The Fluxes and Sources of Carbon Dioxide in the Estuarine Waters of Georgia
Wei-Jun Cai and Yongchen Wang (Dept of Marine Sciences, Univ of Georgia, Athens,
Georgia Sea Grant College Program (R/WQ-3)
- 2/28/98 (complete)
Identifying the sources and quantifying fluxes of carbon dioxide and O2 are
important goals in the study of CO2 dynamics and biogeochemistry in coastal
waters. The specific aims of this project were --
- to examine the
hypothesis that the main sources of C in these estuaries are within the marshes
and are benthic-related
- to understand
how the flux of C and O are coupled in the low salinity marsh-estuary complex
Respiration in intertidal marshes was identified as the critical factor
in controlling C and Oxygen mass balance in estuaries. When there is a large
marsh-to-river area, O2 will be low and pCO2 will be high (such as in the Satilla
and St. Marys Rivers). When there is a small marsh-to-river area, O2 will be
high and pCO2 will be relatively low (such as in the Altamaha and Savannah Rivers).
Cai, W.-J. and Wang, Y. 1998. The Chemistry, Fluxes and Sources of Carbon Dioxide
in the Estuarine Waters of the Satilla and Altamaha Rivers, Georgia. Limnol
& Oceanogr. (in press, June 98 issue).
Cai W.-J., L. R. Pomeroy, M. A. Moran and Y. Wang 1998. Oxygen and Carbon
Dioxide Mass Balance of the Estuarine/Intertidal Marsh Complex of Five Rivers
in the Southeastern U.S. submitted to Limnol & Oceanogr.