| The Influence of Element Diffusion at the Sediment—Water Interface on the Basic Chemical Composition of Overlying Water Mass in Lake Lugu,China |
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| 引用本文： | 吴丰昌,万国江,等.The Influence of Element Diffusion at the Sediment—Water Interface on the Basic Chemical Composition of Overlying Water Mass in Lake Lugu,China[J].中国地球化学学报,1996,15(3):285-288. |
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| 作者姓名： | 吴丰昌 万国江 |
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| 作者单位： | StateKeyLab.ofEnvironmentalGeochemistry,InstituteofGeochemistry,ChineseAcademyofSciences,Guiyang,5500 |
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| 摘 要： | Little work has been done on the influence of seiments on the basic chemical composition of overlying water mass.This paper deals with the vertical profile of the basic constituents such as Ca^ ,K^ ,Na^ ,and HCO3^-,as well as of pH in the overlying water mass and sediment porewater of Lake Lugu-a semi-closed,deep lake in Yunnan Province.The reand sediment porewater of Lake Lugu- a semi-closed,deep lake in Yunnan Province.The results revealed that those basic constituents may diffuse and transport from bottom sediments to overlying water mass through porewater.In the paper are also quantitatively evaluated the diffusive fluxes and the extent of their influence on overlying water mass,indicating that the lake sediment-water interface diffusion plays an important role in controlling the basic chemical composition of water in the whole lake.
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| 关 键 词： | 元素扩散 沉积物－水界面 湖泊 云南 PH值 表面化学 泸沽湖 钙离子 钾离子 水团 |
The influence of element diffusion at the sediment-water interface on the basic chemical composition of overlying water mass in Lake Lugu,China |
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| Wu Fengchang,Wan Guojiang,Cai Yurong.The influence of element diffusion at the sediment-water interface on the basic chemical composition of overlying water mass in Lake Lugu,China[J].Chinese Journal of Geochemistry,1996,15(3):285-288. |
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| Authors: | Wu Fengchang Wan Guojiang Cai Yurong |
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| Institution: | (1) State Key Lab. of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550002 Guiyang |
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| Abstract: | Little work has been done on the influence of sediments on the basic chemical composition of overlying water mass. This paper
deals with the vertical profile of the basic constituents such as Ca2+, K+, Na+, and HCO
3
−
, as well as of pH in the overlying water mass and sediment porewater of Lake Lugu—a semi-closed, deep lake in Yunnan Province.
The results revealed that those basic constituents may diffuse and transport from bottom sediments to overlying water mass
through porewater. In the paper are also quantitatively evaluated the diffusive fluxes and the extent of their influence on
overlying water mass, indicating that the lake sediment-water interface diffusion plays an important role in controlling the
basic chemical composition of water in the whole lake.
This project was supported by the National Natural Science Foundation of China. |
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| Keywords: | diffusion sediment-water interface Lake Lugu Yunnan Province |
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