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[1]SONG Wei,CHEN Bai-ming,LIU Lin.Soil Heavy Metal Pollution of Cultivated Land in China[J].Research of Soil and Water Conservation,2013,20(02):293-298.

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Soil Heavy Metal Pollution of Cultivated Land in China

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 02 Page number: 293-298 Column: Public date: 2013-04-28

Title:: Soil Heavy Metal Pollution of Cultivated Land in China

Author(s):: SONG Wei¹, CHEN Bai-ming¹, LIU Lin^2,3; 1. Institute of Geographic and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;
2. School of Land Science and Technology, China University of Geosciences, Beijing 100083, China;
3. Shijiazhuang Engineering Technology School, Shijiazhuang 050061, China

Keywords:: soil pollution; heavy metal; cultivated land; pollution probability

CLC:: X825

DOI:: -

Abstract:: Based on the data collected from documents, a database of heavy metal pollution, involving in 138 of regions, in soils of cultivated land in China, was established to calculate the degree of heavy metal pollution of cultivated land in China according to the second grade value from the Standard of Soil Environmental Quality (No.GB15618—1995). The following conclusions can be drawn as: (1) the probability of heavy metal pollution in soils of cultivated in China was about 16.67%, implying that 1/6 of cultivated land in China may suffer from heavy metal pollution; (2) the proportions of pollution degrees ranked as clean, relative clean, light pollution, moderate pollution and severe pollution were 68.12%, 15.22%, 14.49%, 1.45% and 0.72% of the total area of cultivated land, respectively; (3) the pollution probability of Cd was about 25.20%, significantly exceeding pollution levels of the other heavy metals. Moreover, the heavy metal pollution of As and Pb occurred occasionally in cultivated land in China but pollution of Zn, Cr and Cu seldom happened; (4) cultivated lands in Liaoning, Hebei, Jiangsu, Guangdong, Shanxi, Hunan, Henan, Guizhou, Shaanxi, Yunnan, Chongqing, Xinjiang, Sichuan and Guangxi, especially for Liaoning and Shanxi, may be the key regions of heavy metal pollution.

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