河南省农业科学院机构知识库

Heavy Metal Contamination in a Soil-Rice Ecosystem in the Vicinity of Abandoned Rural Unsanitary Landfill

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文献类型：外文期刊

作者： Guan, Yidong ¹ ; La, Gui-xiao ³ ; Cao, Jie ⁴ ; Du, Yehong ² ; Zhang, Zhiyuan ² ; Ge, Chuan ² ; Luo, Ancheng ² ;

作者机构： 1.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing 210044, Jiangsu, Peoples R China

2.Zhejiang Univ, Coll Environm & Resource Sci, Hangzhou 310029, Zhejiang, Peoples R China

3.Henan Acad Agr Sci, Ind Crop Res Inst, Zhengzhou 450002, Peoples R China

4.Zhejiang Tobacco Co, Shaoxing Co, Shaoxing 312000, Peoples R China

关键词： Rural unsanitary landfill;Heavy metals;Soil;Rice;Leachate.

期刊名称：ASIAN JOURNAL OF CHEMISTRY （影响因子：0.355；五年影响因子：0.293 ）

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收录情况： SCI

摘要： The ecosystem adjacent to the abandoned rural unsanitary landfill has been contaminated. The soil cadmium was higher than the maximum allowable content of agricultural soil. There was a remarkable bioaccumulation trend of heavy metals in the rice organs. Chromium and lead contents in rice grain were much higher than the threshold levels, 2.9-6.7 folds and 1.0-1.5 folds of the legislation limits, respectively. Linear correlation analysis showed that the slightly alkaline leachate from the unsanitary landfill was oae of the main factors causing the higher soil pH and then affecting the absorption of rice on the cadmium.

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