摘要
通过模拟淹水过程,研究了淹水后三峡库区消落区主要类型土壤性质的变化,发现淹水后酸性土壤的pH值升高,碱性土壤的pH值降低,Eh在淹水初期都会降低。土壤中的Zn、Cu、Pb、Cd、Cr、Hg、As的含量都有不同程度的降低,其中Hg较为显著,而有效态的Zn、Cu、Pb、Cd、Fe和Mn的含量大部分呈增加趋势,但其变化规律不尽相同。
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.
出处
《水土保持学报》
CSCD
北大核心
2004年第6期120-123,共4页
Journal of Soil and Water Conservation
基金
重庆市科委重大(预研)项目(02-7418)
