The Chemical Form Distribution Characteristics of Heavy Metal Zn in Soil and the Influence Factors in the Water-Level-Fluctuating Zone of the Three-Gorges Reservoir Area
详细信息
- 责任者：Wang Xiaoyang (Southwest University ; Chongqing 400715 ; China) ; Fu Wali
- 刊名：Earth and Environment
- 出版年：2011
- 卷期：39(1)
- 关键词：土壤污染 ; soil pollution ; 锌 ; zinc ; 长江三峡 ; Yangtze Three Gorgees
- 页码：p.85-90
- 图表：2 illus., 4 tables, 15 refs.
- 分类号：1800
- issnNo：ISSN1672-9250
- isbnNo：CN52-1139/P
摘要
This study is devoted to a tributary of the Xiaojiang Water-level-fluctuating Zone, which is located in the center of the Three-Gorges Reservoir area. By field sampling and laboratory analysis, this paper studied the heavy metal Zn in soil of this area and the speciation characteristics of its chemical form, and by using the correlational analysis method and stepwise method, the paper also discussed the factors affecting the chemical forms of the heavy metal. It is shown that the total contents, the acid soluble fraction, the reducible fraction, the oxidizable fraction and the residual fraction of Zn in the area are respectively 126.03 mg·kg-1, 3.60 mg·kg-1, 5.44 mg·kg-1, 10.59 mg·kg-1 and 106.40 mg·kg-1 on average, respectively.
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