentary Dynamics to Hydrocarbon Exposure in Coastal Ecosystems of the northern Gulf of Mexico. $139,999, June 2020-May 2011 (Co-PI with Biggs, Brunner and Yeager).
  • National Science Foundation, RAPID: Effect of oil spill on organic carbon partitioning and transformation in the water column in the northern Gulf. (NSF-OCE #1042790), 06/01/2010-05/31/2011.
  • MS Department of Marine Resources/DOI,“Aquatic Habitats in the Mississippi Coastal Zone:What is the state of health of the Bay of St Louis? CIAP Project# MS.R-742, $250,000, 2010-2014 (Co-PI with Drs. Don Redalje and Stephan Howden).
  • National Science Foundation-Ocean Science Program,“Examining the Binding of Radionuclides with Marine Biopolymers, A Comparative Study on Th, Pa, Be, Po and Pb Isotopes”, NSF-OCE#0850957, $333,888, 09/01/2009-08/31/2012.
  •  

Recent Research Grants:

  • National Science Foundation (NSF-MRI#1057726), MRI-RAPID: Acquisition of Spectroscopic Instrumentation for Oil Spill Research, S108,871, 8/1/2010-7/30/2011, (Co-PI with Alan Shiller).
  • Gulf of Mexico Research Initiatives (GRI/BP): A comprehensive assessment of oil distribution, transport, fate and impacts on ecosystems and the Deepwater Horizon oil release. $425,355, 6/1/2010-3/31/2010 (Co-PI with Steve Lohrenz and Others).
  • Northern Gulf Institute/NOAA, “Monitoring and Assessment of Coastal and Marine Ecosystems in the Northern Gulf”, 10/1/2009-8/31/2011, $324,700/year (Co-PI with Dr. Stephan Howden and others).
  • Northern Gulf Institute/NOAA, “Spatial variation and temporal trend of water quality in the northern Gulf of Mexico”, 10/1/2009-8/31/2011, $150,000 (Co-PI with Dr. Zhongping Lee).
  • Composition and flux of organic carbon species from the Yukon River Basin, NSF-EAR, Integrated Carbon Cycle Research Program, $397,285, Sept. 2004-Aug. 2009.
  • Collaborative research: Th(IV) and Pa(IV,V) binding to exopolymeric acid polysaccharides in marine environments, NSF-OCE, $199,997 (Guo’s portion), 04/15/2004-03/30/2009.
  • Collaborative Research: Flux and transformation of organic carbon across the eroding coastline of northern Alaska, NSF-OPP, $740.930 (with Dr. Ping and others), March, 2005-Feb 2009.
  • "Role of natural organic matter in governing the bioavailability of potentially toxic metals to estuarine bivalves". NOAA-Sea Grant Program, 03/01/2001-02/28/2004, $241,859, with Drs. Santschi & Ray.
  • "Marine natural colloids: their influences on metal bioavailability to aquatic organisms", Hong Kong Research Grant Council, June 2001- July 2004, HK$1,024,000,  Co-PI with Dr. W.-X. Wang..
  • Climate Geochemistry, Japan JAMSTEC / IARC, 04/01/2004-03/31/2006.
  • Climate Geochemistry, Japan JAMSTEC / IARC, 04/01/2001-03/31/2004.
  • "Actinide (239, 240Pu & 241Am) migration studies at the Rocky Flats Environmental Technology Site: importance of colloidal organic matter". Kaiser-Hill/U.S. DOE, 10/1/1999-9/30/2000, $120,000, with Dr. Santschi, 1 month/year. 
  • "The interaction of Th(IV) isotopes with organic compound classes of marine organic matter", National Science Foundation, NSF-OCE, 9/1/1999-8/31/2003, $427,063, with Dr. Santschi. 
  • "Bioavailability of colloid-associated metals to estuarine bivalves using radiotracers and ultrafiltration techniques", NOAA-Sea Grant Program, 1998-2001, $240,000, with Drs. Santschi & Ray. 

 

Declined proposals

  • Fate and transport of soil organic carbon derived from Arctic permafrost in a changing climate, submitted to NSF-OPP, 2007-2009,
  • "Radiocarbon and molecular characterization of major organic compound classes of dissolved organic matter in the ocean", National Science Foundation, 2001-2003, with Co-PI Dr. Xuchen Wang,  (average rating: Very Good).
  • "Iron complexation with marine organic matter and its bioavailability to phytoplankton"  National Science Foundation, 2004, PIs: Laodong Guo and Wen-Xiong Wang (with 4 excellent reviews).

Professional Memberships

Honor/Awards

 

Professional Activities

Panelist for funding agencies and organizations

·     U.S. National Science Foundation (NSF)

·     National Aeronautics and Space Administration (NASA)

·     Polar Research Board/National Academies, Designing an Arctic Observing Network.

 

Proposal reviewer for funding agencies

·     U.S. National Science Foundation (Divisions of OCE, OPP, EAR, DEB, MRI)

·     National Aeronautics and Space Administration (NASA)

·     U.S. Petroleum Research Fund

·     Swiss National Science Foundation, Switzerland

·     Swedish Research Council, Sweden

·     Natural Environment Research Council (UK)

·     Research Council for Earth & Life Sciences in the Netherlands

·     National Science Council of Taiwan

·     China Ministry of Education

Manuscript reviewer for scientific journals (over 50 SCI journals)

Acta Oceanol. Sinica

Analytical Chemistry

Analytican and Bioanalytical Chemistry

Arctic, Antarctic & Alpine Research (AAAR)

Biogeochemistry

Biogeosciences (BG)

Chemical Geology

Chemosphere

Chinese Journal of Oceanology and Limnology

Chinese Science Bulletin

Continental Shelf Resarch

Deep-Sea Research I

Deep-Sea Research II

Earth & Planetary Science Letters (EPSL)

Environmental Chemistry

Environmental International

Environmental Pollution

Environmental Science and Pollution Research (ESPR)

Environ. Sci. & Technol. (ES&T)

Environmental Toxicology and Chemistry (ET&C)

Estuarine Coastal and Shelf Science (ECSS)

Estuaries and Coasts

Forensic Science International

Frontiers of Environmental Science & Engineering in China

Geophysical Research Letters (GRL)

Geochimica et Cosmochimica Acta (GCA)

Global Biogeochemical Cycles (GBC)

International Journal of Earth Sciences

Journal of Environ Monitoring

Journal of Hazardous Materials

Journal of Experimental Marine Biology and Ecology

Limnology and Oceanography (L&O)

L&O-Methods

Marine Biology

Marine Chemistry

Marine Ecology Progress Series (MEPS)

Marine Environmental Research

Marine Geology

Marine Pollution Bulletin

Nature

Nature-Geoscience

Oceanologia

Organic Geochemistry

Polar Biology

Progress in Oceanography

PNAS

Reviews of Geophysics

Science (AAAS)

Science in China

Science of the Total Environment

Talanta

Terr. Atmos. Ocean. Sci. (TAO)

Water, Air & Soil Pollution

Water Environ. Res.

Other Experience

Workshop and Editorship

  • Co-Guest Editor for Deep-Sea Research II, A special issue on “Biogeochemical studies from the Chinese Arctic Research Expeditions (CHINARE) and other international cruises, 2009-2012.
  • Invited workshop participant: North American Carbon Program Coastal Synthesis workshop, December 11-12, 2010, San Francisco, CA.
  • Invited participant, GEOTRACES Arctic Workshop, September 29-October 1, 2010, Washington DC.
  • Invited participate, PAG synthesis Workshop on Arctic Marine Carbon Cycle, June 29-July 1, 2009, Xiamen, China.
  • Co-organizer for Arctic Carbon Cycle Assessment Workshop supported by Arctic Monitoring and Assessment Program (AMAP), CliC, and the International Arctic Science Committee (IASC), Feb 26-March 1, 2007, Seattle.
  • Invited participant,  IUPAC workshop: International Workshop on Aquatic Colloids, September 2004, Birmingham, UK.
  • Invited participant, NSF-sponsored US GEOTRACERS Planning Workshop, May 2004, L-DEO/Columbia  University;
  • Invited participant, NSF-sponsored Workshop Future Applications of Th-234 in Aquatic Ecosystems , August 2004, WHOI;
  • Invited participant, NSF-sponsored workshops:  RiOMar Workshop, November 2001, Tulane University.
  • Invited participant,  NOAA Ocean Exploration Initiative Workshop, July 2001, Washington DC;

 

Field experimence

• Co-chief scientist, NSF supported R/V Seward Johnson cruise (April/May 2006)

• Chief scientist, NSF supported R/V Gyre cruises (May 2001)

• Chief scientist, NSF supported R/V Gyre cruises (July 2000)

• Chief scientist, NSF supported R/V Pelican cruises (March 1998)

• Chief scientist, NSF supported R/V Pelican cruises (Aug 1997)

• Chief scientist, NSF supported R/V Pelican cruises (April 1997)

• Participant in over 25 scientific expeditions to the Arctic Ocean, the North Pacific, North Atlantic, Bering Sea, the Gulf of Mexico, and the South China Sea

• Coordinator and participant in field sampling campaigns to the Yukon River Basin, Mackenzie River Basin, Mississippi River, Galveston Bay, the Bay of Saint Louis, Mississippi Bight, and other Alaska and Gulf coast rivers

 

Others

  • Nature Reader Panel: 2008-2010
  • Thomson Reuters Customer Panel: 2007-present.
  • Seminar Chair: 2006-2007, Department of Marine Science/USM.
  • Participant in "International dissolved organic carbon methods comparison" organized by J. H. Sharp (University of Delaware): 1993-1996 
  • Participant in the "intercomparison study of cross-flow filtration techniques", organized by Ken Buesseler (WHOI): 1994-1995.
  • Seminar convener at IARC Multi-Disciplinary Group/UAF, 2000-2003.
  • Environmental consulting: 1996-1999 

Invited Talks

  • Isotopic composition and export fluxes of organic carbon species from the Lower Mississippi River”. Invited presentation at the 2010 AGU Fall Meeting, San Francisco, CA, December 13-17, 2010.
  • Biogeochemical cycling of carbon and nutrients in aquatic environments and its response to climate and environmental changes, School of Freshwater Science, University of Wisconsin-Milwaukee, September 13, 2010.
  • Composition and fluxes of carbon and nutrients from rivers to the northern Gulf of Mexico”, invited speaker at the 2010 IAPCES annual meeting on “International Symposium on the Frontiers of the Earth Sciences”, Hangzhou, China, July 1-2, 2010
  • Variations and behavior of phosphorus and dissolved organic matter during estuarine mixing in the Bay of St Louis in the northern Gulf of Mexico”, National Sun Yat-Sen University, Kaohsiung, Taiwan, June 28, 2010
  • Mobilization and fluxes of permafrost organic carbon across the Arctic land-ocean interface in a changing climate”, invited seminar in the Institut des sciences de la mer/ Université du Québec à Rimouski, Rimouski, Quebec, May 21, 2010.
  • Dynamics of carbon and nutrients in the Mississippi River and Pearl River in the northern Gulf of Mexico. Seminar at the USM Department of Marine Science, November 6, 2009.
  • Role of colloidal organic matter in controlling the fate and transport of radionuclides in aquatic environments. Nuclear Chemistry Summer School, DOE Brookhaven National Laboratory, July 15, 2008, and July 6, 2009.
  • Dynamics of organic carbon and nutrients at the Arctic land/ocean interface in a changing climate. Gulf Coastal Research Lab, Ocean Spring, MS, March 29, 2007
  • Uncertainties of Carbon fluxes across the arctic land/ocean interface, Invited presentation at NOAA’s Arctic Carbon Cycle Assessment Workshop supported by Arctic Monitoring and Assessment Program, Feb 26-March 1, 2007, Seattle, WA.
  • Climate change and transport of terrestrial organic carbon across the Arctic land/ocean interface. University of Georgia, Athens, GA, February 19, 2007
  • Release of old soil organic carbon into Arctic Ocean through rivers in a changing climate. AGU 2006 Western Pacific Geophysics Meeting, Beijing, July 24-27, 2006
  • Aquatic colloids and their relation to carbon cycle and climate/environmental change, School of Geography, Earth and Environmental Sciences, University of Birmingham, UK, November 17, 2005.
  • IARC Research relevant to the Yukon River Basin, USGS Workshop to develop a plan to study “Terrestrial and Freshwater Interactions with Changing Climate in The Yukon River Basin”, US Geological Survey, August 29-31, 2005, Fairbanks, AK.
  • Sources and fluxes of organic matter and nutrients across the Arctic land/ocean interface: Implications for climate/environmental change. The University of Southern Mississippi, March 31, 2005.
  • Ultrafiltration technique and its applications to sampling environmental colloids, International Workshop on Aquatic Colloids, sponsored by IUPAC,  Birmingham, UK, September 24, 2004.
  • Speciation and fluxes of nutrients (N, P, Si) in the Yukon River: implications for hydrological and permafrost dynamics, Water and Environmental Research Center, UAF, February 13, 2004.
  • Composition and reactivity of marine organic matter, Ocean Research Institute/University of Tokyo, January 14, 2004.
  • Biogeochemical cycling of natural organic matter in aquatic environments: a multiple tracer approach,  Louisiana State University, School of Coast and Environment, November, 2003.
  • Macromolecular organic matter in the ocean, Naval Research Laboratory, Ocean Science Division, July 2003.
  • Marine organic matter and thorium scavenging in the ocean, USGS, Coastal & Marine Geology Program, August 2002
  • Controls of POC/234Th and 231Pa/230Th ratios by particulate chemical composition in the ocean, Xiamen University, Department of Oceanography, China, June 2002.
  • Applications of analytical techniques to environmental and marine sciences, Department of Chemistry, University of Science and Technology,  Hong Kong, January 28, 2001.
  • Are thorium isotopes a reliable tracer for the cycling of marine organic matter, National Center for Ocean Research, Taiwan, August 21, 2000. 
  • Marine biogeochemistry of macromolecular organic matter. International Arctic Research Center, University of Alaska Fairbanks, May18, 2000 
  • Colloidal organic matter in marine environments: source, composition, and bioavailability. ASLO 2000 Aquatic Science Meeting, Copenhagen, Denmark, June 5-9, 2000 
  • Biogeochemistry of natural organic matter in marine environments. University of Pennsylvania, Department of Earth & Environmental Science, February 28, 2000. 
  • Role of colloids in the mobility of radionuclides in aquatic systems. 1999 AGU Fall Meeting, San Francisco, CA, December, 1999.
  • Cycling of colloidal and dissolved organic matter and their role in aquatic environments. Department of Biology and Chemistry, City University of Hong Kong, September, 1999. 
  • Interaction of thorium isotopes with colloidal organic matter in oceanic environments. Department of Oceanography, Xiamen University, December, 1998. 
  • High turnover rates of marine organic matter revealed by carbon and thorium isotopes. Atlantic Oceanographic and Meteorological Laboratory, National Oceanographic and Atmospheric Administration, Miami, FL, May 1998 
  • Cycling of dissolved organic carbon in marine environments. University of Connecticut, Department of Marine Sciences, Groton, CT, March 1998 

Publications

A: Book Chapters

1.            Guo, L. and M.-Y. Sun. 2009. Isotope composition of organic matter in seawater. In: "Practical Guidelines for the Analysis of Seawater", O. Wurl, editor, Chapter 6, p97-123, CRC Press-Taylor and Francis Group, LLC.

2.            Guo, L. and Santschi, P.H. 2007. Ultrafiltration and its applications to sampling and characterization of aquatic colloids. In "Environmental Colloids and Particles," Wilkinson, K. and Lead, J. (Eds), Chapter 4, p159-221, International Union of Pure and Applied Chemistry (IUPAC) Series on Analytical and Physical Chemistry of Environmental Systems, John Wiley.

3.            Santschi, P. H., Guo, L., Means, J. C., and Ravichandran, M. 1999. Natural organic matter binding of trace metals and trace organic contaminants in estuaries. In: T. S. Bianchi et al. (Editors), “Biogeochemistry of Gulf of Mexico estuaries”, Wiley, New York, pp.347-380.

4.            Guo, L., Santschi, P. H. and Bianchi, T. S., 1999. Dissolved organic matter in estuaries of the Gulf of Mexico. In: T. S. Bianchi et al. (Editors), “Biogeochemistry of Gulf of Mexico estuaries”, Wiley, New York, pp. 269-299.

 

B: Peer-reviewed Publications -- Total citations: >2,500 based on ISI web of knowledge; H-index = 31 as defined by Ball (2005, Nature). (* with students),

 

Year 2012 and in press

115) Chen, M., Ma, Q., Guo, L., Qiu, Y., Li, Y., and Yang, W. 2012. Importance of lateral transport on 210Pb budget in the eastern Chukchi Sea. Deep-Sea Res. II, (accepted after revision).

114) Zhang, R., Chen, M., Guo, L., Ma, Q., Gao, Z., Cao, J.P., Qiu, Y., and Li, Y. 2012. Variations in the isotopic composition of particulate organic carbon and their relation with carbon dynamics in the western Arctic Ocean. Deep-Sea Res. II, (in press), doi:10.1016/j.dsr2.2011.05.005.

113) Stolpe, B., Guo, L., Shiller, A.M. and Aiken, G.R. 2012. Organic and iron-rich colloids in Alaskan rivers: 1. Variations in colloid size, characteristics and binding of trace elements. Geochim. Cosmochim. Acta (revised).

112) Stolpe, B., Guo, L. and Shiller, A.M. 2012. Organic and iron-rich colloids in Alaskan rivers: 2. Rare earth elements. Geochim. Cosmochim. Acta, (accepted).

111) Cai, Y., Guo, L., Wang, X., Mojzis, A. K. and Redalje, D. 2012. The source and distribution of dissolved and particulate organic matter in the Bay of St Louis in the northern Gulf of Mexico. Estuarine, Coastal and Shelf Science, 96, 96-104, doi: 10.1016/j.ecss.2011.10.017.

110) Shiller, A.M., Shim, M.J., Guo, L., Bianchi, T.S., Smith, R. Duan, S. 2012. Hurricane Katrina impact on water quality in the east Pearl River, Mississippi. Journal of Hydrology, 414/415: 388-392, doi: 10.1016/j.jhydrol.2011.11.010.

109) Guo, L., Cai, Y., Belzile, C. and Macdonald, R. 2012. Sources and export fluxes of inorganic and organic carbon and nutrient species from the seasonally ice-covered Yukon River. Biogeochemistry, 107:187-206, doi:10.1007/s10533-010-9545-z.

 

Year 2011

108) Ping, C.-L., G.J. Michaelson, L. Guo, M.T. Jorgenson, M. Kanevskiy, Y. Shur, F. Dou and J. Liang. 2011. Soil carbon and material flux across the eroding coastline of the Beaufort Sea, Alaska. JGR-Biogeosciences, 116, G02004, doi:10.129/2010JG001588.

107) Douglas, T.A., Fortier, D., Shur, Y.L., Kanevskiy, M.Z., Guo, L., Cai, Y. and Bray, M.T. 2011. Geomorphic and geochemical characteristics of thermokarst cave ice in the CRREL Permafrost Tunnel, Alaska. Permafrost and Periglacial Processes, 21(4), DOI: 10.1002/ppp.709.

106) Xu, C., Santschi, P. H., Hung, C.-C.,  Zhang, S., Schwehr, K,A., Roberts, K.A., Guo, L., Gong, G.-C., Quigg, A., Long, R., Pinckney, J., Duan, S.W., Amon, R., and Wei, C.L. 2011. Controls of Th-234 removal from the oligotrophic ocean by polyuronic acids and microbial activity. Marine Chemistry, 123, 111-126, doi:10.1016/j.marchem.2010.10.005.

 

Year 2010

105) Diercks, A.R., R.C. Highsmith, V.L. Asper, D.J. Joung, Z. Zhou, L. Guo, A.M. Shiller, S.B. Joye, A.P. Teske, N. Guinasso, T. L. Wade & S.E. Lohrenz. 2010. Characterization of subsurface polycyclic aromatic hydrocarbon at the Deepwater Horizon site. Geophysical Research Letters, 37, L20602, 6 PP, doi:10.129/2010GL045046

104) Zhu, L., Guo, L., Gao, Z., Yin, G., Lee, B. and Wang, F. 2010. Source and distribution of lead in the surface sediments from the South China Sea as derived from Pb isotopes. Marine Pollution Bulletin, 60, 2144-2153, doi:10.1016/j.marpolbul.2010.07.026

103) Hung, C.-C., Xu, C., Santschi, P. H., Zhang, S., Schwehr, K.A., Quigg, A., Guo, L., Gong, G.-C., Pinckney, J., Long, R. and Wei, C.-L. 2010. Comparative evaluation of sediment-trap and 234Th-derived POC fluxes from the upper oligotrophic waters in the Gulf of Mexico and the subtropical northwestern Pacific Ocean. Marine Chemistry, 121, 132-144, doi:10.1016/j.marchem.2010.03.011.

102) *Wang, X., Cai, Y. and Guo, L. 2010. Preferential removal of dissolved carbohydrates during estuarine mixing in the Bay of St Louis, Mississippi. Marine Chemistry, 119, 130-138,, doi:10.1016/j.marchem.2010.01.006.

101) Zhang, J.-Z., Guo, L. and C.R. Fischer. 2010. Abundance and Chemical Speciation of Phosphorus in Sediments of the Mackenzie Delta, Chukchi Sea and Bering Sea. Aquatic Geochemistry, 16: 353-371, doi:10.1007/s10498-009-9081-4.

100) Stolpe, B., Guo, L. Shiller, A. and Hassellov, M. 2010. Size and composition of colloidal organic matter and trace elements in the Mississippi River, Pearl River and the northern Gulf of Mexico as characterized by flow field-flow fractionation. Marine Chemistry, 118: 119-129, doi:10.1016/j.marchem.2009.11.007.

99) Dou, F., Yu, X., Ping, C.L., Michaelson, G., Guo, L. and Jorgenson, M. T. 2010. Spatial variation of tundra soil organic carbon along the coastline of northern Alaska. Geoderma, 154, 328-335, doi:10.1016/j.geoderma.2009.10.020.

 

Year 2009

98) Cooke, M.P., van Dongen, B. E., Talbot, H.M., Semiletov, I., Guo, L. and Gustafsson, O. 2009. Bacteriohopanepolyol biomarker composition of organic matter exported to the Arctic Ocean by seven of the major Arctic rivers. Organic Geochemistry, 40(11): 1151-1159. doi:10.1016/j.orggeochem.2009.07.014, (abstract).

97) *Guo, L., White, D.M., Xu, C. and Santschi, P.H. 2009. Chemical and isotopic composition of HMW-DOM from the Mississippi River plume. Marine Chemistry, 114, 63-71.

96) McGuire, A.D., Anderson, L., Christensen, T.R., Dallimore, S., Guo, L.D., Hayes, D., Heimann, M., Macdonald, R. and Roulet, N. 2009. Sensitivity of the Carbon Cycle in the Arctic to Climate Change (Review). Ecological Monographs, 79(4), 79(4), 523-555, (Abstract or pdf).

95) Cai, Y. and Guo, L. 2009. Abundance and variation of colloidal organic phosphorus in riverine, estuarine and coastal waters in the northern Gulf of Mexico. Limnology and Oceanography 54(4), 1393-1402.

94) *Xu, C.H., Guo, L., Ping, C.-L. and White, D. M. 2009. Chemical and isotopic characterization of size-fractionated organic matter from cryoturbated soils, Northern Alaska. JGR-Biogeosciences, 114, G03002, doi:10.1029/2008JG000846.

93) *Xu, C.H., Guo, L., Dou, F..and Ping, C.-L. 2009. Potential DOC production from size fractionated Arctic tundra soils, Alaska. Cold Regions Science and Technology, 55, 141-150, doi:10.1016/j.coldregions.2008.08.001.

 

Year 2008:

92) Cai, Y., Guo, L., Douglas, T. and Whitledge, T. 2008. Seasonal variations in nutrient concentrations and speciation in the Chena River, Alaska. JGR-Biogeosciences, 113, G030035, doi:10.1029/2008JG000733.

91) Dou, F., Ping, C.-L., Guo, L. and Jorgenson, M.T. 2008. Estimating the impact of seawater on the production of soil water-extractable organic carbon during coastal erosion. Journal of Environmental Quality, 37(6), 2368-2374, doi:10.2134/jeq2007.0403.

90) Cai, Y., Guo, L.D. and Douglas, T. 2008. Temporary variations in organic carbon species and fluxes from the Chena River, Alaska. Limnology and Oceanography, 53(4): 1408-1419 (pdf).

89) Elmquist, M., Semiletov, I., Guo, L.D. and Gustafsson, O. 2008. Pan-Arctic patterns in black carbon sources and fluvial discharges deduced from radiocarbon and PAH source apportionment markers in estuarine surface sediments. Global Biogeochemical Cycles, 22, GB2018, doi:10.1029/2007GB002994.

88) Zou, L., Guo, L.D., Sun, B.W. and Sun, M.Y. 2008, Origins of high-molecular-weight dissolved organic matter in the Middle Atlantic Bight: Clue from lipids and molecular d13C ratio. The Open Oceanography Journal, 2, 1-5.

87) Hung, C.-C., Moran, S. B., Cochran, J. K., Guo, L. and Santschi. P.H. 2008. Comment on: How accurate are 234Th measurements in seawater based on the MnO2-impregnated cartridge technique? by Pinghe Cai et al.” Geochemistry Geophysics Geosystems, 9, Q02009, doi10.1029/2007GC001770.

 

Year 2007

86) Guo, L.D., Warnken, K.W. and Santschi, P.H. 2007. Retention behavior of dissolved uranium during ultrafiltration, implications for colloidal U in surface waters. Marine Chemistry, 107(2), 156-166.

85) Guo, L.D., Ping, C.L., Macdonald, R.W. 2007. Mobilization pathways of organic carbon from permafrost to arctic rivers in a changing climate. Geophys. Res. Lett. 34(13), L13603, doi10.1029/2007GL030689.

84) Gueguen, C., Guo, L. Yamamoto-Kawai, M. and Tanaka, N. 2007. Colored dissolved organic matter dynamics across the shelf/basin interfaces in the western Arctic Ocean. J. Geophys. Res.-Ocean., 112(C05), C05038, doi10.1029/2006JC003584.

 

Year 2006 :

83) *Wang, D., Henrichs, S.M. and Guo, L. 2006. Distributions of nutrients, dissolved organic carbon and carbohydrates in the western Arctic Ocean. Continental Shelf Res., 26 (14), 1654-1667.

82) Zou, L., Sun, M.-Y. and Guo, L. 2006. Temporal variations of organic carbon inputs into the upper Yukon River: Evidence from fatty acids and their stable carbon isotopic composition in dissolved, colloidal and particulate phases. Organic Geochemistry, 37(8), 944-956.

81) Guo, L., and Macdonald, R.W. 2006. Source and transport of terrigenous organic matter in the upper Yukon River: evidence from isotope (13C, 14C and 15N) composition of dissolved, colloidal and particulate phases.Global Biogeochemical Cycles, 20, GB2011, doi: 10.1029/2005GB002593.

80) Santschi, P.H., Murray, J.W., Baskaran, M.,Benitez-Nelson, C., Guo, L.D., Hung, C.-C., Lamborg, C., Moran, B., Passow, U., and Roy-Barman, M. 2006. Thorium speciation in seawater. Marine Chemistry, 100, 250-268.

79) Buesseler, K. O., Benitez-Nelson, C., Moran, S. B., Burd, A., Charette, M., Cochran, J. K., Coppola, L., Fisher, N., Fowler, S. W., Gardner, W., Guo, L. D., Gustafsson, O., Lamborg, C., Masque, P., Miquel, J. C. , Passow, U., Santschi, P.H., Savoye, N., Stewart, G., and Trull, T.. 2006. An assessment of particulate organic carbon to thorium-234 ratios in the ocean and their impact on the application of 234Th as a POC flux proxy. Marine Chemistry, 100, 213-233.

78) Chen, M., Guo, L., Ma, Q., Qiu, Y.S., Zhang, R., Lv, E., and Huang, Y.P. 2006. Zonal patterns of d13C, d15N and 210Po in the North Pacific Ocean. Geophys. Res. Lett., 33(4), L04609, doi: 10.1029/2005GL025186.

77) *Gueguen, C., Guo, L., Wang, D. Tanaka, N, and Hung, C.-C. 2006. Chemical characteristics and origin of dissolved organic matter in the Yukon River. Biogeochemistry, 77, 139-155.

76) Belzile, C. and Guo, L. 2006. Optical properties of low molecular weight and colloidal organic matter: Application of the ultrafiltration permeation model to DOM absorption and fluorescence. Marine Chemistry, 98, 183-196.

 

Year 2005

75) Gueguen, C., Guo, L. and Tanaka, N. 2005. Distributions and characteristics of colored dissolved organic matter in the western Arctic Ocean. Continental Shelf Res., 25(10), 1195-1207.

 

Year 2004:

74) *Guo, L., Tanaka, T. Wang, D., Tanaka, N. and Murata, A. 2004. Distributions, speciation and stable isotope composition of organic matter in the southeastern Bering Sea. Marine Chemistry, 91: 211-226.

73) Chen, M., Wang, W.-X. and Guo, L. 2004. Phase partitioning and solubility of iron in natural seawater controlled by dissolved organic matter. Global Biogeochemical Cycles, 18(4): GB4013, doi: 10.1029/2003GB002160.

72) Hung, C.C., Guo, L., Roberts, K.A. and Santschi, P.H. 2004. Upper ocean carbon fluxes determined by the 234Th approach and sediment traps using size fractionated POC and 234Th data from the Gulf of Mexico. Geochemical Journal, 18(6): 601-611.

71) Tanaka, T, Guo, L. Deal, C., Tanaka, N., Whitledge, T., and Murata, A. 2004. Nitrogen deficiency in a well oxygenated cold bottom water over the Bering Sea Shelf: Influence of sedimentary denitrification. Continental Shelf Res., 24:1271-1283.

70) Guo, L., Zhang, J.-Z., Gueguen, C. 2004. Speciation and fluxes of nutrients (N, P, Si) from the upper Yukon River. Global Biogeochemical Cycles, 18(1), GB1038, doi: 10.1029/2003GB2152.

69) Guo, L. Semiletov, I, Gustafsson, O., Ingri, J. Andersson, P. Dudarev, O. White, D. 2004. Characterization of Siberian Arctic estuarine sediments: Implications for terrestrial organic carbon export. Global Biogeochemical Cycles, 18(1), GB1036, doi: 10.1029/2003GB002087.

 

Year 2003:

68) Guo, L., Tanaka, N., Schell, D. M. and Santschi, P.H. 2003. Nitrogen and carbon isotopic composition of high-molecular-weight dissolved organic matter in marine environments. Mar. Ecol. Prog. Ser. 252: 51-60.

67) Hung, C.C., Guo, L., Schultz, G., Pinckney, J.L. and Santschi, P.H. 2003. Production and flux of carbohydrate species in the Gulf of Mexico. Global Biogeochemical Cycles, 17(2), 1055, doi: 10.1029/2002GB001988.

66) Chen, M., Dei, R.C.H., Wang, W.-X. and Guo, L. 2003. Marine diatom uptake of iron bound with natural colloids of different origins. Mar. Chem. 81(3/4): 177-189.

65) Hung, C.-C., Guo, L., Santschi, P. H. Alvarado-Quiroz, N. and Haye, J. 2003. Distributions of carbohydrate species in the Gulf of Mexico. Mar. Chem. 81(3/4): 119-135.

64) *Guo, L., Lehner. J.K., White, D.M. and Garland, D.S. 2003. Heterogeneity of natural organic matter from the Chena River, Alaska. Water Research, 37(5): 1015-1022.

63) Chen, M., Huang, Y., Cai, P. and Guo, L.2003. Particulate organic carbon export fluxes in the Canada Basin and Bering Sea as derived from 234Th/238U disequilibria. Arctic, 56(1): 32-44.

62) Santschi, P. H., Hung, C.-C., Schultz, G., Alvarado-Quiroz, N., Guo, L., Pinckney, J., Walsh, I. 2003. Control of acid polysaccharide production and 234Th and POC export fluxes by marine organisms. Geophys. Res. Lett., 30(2), 1044, doi: 10.1029/2002GL016046.

 

Year 2002:

61) Guo, L., Chen, M. and Gueguen, C. 2002. Control of Pa/Th ratio by particulate chemical composition in the ocean. Geophys. Res. Lett. 29(20), 1961, doi: 10.1029/2002GL015666.

60) Santschi, P. H., Roberts, K. A. and Guo, L. 2002. The organic nature of colloidal actinides transported in surface water environments. Environ. Sci. Technol. 36(17): 3711-3719.

59) Guo, L. Hung, C. C. Santschi, P. H. and I. D. Walsh. 2002. 234Th scavenging and its relationship to acid polysaccharide abundance in the Gulf of Mexico. Marine Chemistry, 78: 103-119.

58) Guo, L., Santschi, P. H. and Ray, S. 2002. Metal partitioning between colloidal and dissolved phases and its relation with bioavailability to American oysters. Mar. Environ. Res., 54(1): 49-64.

57) Chen, M. Huang, Y., Guo, L. Cai, P., Yang, W., Liu, G. and Qiu, Y. 2002. Biological productivity and organic carbon fluxes in the Arctic Ocean. Chinese Science Bulletin. 47(12): 1037-1040.

56) Quigley, M. S., Santschi, P. H., Hung, C, Guo, L. and Honeyman, B. D. 2002. Importance of acid polysaccharides for 234Th complexation to marine organic matter. Limnol. Oceanogr., 47(2): 367-377.

55) Cai, P.H., Huang, Y.P., Chen, M., Guo, L., Liu G. and Qiu, Y. 2002. New production based on 228Ra-derived nutrient budgets and Th-estimated POC export at the intercalibration station in the South China Sea. Deep-Sea Res. I , 49(1): 53-66.

 

Year 2001:

54) Quigley, M. S., Santschi, P. H., Guo, L. and Honeyman, B. D. 2001. Sorption irreversibility and coagulation behavior of 234Th with surface-active marine organic matter. Mar. Chem. 76: 27-45.

53) *Guo, L. Hunt, B. J., Santschi, P. H. and Ray, S.M. 2001. Effect of dissolved organic matter on the metal uptake by American oysters. Environ. Sci. Technol., 35: 885-893.

52) *Guo, L., Hunt, B.J., Santschi, P. H. 2001. Ultrafiltration behavior of major ions (Na, Ca, Mg, F, Cl, SO4) in natural waters. Water Research, 35: 1500-1508.

51) Wang, W. and Guo, L. 2001. Production of colloidal organic carbon and trace metals by phytoplankton decomposition. Limnol. Oceanogr., 46(2): 278-286.

50) Santschi, P. H., Guo, L., Wen, L. 2001. Box coring artifacts in sediments affected by a waste water outfall. Mar. Poll. Bull. 42: 267-272.

49) Santschi, P. H., Guo, L., Asbill, S., Allison, M. Kepple, A. B. and Wen, L., 2001. Accumulation rates and sources of sediments and organic carbon on the Palos Verdes Shelf based on radioisotopic tracers (137Cs, 239, 240Pu, 210Pb, 234Th, 238U and 14C). Marine Chemistry, 73: 125-152.

48) Santschi, P. H., Wen, L. and Guo, L. 2001. Transport and diagenesis of trace metals and organic carbon in Palos Verdes shelf sediments affected by a sewage outfall. Marine Chemistry, 73:153-171.

 

Year 2000:

47) Wang, W. and Guo, L. 2000. Influence of natural colloids on metal bioavailability to two marine bivalves. Environ. Sci. Technol., 34: 4571-4576.

46) Mitra, S.; Bianchi, T. S.; Guo, L. and Santschi, P. H. 2000. Terrestrially-derived dissolved organic matter in the Chesapeake Bay and the Middle Atlantic Bight. Geochim. Cosmochim. Acta, 64: 3547-3557.

45) Guo, L., Santschi, P. H. and Warnken, K. W. 2000. Trace metal composition of colloidal organic matter in marine environments. Mar. Chem., 70(4): 257-275.

44) Wang, W. and Guo L, 2000. Bioavailability of colloidal-bound metals to marine plankton. Mar. Ecol. Prog. Ser., 202: 41-49.

43) Chen, M., Guo, L., Huang, Y. Gao, Z., Cai, Y. and Cai, M. 2000. Application of the cross-flow ultrafiltration technique to examining colloidal uranium, thorium, radium isotopes and organic carbon in seawater. Acta Oceanologica Sinica, 22(5): 51-59.

42) Guo, L and Santschi P. H. 2000. Sedimentary source of old high molecular weight dissolved organic carbon from the ocean margin benthic nepheloid layer. Geochim. Cosmochim. Acta, 64:651-660.

41) Guo, L., Wen, L., Tang, D., and Santschi, P. H. 2000. Re-examination of cross flow ultrafiltration for sampling aquatic colloids: evidence from molecular probes. Mar. Chem., 69: 75-90.

 

Before 2000:

40) Santschi, P. H., Guo, L., Quigley, M. S, Baskaran, M, and Walsh, I. 1999. Boundary exchange and scavenging of radionuclides in continental margin waters of the Middle Atlantic Bight: implications for organic carbon fluxes. Continental Shelf Res., 19: 609-636.

39) Santschi, P. H., Balnois, E., Wilkinson, K., Buffle J., and Guo, L. 1998. Fibrillar polysaccharides in marine macromolecular organic matter as imaged by atomic force microscopy and transmission electron microscopy. Limnol. Oceanogr. 43: 896-908.

38) Guo, L. and Santschi, P. H., 1997. Isotopic and elemental characterization of colloidal organic matter from the Chesapeake Bay and Galveston Bay. Mar. Chem., 59: 1-15.

37) Guo, L. and Santschi, P. H., 1997. Composition and cycling of colloids in marine environments. Reviews of Geophysics, 35(1): 17-40.

36) Guo, L. and Santschi, P. H., 1997. Measurements of dissolved organic carbon in seawater by the high temperature combustion method. Acta Oceanologica Sinica, 16(3): 339-353.

35) Guo, L., Santschi, P. H., and Baskaran, M. 1997. Interaction of thorium isotopes with colloidal organic matter in oceanic environments. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 120: 255-271.

34) Bianchi, T., Lambert, C., Santschi, P., and Guo, L., 1997. Sources and transport of land-derived particulate and dissolved organic matter in the Gulf of Mexico (Texas shelf/slope): the use of lignin-phenols and loliolides as biomarkers. Org. Geochem., 27: 65-78.

33) Guo, L. and Santschi, P. H., 1996. A critical evaluation of the cross-flow ultrafiltration technique for sampling colloidal organic carbon in seawater. Mar. Chem., 55: 113-127.

32) Guo, L., Santschi, P. H., Cifuentes, L. A., Trumbore, S., and Southon, J., 1996. Cycling of high molecular weight dissolved organic matter in the Middle Atlantic Bight as revealed by carbon isotopic (13C and 14C) signatures. Limnol. Oceanogr., 41: 1242-1252.

31) Baskaran, M., Santschi, P. H., Guo, L., Bianchi, T. S. and Lambert, C., 1996. 234Th:238U disequilibria in the Gulf of Mexico: the importance of organic matter and particle concentration. Continental Shelf Res., 16: 353-380.

30) Guo, L., Santschi, P. H. and Warnken, K. W., 1995. Dynamics of dissolved organic carbon in oceanic environments. Limnol. Oceanogr., 40: 1392-1403.

29) Guo, L., Santschi, P. H., Baskaran, M., and Zindler, A., 1995. Distribution of dissolved and particulate 230Th and 232Th in seawater from the Gulf of Mexico and off Cape Hatteras as measured by SIMS. Earth Planet. Sci. Lett., 133: 117-128.

28) Santschi, P. H. Guo, L., Baskaran, M., Trumbore, S., Southon, J., Bianchi, T. S., Honeyman, B. and Cifuentes, L., 1995. Isotopic evidence for contemporary origin of high-molecular weight organic matter in oceanic environments. Geochim. Cosmochim. Acta, 59: 625-631.

27) Bianchi, T. S., Lambert, C., Santschi, P. H., Baskaran, M. and Guo, L., 1995. Plant pigments as biomarkers of high-molecular-weight dissolved organic carbon. Limnol. Oceanogr., 40: 422-428.

26) Guo, L., Coleman, C. H., and Santschi, P. H., 1994. The distribution of colloidal and dissolved organic carbon in the Gulf of Mexico. Mar. Chem., 45: 105-119.

25) Hong, H., Xu, L. and Guo, L., 1993. Vertical fluxes of settling particulate matter in Taiwan Strait, Luoyuan Bay and Xiamen Bay. Marine Sciences, 1: 47-51.

24) Guo, L. and Hong, H., 1992. The distribution and characterization of suspended particulate matter in Luoyuan Bay of Fujian. Oceanol. Limnol. Sinica, 23: 83-89.

23) Guo, L., Hong H., Chen J. and Hong L.,1991. Major element composition and controlling factors of suspended particles in Xiamen Harbor and Jiulong River estuary. Marine Sciences, 2: 37-41.

22) Guo, L. and Hong, H., 1991. Variations of particulate organic carbon in the Southern Taiwan Strait. In: H. Hong and others (Editors) Minnan-Taiwan Bank Fishing Ground Upwelling Ecosystem Study, Science Press, Beijing, pp. 224-230.

21) Guo, L., and others, 1991. Distribution of suspended particulate matter from the Southern Taiwan Strait. In: H. Hong and others (Editors) Minnan-Taiwan Bank Fishing Ground Upwelling Ecosystem Study, Science Press, Beijing, pp. 273-281.

20) Guo, L., Hong, H., Chen, J. and Hong, L., 1991. Chemical composition of suspended particulate matter from the Southern Taiwan Strait. In: H. Hong and others (Editors) Minnan-Taiwan Bank Fishing Ground Upwelling Ecosystem Study, Science Press, Beijing, pp. 282-288.

19) Hong, H. and Guo, L., 1991. A preliminary study of carbon cycling in the Southern Taiwan Strait. In: H. Hong and others (Editors) Minnan-Taiwan Bank Fishing Ground Upwelling Ecosystem Study, Science Press, Beijing, pp. 231-239.

18) Hong, H. and Guo, L., 1991. The elemental composition of microplankton in the Southern Taiwan Strait. In: H. Hong and others (Editors) Minnan-Taiwan Bank Fishing Ground Upwelling Ecosystem Study, Science Press, Beijing, pp. 240-245.

17) Hong, H., Xu, L., Guo, L. and Xiao Y., 1991. Geochemical study of organic C, N, P and Si in sediments of Southern Taiwan Strait. In: H. Hong and others (Editors) Minnan-Taiwan Bank Fishing Ground Upwelling Ecosystem Study, Science Press, Beijing, pp. 289-297.

16) Xu, L., Hong, H., Guo, L. and Hong, L., 1991. Geochemistry of major elements in sediments of the Southern Taiwan Strait. In: H. Hong and others (Editors) Minnan-Taiwan Bank Fishing Ground Upwelling Ecosystem Study, Science Press, Beijing, pp. 298-306.

15) Guo, L. and others, 1989. The major-element chemistry of suspended particles from Jiulong River Estuary. Journal of Xiamen University (Natural Science), 28:436-438.

14) Guo, L., Hong, H. and Zhuang, J., 1989. Sediment-water exchange of phosphorus and silicon in Luoyuan Bay. Tropic Oceanography, 8(3): 60-67.

13) Guo, L., Hong, H., Wang, H., 1989. Variation of particulate phosphorus from Luoyuan Bay. Journal of Xiamen University, (Natural Science) 28(Sup):50-54.

12) Guo, L., Dai, M. Li, W., Hong, L. and Hong, H., 1989. Distribution and variations of nutrients at Luoyuan Bay. Journal of Xiamen University, (Natural Science) 28(Sup):55-58.

11) Guo, L., Yao, W. and Hong, H., 1989. Distribution of heavy metals (Cu, Pb, Cd, Ni) in sediments of the Luoyuan Bay. Journal of Xiamen University, (Natural Science), 28(Sup):59-64.

10) Hong, H., Guo, L., Chen, J. and Hong, L., 1989.Variations of particulate organic carbon in Luoyuan Bay. Journal of Xiamen University(Natural Science), 28(Sup):45-49.

9) Hong, H., Guo, L., Hong, L. and Chen, J., 1989. Distribution and chemical composition of total suspended matter in seawater from Luoyuan Bay. Journal of Xiamen University (Natural Science), 28(Sup):40-44.

8) Li, W., Wang, X., Guo, L., Hong, L. and Qiu, Y., 1989. The evaluation of primary productivity in Luoyuan Bay. Journal of Xiamen University (Natural Science), 28(Sup):64-70.

7) Li, W., Guo, L., Wang, X., Hong, L. and Qiu, Y., 1989. The study of relationship between primary productivity and environmental factors in Luoyuan Bay. Journal of Xiamen University (Natural Science), 28(Sup):71-77.

6) Wang, X., Li, W. and Guo, L., 1989. Inquiry of seawater alkalinity in Luoyuan Bay. Journal of Xiamen University (Natural Science), 28(Sup): 148-151.

5) Hong, H., Guo, L., Chen, J. and Jin, C., 1989. Characteristics of particulate phosphate at Jiulong River estuary. Journal of Xiamen University (Natural Science), 28:74-77.

4) Gao, S., Xu, Z., Yang, S., Hong, H. and Guo, L., 1989. The environment characteristics and the exploitation of bioresources in Daguanban reclamation area of Luoyuan Bay, Fujian. Journal of Xiamen University (Natural Sci.), 28(Sup): 13-18.

3) Hong, H., Guo, L. and Chen, J. 1987. The relation between particle characteristic and biological activities in ecosystem experiments. In "Proceedings of International Marine Ecosystem Enclosed Experiments Symposium". Beijing, China.

2) Guo, L., Guo, J. and Li, F., 1986. Physical chemical processes of silicate in the estuarine region, V. A simulation experiment on the formation of authigenic silicate minerals. Acta Oceanologica Sinica. 4:70-75.

1) Guo, L. and Li, Faxi. 1986. The role of magnesium in the formation of authigenic silicate in the sea. Journal of Xiamen University(Natural Science), 25:672-678.

 

C: Other publications

1) Shin, K. and Guo, L. 2002. Carbon cycle in the Arctic Ocean. Kaiyo Monthly, Vol. 34, 845-849.

2) Gueguen, C., Wang, D. and Guo, L. 2003. Optical properties of natural organic matter in the Yukon River Basin. Tohoku Geophys. J. 36(4): 434-438.

3) Benitez-Nelson C. and Th-234 Group. 2004. Future applications of Thorium-234 in aquatic ecosystems. EOS, Transactions, American Geophysical Union, 85 (45): 470-471.

4) Hayes, D., Guo, L. and Mcguire, A.D. 2007. A scientific synthesis and assessment of the Arctic Carbon Cycle, AMAP/CliC/IASC Arctic Carbon Assessment Workshop. EOS, Transactions, American Geophysical Union, 88 (26): 270-270 (June 26, 2007).

 

D: Abstracts and Presentations

1)         Guo, L., Coleman, C. and Santschi, P. H., 1993. Processes which regulate dissolved and colloidal organic carbon concentrations from the Trinity River to the open Gulf of Mexico. In: “Proceedings of 12th International Estuarine Research Federation, Nov. 14-18, 1993, Hilton Head Island, S.C.”, p46.

2)         Baskaran, M. Santschi, P. H., Guo, L., Bianchi, T. S. and Lambert, C., 1993. 234Th:238U disequilibria in the Gulf of Mexico: the importance of organic matter. EOS, 74 (43): 327.

3)         Guo, L., Santschi, P. H. and Warnken, K. W., 1994. Dynamics of dissolved organic carbon from shelf and slope areas in the Gulf of Mexico and off Cape Hatteras. EOS, Transactions, AGU, 75(3): 105.

4)         Santschi, P. H., Guo, L. and Baskaran, M., 1994. Association of 234Th with suspended particles and colloids in the Gulf of Mexico and the Atlantic Ocean. EOS, 75(3): 235-236.

5)         Santschi, P. H., Guo, L., Trumbore, S., Southon, J., Bianchi, T. and Cifuentes, L., 1994. Isotopic and biochemical evidence for the recent origin of colloidal organic matter in the ocean: I. Carbon partitioning. Proc. 207th ACS National Meeting, San Diego, CA, March 13-17, 1994, GEOC, p146.

6)         Santschi, P. H., Guo, L., Baskaran, M. and Honeyman, B., 1994. Isotopic and biochemical evidence for the recent origin of colloidal organic matter in the ocean: II. 234Th partitioning. Proc.207th ACS National Meeting, San Diego, CA, March 13-17, 1994, GEOC, p162

7)         Guo, L., Santschi, P. H., Baskaran, M., Trumbore, S. and Southon, J., 1994. Organic carbon cycling in the Atlantic Ocean off Cape Hatteras. EOS, 75(44): 327.

8)         Santschi, P. H., Guo, L., Baskaran, M., Zindler, A. and Walsh, I, 1994. Comparison of Th and Pb nuclide cycling in the Atlantic Ocean off Cape Hatteras and in the Gulf of Mexico. EOS, 75(44) 327.

9)         Bianchi, T., Lambert, Santschi, P. H., Baskaran, M. and Guo, L., 1994. Plant pigments and lignin-phenols as tracers of particulate and high-molecular-weight dissolved organic carbon (HMW DOC) in the Gulf of Mexico. EOS, 75(44): 328.

10)     Guo, L. and Santschi, P. H., 1995. Cross-flow Ultrafiltration techniques for sampling colloidal organic carbon in estuarine waters. Proceedings of 13th International Estuarine Research Federation Conference, Corpus Christi, TX, November 12-16, 1995, p51.

11)     Guo, L. 1996. Cycling of dissolved and colloidal organic matter in oceanic environments as revealed by carbon and thorium isotopes. Abstracts of Dissertations Symposium of Chemical Oceanography XIII, East-West Center, Honolulu, Hawaii, May 6-9, 1996, p9-10.

12)     Guo, L. and Santschi, P. H., 1996. A critical evaluation of cross-flow ultrafiltration techniques for sampling colloidal organic carbon in seawater. Transactions American Geophysical Union, EOS, 76(3): 173.

13)     Guo, L. and Santschi, P. H., 1996. Cycling of high molecular weight dissolved organic matter in Galveston Bay and the Chesapeake Bay. Transactions American Geophysical Union, EOS, 77(46): F281.

14)     Guo, L., Santschi, P. H., Boland, G. S. and Lehman, R., 1997. A benthic lander for sampling large volume seawater from the benthic nepheloid later. Abstract of DOE Ocean Margins Program Initial Synthesis Meeting, January 26-29, 1997, Savannah, GA.

15)     Santschi, P. H., Guo, L., Balnois, E., Wilkinson, K. and Buffle, J., 1997. Marine macromolecular organic matter as seen by atomic force microscopy. Abstract of DOE Ocean Margins Program Initial Synthesis Meeting, January 26-29, 1997, Savannah, GA.

16)     Guo, L. Santschi, P. H. and Warnken, K. W., 1997. Distributions of colloid-associated trace metals in estuarine waters. Abstract of ASLO 97’ Aquatic Science Meeting, Santa Fe, NM, February 10-14, 1997, p178.

17)     Guo, L. Santschi, P. H., Boland, G. S. and Lehman, R. 1998. Organic carbon cycling in ocean margin benthic nepheloid layer. EOS, Transactions of AGU, Vol. 79(1), OS13.

18)     Santschi, P.H., Balnois, E., Wilkinson, K., Zhang, J., Buffle, J., and Guo, L. 1998. Fibrillar polysaccharides in marine macromolecular organic matter, as imaged by Atomic Force Microscopy and Transmission Electron Microscopy, AGU/ASLO meeting in San Diego, CA. EOS 79(1), Jan. 6, 1998, p. OS13.

19)     Santschi, P.H., Guo, L., Walsh, I.D., Quigley, M., and Baskaran, M. 1998. Boundary exchange and scavenging of radionuclides in continental margin waters of the Middle Atlantic Bight: Implications for organic carbon fluxes, AGU/ASLO meeting in San Diego, CA. EOS 79(1), Jan. 6, 1998, p. OS183.

20)     Gonzalez, S.; Guo, L.; Ray, S. & Santschi, P. H. 1999. Bioavailability of colloidal materials to bivalves in Galveston Bay waters. Galveston Bay Estuary Symposium, January 28-29, 1999. Moody Gardens Convention Center.

21)     Mitra, S.; Bianchi, T. S.; Guo, L. and Santschi, P. H. 1999. Sources, ages, and transport of terrestrially-derived colloidal organic matter in the Chesapeake Bay and the Middle Atlantic Bight. Abstract of ASLO 99’ Aquatic Science Meeting, Santa Fe, NM, February 1-5, 1999.

22)     Santschi, P.H., Tang, D., Quigley, M., Guo, L., and Wen, L.-S. 1999. Trace metal complexation to macromolecular organic matter in surface waters. Proc. 26th Annual Conference of the Federation of Analytical Chemistry and Spectroscopy Societies Conference on Analytical Sciences and Spectroscopy (ICASS), Vancouver, Canada, Oct. 24-29, 1999, p. 101.

23)     Guo, L. 1999. Cycling of colloidal and dissolved organic matter and their role in aquatic environments. Invited Seminar, Department of Biology and Chemistry at City University of Hong Kong. September 3, 1999.

24)     Santschi, P. H. and Guo, L. 1999. Role of Colloids in the Mobility of Radionuclides in Aquatic Systems. Transactions American Geophysical Union, EOS, AGU Fall Meeting, (Invited), December 13-17, 1999, San Francisco, CA.

25)     Quigley, M. S., Santschi, P. H., Guo, L. and Murphy, R. 1999. The importance of polysaccharide molecular component of natural organic matter in the complexation of Th(IV). Proceedings of 16th International Estuarine Research Federation Conference, New Orleans, LA, September 27-31, 1999.

26)     Gonzalez, S., Guo, L. Ray, S. M. and Santschi, P. H. 1999. Bioavailability of colloidal materials to bivalves in Galveston Bay waters. Galveston Bay Estuary Symposium, January 28-29, 1999. Moody Gardens Convention Center.

27)     Guo, L. Wen, L., Tang, D. and Santschi, P. H. 2000. Re-examination of cross-flow ultrafiltration for isolating colloidal organic matter in seawater. AGU/ASLO Ocean Science Meeting, January 24-28, 2000, San Antonio, TX.

28)     Quigley, M. S., Santschi, P. H., Guo, L. Hung, C. and Murphy, R. 2000. The Importance of the acid polysaccharide fraction of marine organic matter for Th(IV) complexation and organic carbon. AGU/ASLO Ocean Science Meeting, January 24-28, 2000, San Antonio, TX.

29)     Guo, L. and Santschi, P.H. 2000. Colloidal organic matter in marine environments: source, composition, and bioavailability. (Invited) ASLO 2000 Aquatic Science Meeting, Copenhagen, Denmark, June 5-9, 2000.

30)     Wang, W.-X. and Guo L. 2000. Bioavailability of colloid-bound Cd, Cr, and Zn to marine plankton. ASLO 2000 Aquatic Science Meeting, Copenhagen, Denmark, June 5-9, 2000.

31)     Guo, L., Hunt, B. J., Santschi, P. H., Ray, S. M. 2000. Effect of dissolved organic matter on the uptake of trace metals by American oysters (Crassostrea virginica). SETAC-21st annual meeting,. November 12-16, 2000.

32)     Hung, C.C.,Guo, L., Santschi, P.H. 2001. Distribution of polysaccharide and uronic acids in the Gulf of Mexico. ASLO Aquatic Science Meeting, February 12-16, 2001. Albuquerque, New Mexico, USA.

33)     Guo, L. and Santschi, P. H. 2001. How reliable are thorium isotopes as a tracer in the cycling of organic carbon in the ocean. Gordon Research Conference on Polar Marine Science, Field Analyses and Numerical Modeling of coupled physical, chemical and biological systems. March 11-16, 2001, Ventura, California.

34)     Hung, C.-C., Guo, L. and Santschi, P. H. 2001. Importance of acid polysaccharides for Th-234 complexation to marine particles. Gordon Research Conference-Chemical Oceanography, August 11-17, 2001. NH.

35)     Guo, L., Chin-Chang Hung, Peter H. Santschi and Ian Walsh. 2001. Phase partitioning of 234Th and its relationship with acid polysaccharides content in the Gulf of Mexico. EOS, Trans AGU 82(47): F619, Fall Meet. Suppl., Abstract OS21D-10.

36)     Guo, L., Tanaka, N. Schell, D. M., Santschi, P. H,. 2002. Nitrogen and carbon isotopic composition of dissolved organic matter in marine environments. EOS, Trans AGU 83(4): Ocean Science Meeting Suppl., Abstract OS32S-10, 2002.

37)     Hung, C.-C., Guo, L., Schultz, G. Alvarado-Quiroz, N. G., Haye, J. Santschi, P. H. and Pinckney, J. L 2002. Abundance and origin of acid polysaccharides in the marine environment. EOS, Trans AGU 83(4): Ocean Science Meeting Suppl., Abstract OS51I-10, 2002.

38)     Santschi, P.H., Hung, C.-C., Guo, L., Schultz, G. Alvarado-Quiroz, N. G., Haye, J. and Pinckney, J. L. 2002. Role of acid polysaccharides on the Th-234 scavenging. EOS, Trans AGU 83(4): Ocean Science Meeting Suppl., Abstract OS51I-06, 2002.

39)     Guo, L. 2002. Control of POC/Th ratio by particulate chemical composition. Presentation at the Japan Frontier annual meeting, Yokohama, Japan, March 18, 2002.

40)     Guo, L. White, D. and Garland, D. S. 2002. Characterization of estuarine colloidal organic matter by pyrolysis-GC/MS and IR-MS. Abstract in :"7th International Estuarine Biogeochemistry Symposium". Grimstad, Norway, May 28-31, 2002.

41)     Guéguen, C. and Guo, L. 2002. Thorium and protactinium sorption on silica and carbonate. Presented at the 2002 Goldschmidt Conference, August 4-5, 2002, Davos, Switzerland, published at Geochim. Cosmochim. Acta, 66(15A), pp: A295 Suppl. 1 Aug. 2002.

42)     Gueguen, C., Wang, D. and Guo, L. 2002. Optical properties of natural organic matter in the Yukon River Basin. Presented the GCCA3 Workshop, November 4-5, 2002, Fairbanks, Alaska.

43)     Chen, M., Huang, Y.P., Cai, P.H. and Guo, L. 2002. Biological Production and POC Export Fluxes in the Canada Basin and the Bering Sea. EOS, Trans AGU 83(x): Fall Meeting (December 6-10, 2002) Abstracts.

44)     Guéguen, C., Wang, D. and Guo, L. 2002. Characteristics and Variations of Colored Dissolved Organic Matter in Size Fractionated DOM in Yukon River waters. EOS, Trans AGU 83(x): Fall Meeting (December 6-10, 2002) Abstracts.

45)     Guo, L., Lehner, J. K., White, D. M., and Garland, D. S. 2003. Isotopic and molecular composition of size fractionated natural organic matter from Chena River waters. Abstract presented at the 2003 Aquatic Science Meeting, February 8-14, 2003, Salt Lake City.

46)     Hung, C.-C., Guo, L., Schultz, G., Pinckney, J.L., and Santschi, P.H. 2003. Production and flux of carbohydrate species in marine environments. Abstract presented at the 2003 Aquatic Science Meeting, February 8-14, 2003, Salt Lake City.

47)     Guo, L. Semiletov, I.P., Gustafsson, O., Ingri, J. Andersson, P. Dudarev, O. White, D.M. 2003. Characterization of Siberian Arctic estuarine sediments: Implications for terrestrial organic carbon export. Abstract presented at the 2003 EUG/AGU Meeting, April 7-11, 2003, Nice/France.

48)     Andersson, P., Guo, L., Semiletov, I.P., Gustafsson, O., Ingri, J., Dudarev, O. and White, D.M. 2003. Nd- and Sr- isotopes in Siberian arctic estuarine sediments: implications for sediment provenance. Abstract presented at the 2003 EGS/AGU/EUG Meeting, April 7-11, 2003, Nice/France.

49)     Santschi, P.H., Hung, C.-C. and Guo, L. 2003. Comparison between upper ocean carbon export fluxes measured by sediment traps and the POC/234Th-ratio approach in the Gulf of Mexico. Abstract presented at the 2003 EGS/AGU/EUG Meeting, April 7-11, 2003, Nice/France.

50)     Guo, L., Tanaka, T. Wang, D., Tanaka, N. and Murata, A. 2003. Dissolved and particulate organic matter in the southeastern Bering Sea shelf. Abstract presented at the 2003 IUGG Meeting, June 30-July 11, 2003, Sapporo, Japan.

51)     Gueguen, C., Guo, L., and Tanaka, N. 2003. Colored-dissolved organic matter in the Beaufort Sea: implications for water mixing. Paper presented at the 2003 IUGG Meeting, June 30-July 11, 2003, Sapporo, Japan.

52)     Guo, L., Guéguen, C., Tanaka, T., Tanaka, N, and Wang, D. 2004. Characterization of dissolved and particulate organic matter in the Arctic Ocean: implications for shelf/basin interactions, Presented at the 7th R/V Mirai Symposium, January 15-16, 2004, Yokohama, Japan.

53)     Guo, L. Guéguen, C. and Zhang, J.-Z. Fluxes and speciation of nutrients (N, P, Si) from the Yukon River, Presented at the 8th International Estuarine Biogeochemistry Symposium, May 16-20, 2004, Solomons, MD.

54)     Guo, L., Semiletov, I. P., Akasofu, S.I., Dudarev, O. Gustafsson, O. and Macdonald, R. 2004. Remobilization and export of terrestrial organic carbon across the Arctic land/shelf interface under a changing climate. Presentation at the 2004 AAAS Arctic Science Conference, September 14-16, 2004, Vladivostok.

55)     Guo, L. and Santschi, P. Ultrafiltration technique and its application to sampling environmental colloids, International Workshop on Aquatic Colloids, September 24-25, 2004, Birmingham, UK.

56)     Guo, L. Biogeochemical consequence of climate change in the arctic region: evidence from organic carbon dynamics. The 2nd International Symposium on Polar Sciences of China, October 16-17, 2004, Beijing.

57)     Jorgenson, T., Ping, C.-L., Guo, L., Shur, Y., Brown, J. Initiation of a study on the flux and transformation of organic carbon across the eroding coastline of Northern Alaska, The 5th Arctic Coastal Dynamics Workshop, October 13-16, 2004, Montreal, Canada.

Year 2005 (12)

58)     Belzile, C. and Guo, L. Scavenging of optically active dissolved organic matter by glacial flour in the Yukon River, ASLO 2005 Aquatic Sciences Meeting, February 20-25, 2005, Salt Lake City, Utah, USA.

59)     Guo, L., Guéguen, C., Zhang, J.-Z. Phase speciation of organic carbon and nutrients in Yukon River waters, ASLO 2005 Aquatic Sciences Meeting, February 20-25, 2005, Salt Lake City, Utah, USA.

60)  Guo, L. Biogeochemical tracers of carbon cycle, land/ocean interaction, and environmental change in the Arctic region. Arctic Observing Network Panel Meeting, sponsored by Polar Research Board/National Academy of Sciences, Anchorage, February 9-10, 2005.

61)     Guo, L., Ping, C.L., Jorgenson, M.T., and Shur, Y. 2005. Transport of old terrigenous organic carbon across the arctic land/ocean interface under a warming climate. 2nd AOGS Meeting, Singapore, June 20-25, 2005.

62)  van Dongen, B. E., L. Guo and I. Semiletov and Ö. Gustafsson, 2005, Is arctic climate warming causing remobilization of the huge reservoir of tundra/taiga soil carbon? The 22nd International Meeting on Organic Geochemistry (22nd IMOG), September 12-16, 2005, Seville, Spain.

63)  Xu, C., Ping, C.-L. and Guo, L. 2005. Biogeochemical characterization of low molecular weight and colloidal organic matter in Arctic tundra soils. Presentation at the ASA-CSSA-SSSA International Annual Meeting, November 6-11, 2005, Salt Lake City, UT.

64)  Guo L. and Cai, Y.H. 2005. Colloidal organic matter in Arctic river waters as quantified by ultrafiltration and permeate model. The 1st International Conference on Aquatic Colloids, November 8, 2005, Birmingham, UK.

65)  Guo L., Cai, Y., Belzile, C. and Macdonald, R. 2005. Export fluxes of dissolved organic carbon from the Yukon River Basin. 2005 AGU Fall Meeting, December 5-9, 2005, San Francisco, CA.

66)  Cai, Y. and Guo L. 2005. Fluxes of colloidal organic carbon to the Arctic Ocean from North American Rivers. Presentation at the 2005 AGU Fall Meeting, December 5-9, 2005, San Francisco, CA.

67)  Dou, F., Guo, L., Ping, C.-L. and Jorgenson, T. 2005. Partitioning and fate of potentially exported soil organic carbon from the eroding coastline of northern Alaska. Presentation at the 2005 AGU Fall Meeting, December 5-9, 2005, San Francisco, CA.

68)  Xu, C., Dou, F., Guo, L. and Ping, C.L. 2005. Soluble organic carbon in size fractionated Arctic tundra soils, Alaska. Presentation at the 2005 AGU Fall Meeting, December 5-9, 2005, San Francisco, CA.

69)  Jorgenson, M.T., Ping, C., Guo, L., Shur, Y., Michaelson, G., Tumskoy, V., Kanevsky, M. and Brown, J. 2005. Flux and transformation of soil organic carbon across the eroding coastline of northern Alaska, preliminary results. Invited presentation at the 2005 AGU Fall Meeting, December 5-9, 2005, San Francisco, CA.

Year 2006 (15)

70)     Guo, L., and Macdonald R. 2006. Source and transport of dissolved, colloidal and particulate organic matter from Yukon River waters. EOS, Trans AGU, 2006 Ocean Science Meeting, Honolulu, Hawaii, February 20-24, 2006 (OS16K-01).

71)     Hung, C., Xu, C., Schwehr, K., Roberts, K., Santschi, P. H., Cai, Y., Guo, L., Tsai, J., and Wei, C., 2006, Re-examination of POC/Th-234 ratios in size-fractionated particles. 2006 Ocean Sciences Meeting, Honululu, HI, February 20-24, 2006 (OS15B-11).

72)     van Dongen, B., L. Guo and I. Semiletov and O. Gustafsson, 2006. Isotopic and Molecular Investigations of Terrestrial Carbon Exported with the Five Great Russian Arctic Rivers. 2006 Ocean Sciences Meeting, Honululu, HI, February 20-24, 2006 (OS35P-15).

73)     Dou, F., Guo, L., Ping, C.L., Michaelson, G. and Jorgenson, T. 2006. Fate of potentially exported soil organic carbon from the eroding coastline of Northern Alaska, Workshop on the Study of Northern Alaska Coastal System, March 27-28, 2006, Seattle, WA.

74)     Ping, C.L., Guo, L., Jorgenson, T., Shur, Y. and Brown, J. 2006. Mass transfer across the eroding arctic coast and community action, Alaska. Presentation at the ARCUS Annual Meeting, May 25-26, 2006, Washington, DC.

75)     Guo, L., Gueguen, C., Wang, D., and Macdonald, R.W. 2006. Phase partitioning and dynamic cycling of organic carbon and nitrogen in the upper Yukon Rive, 2006 ASLO Summer Meeting, June 5-9, 2006, Victoria, Canada.

76)     Cai, Y., Guo, L., Whitledge, T., and Douglas, T.A. 2006. Seasonal variations in nutrient concentrations and speciation in the Chena River, interior Alaska. 2006 ASLO Summer Meeting, June 5-9, 2006, Victoria, Canada.

77)     Michaelson, G.J., Ping, C.L., and Jorgenson, T. Dou, F., Shur, Y., and Guo, L. 2006. Methane and Carbon Dioxide release from eroding coastline North Slope, Alaska. Abstract and poster presentation to World Congress of Soil Science Meeting Philladelphia July 2006.

78)     Guo, L. 2006. Release of old soil organic carbon into Arctic Ocean through rivers in a changing climate. Western Pacific Geophysics Meeting, July 24-27, 2006, Beijing, China.

79)     Zou, L., Sun, M.Y. and Guo, L. 2006. Lipids and their stable carbon isotope compositions of high-molecular-weight dissolved organic matter in the Middle Atlantic Bight: Implications for source and transformation of organic carbon. Western Pacific Geophysics Meeting, July 24-27, 2006, Beijing, China.

80)     Guo, L. 2006. Warming induced terrestrial organic carbon export across the arctic land/ocean interface in a changing clime. Qingdao Marine Science Symposium, July 30-August 1, 2006, Qingdao, China.

81)     Dou, F., Guo, L., Ping, C., Michaelson, G. and Jorgenson, T. 2006. Fate of Exported Soil Organic Carbon from the Eroding Coastline of Northern Alaska. Arctic AAAS, 2006 Arctic Science Conference, Fairbanks, Alaska, October 2-4, 2006.

82)     Guo, L., Ping, C.L., Macdonald, R.W. and Akasofu, S.I. 2006. Release of old soil organic carbon through arctic rivers in a changing climate. Paper presented in ESSP Global Environmental Change Open Science Conference, 9-12, November, 2006, Beijing.

83)     Cai, Y., Guo, L. and Douglas, T.A. 2006. Carbon Speciation and Biogeochemistry in the Chena River of Interior Alaska, Eos Trans. AGU,2006 Fall Meet. (December 11-15, 2006, San Francisco, CA, Suppl.), Abstract B32B-04.

84)     Dou, F., Guo, L., Ping C.-L. and Jorgenson, M.T. 2006. Distribution and characterization of soil organic carbon along the coastline of Northern Alaska. Eos Trans. AGU, 2006 Fall Meet. (December 11-15, 2006, San Francisco, CA, Suppl.), Abstract C51A-0398.

Year 2007(6)

85)     Cai, Y., Guo, L., and Douglas, T.A. 2007. Carbohydrate composition of dissolved organic matter in the Chena River, Alaska. ASLO 2007 Aquatic Science Meeting, February 5-9, 2007, Santa Fe, NM.

86)     Guo, L., C. Gueguen, T. Tanaka, and M. Sun. 2007. Organic carbon dynamics in the Arctic Ocean: Implications for shelf basin interactions. XXIV IUGG General Assembly. Perugia, Italy, 2-13 July 2007, Abstract # PS006-8874.

87)     Dou, F., X. Yu, C.L. Ping, L. Guo, T. Jorgenson, G. Michaelson. 2007. Spatial variation of tundra soil along the coastline of northern Alaska: Modeling and soil organic carbon. Abstract submitted to SSSA Annual Meetings, November 4-8, 2007, New Orleans, LA.

88)     McGuire, A. D. , L. Anderson, T. R. Christensen, S. Dallimore, L. Guo, D. Hayes, M. Heimann, T. Lorenson, R. Macdonald, and N. Roulet 2007. Sensitivity of the Carbon Cycle in the Arctic to Climate Change. Eos Trans. AGU, 2007 Fall Meet. (December 10-14, 2007, San Francisco, CA, Suppl.), Abstract # B42A-07.

89)     Guo, L., Roberts, K.A. and Santschi, P.H. 2007. Role of natural organic matter in governing the partitioning of Th(IV) and Pa(IV, V) on aquatic colloids and nanoparticles. Eos Trans. AGU, 2007 Fall Meet. (December 10-14, 2007, San Francisco, CA, Suppl.), Abstract # B33C-1430.

90)     Douglas, T, J. Blum, K. Keller , L. Guo, and Y. Cai. 2007. Seasonal Aspects of the Biogeochemistry of the Chena River, Alaska. Eos Trans. AGU, 2007 Fall Meet. (December 10-14, 2007, San Francisco, CA, Suppl.), Abstract # B43F-03.

Year 2008 (13)

91)     Dou, F., C.L. Ping, L. Guo, T. Jorgenson, G. Michaelson, and L.A. Lynn. 2008. Carbon and nitrogen in delta sediments of Colville River, Alaska. Abstract submitted to Ninth International Conference on Permafrost, June 29 – July 3, 2008, University of Alaska Fairbanks, AK.

92)     Cai, Y. and Guo, L. 2008. Quantitative determination of colloidal organic phosphorus in river water and seawater from the Gulf coast region. EOS, Trans AGU, 2008 Ocean Science Meeting, Orlando, FL March 2-7, 2008 (abstract # OS101-677).

93)     Guo, L.D., Cai, Y. and Wang, X. 2008. Export fluxes of dissolved organic and inorganic carbon and nitrogen from the Mississippi River. EOS, Trans AGU, 2008 Ocean Science Meeting, Orlando, FL March 2-7, 2008 (abstract # OS108-1366).

94)     Mojzis, A. K., Redalje, D. G., Guo, L., Cai, Y. 2008. Bacterioplankton abundances in the bay of St Louis, ms, relative to environmental water quality prior to and after hurricane Katrina. EOS, Trans AGU, 2008 Ocean Science Meeting, Orlando, FL March 2-7, 2008 (abstract # OS150-2497).

95)     Wang, X., Cai, Y. and Guo, L.D. 2008. Abundance of dissolved and colloidal carbohydrates in surface waters from the Mississippi River, Pearl River and Bay of Stain Louis. EOS, Trans AGU, 2008 Ocean Science Meeting, Orlando, FL March 2-7, 2008 (abstract # OS101-1358).

96)     Douglas, T, J. Blum, K. Keller, L. Guo, and Y. Cai. 2008. Geochemical signatures are driven by seasonal flow regimes in the Chena River near Fairbanks, Alaska. In: “2008 Goldschmidt Conference”, July 13 – 18, 2008, Vancouver, Canada, A255.

97)     Guo, L., Cai, Y. and Wang, X. 2008. Composition and flux of dissolved organic carbon from the Pearl River, Mississippi. Spring 2008 ACS National Meeting, Geochemistry Division, April 6-10, 2008, New Orleans, LA (abstract#: GEOC 61-1167004).

98)     Guo, L. 2008, Uncertainties in estimating riverine export fluxes of carbon species from northern high latitude rivers. The 10th International Estuarine Biogeochemistry Symposium, May 18-21, 2008, Xiamen, China. p36.

99)     Wang, X., Cai, Y., Guo, L. and Mojzis, A. 2008. Abundance and distributions of carbohydrates in the Bay of Saint Louis estuary. Alabama-Mississippi Bays and Bayous Symposium, October, 28-29, 2008, pp178-179.

100) Shim, M.-J., Y. Cai, L. Guo, and A. Shiller (2008), Effect of the Lower Pearl River Floodplain on Trace Element and Nutrient Transport in the Pearl River, Mississippi (MS), Mississippi-Alabama Bays and Bayous Symposium, October 28-29, Biloxi, MS.

101) Shim, M.-J., Y. Cai, S. Duan, R. W. Smith, L. Guo, T.S. Bianchi and A. Shiller (2008), Did Hurricane Katrina Alter Water Quality in the East Pearl River? Mississippi-Alabama Bays and Bayous Symposium, October 28-29, Biloxi, MS.

102) Stolpe, B., Guo, L. and Shiller, A.M. 2008. Colloidal Size Spectra of Fe in Seawater and River Water as Revealed by Flow Field-Flow Fractionation. Eos Trans. AGU, 2008 Fall Meet. (December 15-19, 2008, San Francisco, CA, Suppl.), Abstract #: OS23D-1285.

103) Guo, L. Chen, M., Roberts, K.A. and Santschi, P.H. 2008. Role of Natural Organic Matter in Regulating the Partitioning of Fe (II, III) in Seawater, Eos Trans. AGU, 2008 Fall Meet. (December 15-19, 2008, San Francisco, CA, Suppl.), Abstract#: OS23D-1287.

 

Year 2009 (12)

104) Wang, X., Cai, Y., and Guo, L. 2009. Estuarine mixing behavior of carbohydrates and dissolved organic carbon in the Bay of Saint Louis Estuary and Mississippi Sound. Mississippi Academy of Sciences Annual Meeting, February 26-27, 2009, Olive Branch, MS.

105) Cooke, M.P., van Dongen, B.E., Talbot, H.M., Shakhova, N., Guo, L.D., and Gustafsson, O.2009. Bacteriohopanepolyol biomarker composition of organic matter exported to the Arctic Ocean by seven of the major Arctic rivers. The 24th International Meeting on Organic Geochemistry (IMOG), September 6-11, 2009, Bremen, Germany.

106) Wang, X., Cai, Y., and Guo, L. 2009. Preferential removal of carbohydrates during estuarine mixing in the Bay of Stl Louis. In “Chemical Oceanography in a Changing World”, February 22-24, 2009, Savannah, Georgia.

107) Cai, Y., Guo, L., Lohrenz, S.E. and Mozjis, A. 2009. Effects of hurricane on river chemistry: A case study of the Pearl River, Mississippi. The 2009 Northern Gulf Institute Annual Conference, May 20-21, 2009 Mobile, AL.

108) Zhou, Z., Stolpe, B, and Guo, L. 2009. Composition and size spectra of CDOM in the Mississippi and Pearl rivers: a comparative study. The 2009 Northern Gulf Institute Annual Conference, May 20-21, 2009 Mobile, Alabama.

109) Wang, X., Cai, Y. and Guo, L.2009.Distributions of dissolved and colloidal carbohydrates in river waters and seawater from the northern Gulf of Mexico. The 2009 Northern Gulf Institute Annual Conference, May 20-21, 2009 Mobile, AL.

110) Stolpe, B., Guo, L. and Shiller, A.M. 2009. Size and composition of colloidal organic matter and Fe in the Mississippi and Pearl rivers and the northern Gulf of Mexico. The 2009 Northern Gulf Institute Annual Conference, May 20-21, 2009, Mobile, AL.

111) Mojzis, A., Redalje, D., Guo, L. and Cai, Y. 2009. Bacterioplankton abundances in the Bay of St Louis, MS., relative to environmental water quality. The 2009 Northern Gulf Institute Annual Conference, May 20-21, 2009 Mobile, AL.

112) Howden, S. D., C. Brunner, S. E. Lohrenz, L. Guo, D. G. Redalje, A. M. Shiller, K. M. Martin, K. Gundersen, M.-J. Shim, and A. Mojzis (2009), Monitoring and Assessment of Coastal and Marine Ecosystems in the Northern Gulf. NGI Workshop 19-21 May, Mobile, AL

113) Lohrenz, S. E., L. Guo, S. D. Howden, D. G. Redalje, A. M. Shiller, K. M. Martin, K. Gundersen, P. Sawant, M.-J. Shim, and A. Mojzis (2009), Overview of St. Louis Bay Characteristics and Environmental Conditions. GOMA Nutrient Criteria Research Framework Workshop 9-11 June, 2009 Stennis Space Center, MS.

114) Zhou, Z., Stolpe, B. and Guo, L. 2009. Composition and size spectra of colored dissolved organic matter in river waters as characterized by fluorescence EEM and flow field-flow fractionation techniques. The 2009 Mississippi Water Conference, August 5-7, 2009, Tunica, MS.

115) Guo, L., Zhou, Z., Stolpe, B., Cai, Y., Aiken, G. and Butler, K. 2009.Characterization of size fractionated dissolved organic matter from the lower Mississippi River. Eos Trans. 90(52), AGU, 2009 Fall Meet. (December 14-18, 2009, San Francisco, CA), Suppl. Abstract#:B43A-0342.

116) Stolpe, B., Guo, L., and Shiller, A.M. 2009. Characterization of Colloidal Iron-binding Organic Matter in Marine Waters. Eos Trans. 90(52), AGU, 2009 Fall Meet. (December 14-18, 2009, San Francisco, CA), Suppl. Abstract#OS23A-1177.

Year 2010 (25)

117) Lin, P. and Guo, L. 2010. Dynamics of phosphorus in the Bay of Saint Louis estuary. Mississippi Academy of Sciences Annual Meeting, February 10-12, 2010, Hattiesburg, MS.

118) Cai, Y., Guo, L., Wang, X., Mojzis, A. K., and Redalje, D.G. 2010. The source and distribution of dissolved and particulate organic matter in the Bay of St. Louis, Mississippi. The 2010 Ocean Science Meeting, February 22-26, 2010, Portland, OR, Abstract #: IT45B-04.

119) Stolpe, B., Guo, L., Shiller, A.M., Zhou, Z., and Lovko, V. 2010. Sources and Size Spectra of Fluorescent Colloidal Organic Matter in Coastal Seawater, as Revealed by Field-Flow Fractionation. The 2010 Ocean Science Meeting, February 22-26, 2010, Portland, OR, Abstract#: CO25A-30.

120) Guo, L., Tanaka, T., Gueguen, C., Chen, M. and Sun, M.Y. 2010. Stable carbon and nitrogen isotopic composition of suspended particulate organic matter from the western Arctic Ocean. The 2010 Ocean Science Meeting, February 22-26, 2010, Portland, OR, Abstract #: CO41A-06.

121)    Zhou, Z. and Guo, L. 2010. Variations in optical properties of dissolved organic matter along a salinity gradient in the Bay of St. Louis estuary. Presentation at the 2010 Northern Gulf Institute Annual Conference, May 18-20, 2010, Mobile, AL.

122)    Guo, L. and P. Lin. 2010. Variations in chemical and phase speciation of phosphorus during estuarine mixing in the Bay of Saint Louis. Presentation at the 2010 Northern Gulf Institute Annual Conference, May 18-20, 2010, Mobile, AL.

123)    Mitra, K. and Guo, L. 2010. Distributions of carbohydrates between dissolved and particulate phases during estuarine mixing in the Mississippi River plume. Presentation at the 2010 Northern Gulf Institute Annual Conference, May 18-20, 2010, Mobile, AL.

124)    Lee, Z.P., Guo, L., Huang, C., Lubac, B. and Ko, D. 2010. White patch in the Northern Gulf of Mexico: An observation from ocean color imageries. Presentation at the 2010 Northern Gulf Institute Annual Conference, May 18-20, 2010, Mobile, AL.

125)    Zhou, Z. and Guo, L. 2010. Variations in composition and size of dissolved and colloidal organic matter in the Bay of Saint Louis estuary. Proceedings of 2010 Goldschmidt Conference in Knoxville, Tennessee, June 13-18, 2010, Geochim. Cosmochim. Acta, 74 (12A), suppl., A1231.

126)    Guo, L. and Lin, P. 2010. Partitioning and transformation of phosphorus between dissolved, colloidal and particulate phases in the Bay of Saint Louis. Proceedings of 2010 Goldschmidt Conference in Knoxville, Tennessee, June 13-18, 2010, Geochim. Cosmochim. Acta, 74 (12A), suppl. A365.

127)    Stolpe, B., Guo, L., and Shiller, A.M. 2010. Nanoscale Colloidal Iron-Binding Organic Matter in Marine Waters. Proceedings of 2010 Goldschmidt Conference in Knoxville, Tennessee, June 13-18, 2010, Geochim. Cosmochim. Acta, 74 (12A), suppl., A996.

128)    Guo, L., Cai, Y., Lohrenz, S.E., You, C. and Cai, W.-J. 2010. Radiocarbon composition and fluxes of dissolved inorganic carbon from the lower Mississippi River. Western Pacific Geophysics Meeting, June 22-25, 2010, Taipei, Taiwan, Abstract #: OS54A-02.

129)    Santschi, P.H., Xu, C., Hung, C.-C., Zhang, S., Schwehr, K,A., Guo, L.D., Gong, G.-C., Quigg, A., Long, R., Pinckney, J., Duan, S.W., Amon, R., and Wei, C.L 2010. Controls of Th-234 removal from the oligotrophic ocean by polyuronic acids and modified by microbial activity. 2010 Western Pacific Geophysics Meeting, June 22-25, 2010, Taipei, Taiwan, Abstract #: OS54A-04.

130)    Hung, C.-C., Xu, C., Santschi, P. H., Zhang, S., Schwehr, K.A., Quigg, A., Pinckney, J., Long, R., Guo, L., Gong, G.-C. and Wei, C.-L 2010. Comparative evaluation of sediment-trap and 234Th-derived POC fluxes from the upper oligotrophic waters in the Gulf of Mexico and the subtropical northwestern Pacific Ocean. Western Pacific Geophysics Meeting, June 22-25, 2010, Taipei, Taiwan, Abstract #: OS54A-03.

131)    Guo, L. 2010. Sources and transport of organic carbon in the western Arctic Ocean. Presentation in the 2010 Western Pacific Geophysics Meeting, June 22-25, 2010, Taipei, Taiwan, Abstract #: OS33C-235.

132)    Chen, M,, Ma, Q., Guo, L., Qiu Y., Li Y., Yang, W.F., 2010. Importance of lateral transport on 210Pb budget in the eastern Chukchi Sea during summer 2003. 2010 Western Pacific Geophysics Meeting, June 22-25, 2010, Taipei, Taiwan, Abstract #: OS44B-06.

133)    Zhang, R., Chen, M., Guo, L., Ma, Q., Cao, J., Qiu, Y., Li, Y. 2010. Variations in the isotopic composition of particulate organic carbon and their relation with carbon dynamics in the western Arctic Ocean. 2010 Western Pacific Geophysics Meeting, June 22-25, 2010, Taipei, Taiwan, Abstract #: OS33C-232.

134)    Lee, Z., Huang, C., Lubac, B., Guo, L., Ko, D., Lohrenz, S.E. and Gould, R. 2010. Characterization of suspended particulates in the Northern Gulf of Mexico using ocean color remote sensing. 2010 Ocean Optics Conference, Sept27-October 01, 2010, Anchorage, AK.

135)    Zhou, Z., Guo, L., Shiller, A.M. and Lohrenz, S.E. 2010. Characterization of oil and dispersant in the northern Gulf of Mexico using fluorescence EEM and size fractionation techniques. Oil Spill conference in New Orleans, sponsored by NSF and Louisiana Board of Regents, November 1-2, 2010, New Orleans, LA..

136)    Mitra, K., Zhengzhen Zhou, and Guo, L. 2010. Variations in the partitioning of carbohydrates between dissolved and particulate phases in the Bay of St. Louis. The 2010 Alabama-Mississippi Bays & Bayous Symposium, December 1-2, 2010. Mobile, AL.

137)    Guo, L. Carbon and nutrient speciation in river waters along a human impact gradient in the Louisiana-Mississippi Gulf Coast. The 2010 Alabama-Mississippi Bays & Bayous Symposium, December 1-2, 2010. Mobile, AL.

138)    Zhou, Z., Guo, L., Shiller, A.M. and Lohrenz, S.E. 2010. Influence of oil and dispersant on optical properties of dissolved organic matter in the Mississippi Sound/Bight. The 2010 Alabama-Mississippi Bays & Bayous Symposium, December 1-2, 2010. Mobile, AL

139)    Guo, L. 2010. Isotopic Composition and Export Fluxes of Organic Carbon Species from the Lower Mississippi River. Invited presentation at the 2010 AGU Fall Meeting, San Francisco, CA, December 13-17, 2010., abstract # OS22A-01

140)    Guo, L. Zhou, Z., Shiller A.M. and Lohrenz S.E. 2010. Optical characterization of Crude Oils and Dispersant Used in the Northern Gulf of Mexico by Fluorescence EEM Techniques. Presentation at the 2010 AGU Fall Meeting, San Francisco, CA, December 13-17, 2010, Abstract # OS33B-1471.

141)    Shiller, AM, Shim, MJ, Guo, LD, Bianchi, TS, Smith, R. and Duan, S. 2010. Hurricane Katrina Impact on Water Quality in the East Pearl River, Mississippi. Presentation at the 2010 AGU Fall Meeting, San Francisco, CA, December 13-17, 2010, abstract # H53F-1101.

Year 2011 (13)

142)          Zhou, Z., He, H., Guo, L. and Lee, Z. 2011. Spatial and temporal variations in optical properties of CDOM in Lake Pontchartrain. Presentation at the 2011 NGI annual meeting, May 17-19, 2011, Mobile, AL.

143)          He, H. and Guo, L. 2011. Spatial and Temporal variations in nutrient species in Lake Pontchartrain. Presentation at the 2011 NGI annual meeting, May 17-19, 2011, Mobile, AL.

144)          Yang, W., He, H and Guo, L. 2011. Interannual variations and export fluxes of biogenic silica from the Mississippi River. Presentation at the 2011 NGI annual meeting, May 17-19, 2011, Mobile, AL.

145)          Guo, L., Zhou, Z., Shiller, A.M., Lohrenz, S., Asper, V.L. and Osburn, C.L. 2011. Characterization of oil components from Deepwater Horizon oil spill in the northern Gulf of Mexico using fluorescence EEMs and parallel factor analysis. Presentation at the 2011 NGI annual meeting, May 17-19, 2011, Mobile, AL.

146)          Lee, Z., Dong, Q., Huang, C., Zhou, Z. and Guo, L. 2011, Spatial variation and temporal trend of water quality in the northern Gulf of Mexico. Presentation at the 2011 NGI annual meeting, May 17-19, 2011, Mobile, AL.

147)          Guo, L., He, H, and Zhou Z. 2011. Variations in nutrient speciation, optical properties and carbon dynamics in Lake Pontchartrain, southeastern Louisiana. Presentation at the 2011 IPACES Meeting, July 7-9, 2011, Guiyang, China.

148)          Zhou, Z., Guo, L., He, H. and Shiller, A.M. 2011. Optical properties of DOM from the Gulf of Mexico after the Deepwater Horizon oil spill. Presentation at the "Deepwater Horizon Oil Spill Principal Investigator One Year Update Workshop" October 25-26, 2011 at the Sirata Beach Resort and Conference Center, St. Petersburg, FL.

149)          Guo, L. and Zhou, Z. 2011. Variations in fluorescent DOM components during laboratory degradation of Macondo crude oil. “Deepwater Horizon Oil Spill Principal Investigator One Year Update Workshop" October 25-26, 2011 at the Sirata Beach Resort and Conference Center, St. Petersburg, FL.

150)          Bauer, JE, Guo, L, Perkey, DW, Raymond, P, Bianchi, TS, Grottoli, AG, Matsui,Y. 2011. Divergent Radiocarbon Age Distributions of Carbon Pools in a Major Temperate River: Implications for Sources, Reactivity, and Land-Ocean Exchanges. 2011 AGU Fall Meeting, San Francisco, CA, December 5-9, 2011, abstract # B32C-05.

151)          Guo, L and Macdonald, RW. 2011. Age and sources of organic carbon transported in northern high latitude rivers. 2011 AGU Fall Meeting, San Francisco, CA, December 5-9, 2011, abstract # B33D-0483.

152)          Zhou, Z., He, H. and Guo, L. 2011. Characterization of chromophoric and fluorescent DOM in the lower Mississippi River 2011 AGU Fall Meeting, San Francisco, CA, December 5-9, 2011, abstract # B33D-0501.

153)          He, H, Guo, L. and Liu, C. 2011. Distribution and variations in inorganic and organic nutrients in Lake Pontchartrain. 2011 AGU Fall Meeting, San Francisco, CA, December 5-9, 2011, abstract # H43F-1278.

154)          Yang, W., Guo, L. Chuang, C.Y. and Santschi, PH. 2011. Sorption characteristics of 210Pb, 210Po and 7Be onto microparticle surfaces and the effects of macromolecular organic matter. 2011 AGU Fall Meeting, San Francisco, CA, December 5-9, 2011, abstract# OS31A-1625.

Year 2012

155)          Zhou, Z., Guo, L. and He, H. 2012. UV and fluorescence characteristics of DOM from the Gulf of Mexico five months after the Deepwater Horizon oil spill. The 2012 Ocean Science Meeting, February 22-24, 2012, Salt Lake City, UT (Abstract#).

156)          Yang, W. and Guo, L. 2012. Depositional fluxes and residence time of atmospheric radioiodine (I-131) from Fukushima accident. The 2012 Ocean Science Meeting, February 22-24, 2012, Salt Lake City, UT (Abstract#).

157)          Guo, L., Chen, M., Roberts, K.A. and Santschi, P.H. 2012. Redox control of the partitioning and scavenging of Fe(II,III) and Pa(IV, V) in seawater: Role of natural organic matter. The 2012 Ocean Science Meeting, February 22-24, 2012, Salt Lake City, UT (Abstract#).

158)          Guo, L., Yang, W. Chuang, C.Y. and Santschi, P. 2012. Fractionation of 210Pb, 210Po and 7Be during their interactions with inorganic and organic nanoparticles in seawater.

159)           

 

D: Thesis

  • Ph.D. thesis: Cycling of dissolved and colloidal organic matter in oceanic environments as revealed by carbon (13C and 14C) and thorium (230Th and 234Th) isotopes (Advisor: Professor Peter H. Santschi). Texas A & M University, College Station, Texas, 230pp.
  • M.S. thesis:  Formation of authigenic silicate and its relation to the removal of trace elements in the sea (Advisor: Profesor Faxi Li).  Xiamen University, Xiamen 361005, China.

Home

UWM

USM

UAF

Texas A&M

Xiamen Univ

This page Copyright 2000-2012. Laodong Guo.