海洋科学Issue(9)：77-81,5.
淡水和海水环境下沉积物搬运过程碳释放通量的模拟研究
A simulation of carbon fluxes from sediment transportation in freshwater and seawater
摘要
Abstract
Using laboratory physical simulation experiment we investigated the carbon release fluxes in the Changjiang River sediment in the seawater environment and the freshwater environment, respectively. The results showed that the atmospheric CO2 came from freshwater and seawater, and the release fluxes of CO2 in freshwater were higher than that in seawater. In both these two environments, the release fluxes of CH4 were small, at the same time, the uptake fluxes of CH4 were small, too. By comparison of the carbon fluxes in these two environments, we found that the variation of Eh values was possibly a most important factor attributing to the difference in fluxes of CO2. On the contrary, the variation of pH values possibly had little influence on the difference of CO2 fluxes . The concrete reasons which caused the difference in greenhouse gas fluxes in these two environments should be further studied. The results of laboratory physical simulation experiment, are very helpful to understanding of the greenhouse effect of the reservoir in the Changjiang River basin and provide a scientific basis for emission reduction, and provide theoretical reference for clean water and electricity energy development in China.关键词
淡水和海水环境/CO2和CH4通量/模拟实验Key words
freshwater and marine environments/CO2 and CH4 fluxes/simulation experiment分类
资源环境引用本文复制引用
彭峰,唐梅,刘昱恒..淡水和海水环境下沉积物搬运过程碳释放通量的模拟研究[J].海洋科学,2013,(9):77-81,5.基金项目
国家重点基础研究发展计划(973)资助项目(2010CB955904) （973）
