期刊
ENVIRONMENTAL MONITORING AND ASSESSMENT
卷 156, 期 1-4, 页码 91-98出版社
SPRINGER
DOI: 10.1007/s10661-008-0465-5
关键词
Alluvial deposits; Behavior and availability of heavy metals; Characteristics of coastal soils; Correlation analysis; Unsuited human activities
资金
- Municipal Science and Technology Committee of Shanghai, China [02DJ14046]
- Municipal Agriculture Committee of Shanghai, China [2001-5-18]
An investigation of the behavior and availability of heavy metals (HMs), i.e., Cu, Zn, Ni, Pb, Cr, and Cd, based on the analysis of correlation between HMs and physical and chemical properties of coastal soils developed from alluvial deposits in Shanghai, China, has been conducted, in order to reveal the effect of the soil formation and development and the unsuited human activities on the activities and mobility of HMs in agricultural soils. The results showed that (1) the soils still meet the needs of plant growth due to the moderate fertility with a soil texture of silty loam although the content of organic matters is lower, (2) total heavy metal content had a increase trend from the inland area to the coastal area, indicating the impact of alluvial deposits related to the soil formation on the distribution of HMs; (3) a significant positive correlation was found between HMs and some soil properties (i.e., clay content, cation exchange capacity, organic matters, total Phosphorous content, etc.), indicating that the regulation of these properties could give some great effect on the behavior and availability of HMs; (4) the positive correlation among Cu, Zn, Ni, and Cd, and between Pb and Cr is very significant, suggesting the most similar, if not the same, origins of HMs; These findings are helpful to the soil remediation, fertility adjustment, and plant cultivation.
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