title: [Spatial distribution of Cd, Pb, as contents in the farmland black soil in Jilin Province].
abstract: Spatial distribution and pattern of Cadmium (Cd), Lead (Pb) and Arsenic (As) contents in the farmland black soil in Jilin Province were analyzed using geostatistics methods. Result of semivariance fitness models showed that Pb content in soil was auto-correlated to a moderate degree while contents of Cd and As were auto-correlated to a low degree, respectively. Based on the results of semivariance analyses, distribution maps were generated using Kriging interpolation. The result showed that heavily Cd-contaminated site occurred mainly around the mine area, and the accumulation area for Pb appeared mostly in the suburb and roadsides, while in farmland of suburb and vicinity of coal mine the As content was higher.
authors.affiliation: Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, China. caohuicong@neigae.ac.cn
authors.forename: Hui-cong
authors.initials: HC
authors.lastname: Cao
authors.forename: Jin-da
authors.initials: JD
authors.lastname: Wang
authors.forename: Xue-lin
authors.initials: XL
authors.lastname: Zhang
mesh_terms: D001151:Arsenic / Q000032:analysis; D002104:Cadmium / Q000032:analysis*; D002681:China; D018556:Crops, Agricultural / Q000254:growth & development*; D007854:Lead / Q000032:analysis*; D008962:Models, Theoretical; D012987:Soil / Q000032:analysis; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D012987:Soil; D012989:Soil Pollutants; D002104:Cadmium; D007854:Lead; D001151:Arsenic