Change of Soil Character after Flooding in Drawdown Area of Three Gorges Reservoir
Change of Soil Character after Flooding in Drawdown Area of Three Gorges Reservoir
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DOI：
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发表时间：
2004
影响因子：
3.9
通讯作者：
Zhang Jinyang;Wang Ding-yong;Shi Xiao-hong
中科院分区：
文献类型：
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作者：
Zhang Jinyang;Wang Ding-yong;Shi Xiao-hong
本文通过模拟洪水过程，研究了三峡水库消落区典型土壤洪水后性质的变化。结果表明,淹水后酸性土壤pH值升高,碱性土壤pH值降低,各类土壤的Eh均降低。 Zn、Cu、Pb、Cd、Cr、Hg、As含量均有不同程度下降，其中Hg下降幅度较大。有效态Zn、Cu、Pb、Cd、Fe、Mn含量大多呈增加趋势，但变化规律略有不同。
This paper studies the change of character of typical soils after flooding in the drawdown area of reservoir of Three Gorges through simulating flooding procedure. The results showed that pH value of acid soil increased,but pH of alkaline soil decreased after flooding,and Eh of all kinds of soil decreased. The content of Zn,Cu,Pb,Cd,Cr,Hg and As all decreased to different extent,especially,Hg decreased greatly. The content of available Zn、Cu、Pb、Cd、Fe and Mn has the trend to increase mostly,but their changing rules differed slightly.