Laodong GuoDr. Laodong Guo

Chemical Oceanography

Associate Professor
Department of Marine Science
1020 Balch Blvd.
Stennis Space Center, MS 39529-9904
phone: (228) 688-1176
fax: 228-688-1121
laodong.guo@usm.edu

For more information, please visit my personal website.

Education

  • Ph.D. Chemical Oceanography, Texas A&M University, 1995

Research Interests

  • Biogeochemical cycling of natural organic carbon and nutrients in aquatic
    systems
  • Separation, characterization and bioavailability of aquatic colloids and
    nanoparticles
  • Controls of colloidal organic matter and biopolymers on the scavenging of
    Th(IV), Pa(IV, V), Po(-II, III, IV) and Fe(II, III) in the ocean
  • Biogeochemical consequences of climate and environmental changes in the
    Arctic region

Courses

  • MAR 541 - Marine Chemistry (4 credit hours, Fall 2008 for Dr. Shiller)
  • MAR 651 - Marine Organic Geochemistry (3 credit hours)
  • MAR 683 - Isotope Biogeochemistry (3 credit hours)
  • MAR 689 - Seminar in Proposal Writing (with Dr. Yeager, 1 credit hour)
  • MAR 682/683: Sp Topic: Aquatic colloids and nanoparticles (with Dr. Orcutt)

Selected Publications

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

Guo, L., Macdonald, R. W. 2006. Source and transport of terrigenous organic matter in the upperYukon River: evidence from isotope (13C, 14C and
15N) composition of dissolved, colloidal and particulate phases. Global Biogeochemical Cycles, 20(2), GB2011, doi:10.1029/2005GB002593.

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.

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

Guo, L., Tanaka, N., Schell, D. M., Santschi, P. H. 2003. Nitrogen and carbon isotopic composition of high-molecular-weight dissolved organic matter in marine environments. Marine Ecology Progress Series, 252: 51-60

Guo, L., Chen, M., Guéguen, C. 2002. Control of Pa/Th ratio by particulate chemical composition in the ocean. Geophysical Research Letters, 29 (20): art no. 1961, doi: 10.1029/2002GL015666.

Guo, L., Hunt, B. J., Santschi, P. H., Ray, S. 2001. Effect of dissolved organic matter on the metal uptake by American oysters. Environmental Science and Technology, 35(5): 885-893.

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

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

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

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