Title: Analysis and Evaluation on Soil Environmental Quality of Peanut Farmland in Linyi
Abstract: The contents of heavy metal elements Cd,Hg,As,Pb,Cr,Cu,Zn and Ni in the soil of peanut farmlands in Linyi city,Shandong province were investigated,and the soil environmental quality was evaluated by the methods of single quality index and comprehensive quality index.The results showed that the average contents of all the tested heavy metal elements in the soil were under the threshold prescribed by Farmland environmental quality evaluation standards for edible agricultural products(HJ332─2006).The environmental quality of the soil was classified as the first class,belonging to clean level and fitting for the planting of non-environmental pollution peanut.But the contents of some heavy metal elements in several areas were beyond the limit values,the rate of soil samples in which Cr content was beyond the limit value was 4.76%,and that with over-standard Ni content was 19.05%.The average contents of the tested eight heavy metal elements(except Cd and As) were higher than the natural background values of agricultural brown soil in Shandong,which indicated there was a certain accumulation of heavy metal elements in the soil.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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