| 土壤—大宗农产品中Cd的分配及其环境意义 |
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| 引用本文： | 刘应平,阚泽忠,金立新,李忠惠. 土壤—大宗农产品中Cd的分配及其环境意义[J]. 现代地质, 2009, 23(2) |
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| 作者姓名： | 刘应平 阚泽忠 金立新 李忠惠 |
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| 作者单位： | 1. 成都理工大学,地球科学学院,四川,成都,610059;四川省地质调查院,四川,成都,610081
2. 四川省地质调查院,四川,成都,610081 |
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| 基金项目： | 中国地质调查局国土资源大调查项目 |
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| 摘 要： | 基于多目标地球化学调查成果,以土地生态效应为重点,研究成都经济区大宗农产品——水稻、玉米、小麦籽实中Cd元素的含量,同时讨论了农产品籽实与土壤中Cd含量的关系。结果表明大宗农产品籽实中Cd元素的累积状况为小麦>水稻>玉米;土壤酸碱度(pH值)环境对土壤中Cd元素的转移和在农作物籽实中积累影响较大,酸性土壤中Cd元素更容易进入植物体并积累下来,从而形成环境生态危害。
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| 关 键 词： | 大宗农产品 农业地质 地球化学 成都经济区 生态效应 |
The Study of Cadmium Assignment in Soil-Large Amount Crop and Its Environmental Significance |
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| LIU Ying-ping,KAN Ze-zhong,JIN Li-xin,LI Zhong-hui. The Study of Cadmium Assignment in Soil-Large Amount Crop and Its Environmental Significance[J]. Geoscience of Geosciences, 2009, 23(2) |
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| Authors: | LIU Ying-ping KAN Ze-zhong JIN Li-xin LI Zhong-hui |
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| Abstract: | Based on the Chengdu economic zone multi-purpose geochemical survey results,the content of the Cd element in the staple crops-rice,corn and wheat seed and the Cd in soil are discussed.The results showed that the contents of Cd in those are wheat>rice> corn.pH in soil has great influence on the transfer of Cd element in the soil and accumulation of Cd element in the staple crops.Cd element in acid soil is feasible to enter plants and accumultes there,so it is harmful to environmental ecology. |
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| Keywords: | large amount crop agricultural geology geochemistry Chengdu economic zone ecological effect |
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