Major Ion Chemistry and Influencing Factors of Rivers in Poyang Lake Basin
详细信息
- 责任者：Zhai Daxing (School of Earth Sciences and Resources ; China University of Geosciences (Beijing) ; Beijing 100083 ; China) ; Yang Zhongfang
- 刊名：Earth Science Frontiers
- 出版年：2012
- 卷期：19(1)
- 关键词：水化学 ; hydrochemistry ; 溶解度 ; solubility ; 鄱阳湖 ; Poyang Lake
- 页码：p.264-276
- 图表：7 illus., 7 tables, 49 refs.
- 分类号：1701
- 出版序号：20130516
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
In the hypergene earth system, the chemical weathering is the predominant driving force of a chemical cycle and it affects the compositions of rock, water, soil and atmosphere greatly. Dissolved materials mainly derived from chemical weathering of rocks in river basin, with the combinations of precipitation and the impact of human activities. In this paper, the characteristics of chemical compositions of the rivers in Poyang Lake drainage basin and their influencing factors are studied based on the systematic sample collections and chemical composition analysis of river water samples from this area. The results indicate that the Cl-, SO2-4 ion of river water have significantly increased and gradually acidified in the study area in comparison with those in the eighties of the last century.
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