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《Journal of Anhui Agricultural Sciences》 2008-05
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Preliminary Evaluation on Soil Cd Distribution Characters and Ecological Effect of Yangtze River Delta

QIN Wen et al(Faculty of Earth Science,China University of Geosciences,Wuhan,Hubei 430074)  
On the basis of the result of multitarget geochemical survey,distribution characters of soil Cd in Yangtze River delta was analyzed.Enrichment causations were discussed and theecological effect was preliminaryly evaluated.Result showed that the enrichment of soil Cd in Yangtze River delta was mainly in areas along the river and urban area.The main enrichment causation in areas along the river was Cd carried by alluvium matters.Human activites such as industrial dust fall were another impotrant causation of Cd enrichment.There was no significant correlation between Cd content in crops and that in soil.However,signicicant correlation occurred between crop Cd content and pH value.Different crops showed significant differences in Cd absorbency.
【Fund】: 国家专项调查工作项目(GZTR20060202);; 江苏省自然科学基金项目(BK2007006)
【CateGory Index】: S153
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