title: [Analysis of heavy metals distribution characteristics and pollution assessment in agricultural region soils of Huaihe basin].
abstract: By means of field sampling and laboratory analysis, the content distribution characteristics of Cd, Cr, Cu, Ni, Pb and Zn in agricultural region soils of Huaihe basin in Anhui province were analyzed. Assessment of heavy metal pollutions was conducted using enrichment factor, geoaccumulation index and potential ecological risk index. The results showed that the average mass fraction of Cd and Cu was 0.113 5 and 22.09 mg x kg(-1) respectively in the study area soil, which were above the background values 0.097 and 20.4 mg x kg(-1) in Anhui Province. The average mass fraction of other four heavy metals did not exceed the average values of Anhui Province. The results of the evaluations from geoaccumulation index and ecological risk assessment discovered that Cd is the strongest pollution metal among six heavy metals in the study area soil. For some samples of the study soil, Cd was slight risk for the ecosystem. The ecosystem risks caused by the other five heavy metals were not obviously for the sampling points. The entire study area soils were mid integrated potential ecological risk.
authors.forename: Xue
authors.initials: X
authors.lastname: Xiao
authors.forename: Nan-Jing
authors.initials: NJ
authors.lastname: Zhao
authors.forename: Jing
authors.initials: J
authors.lastname: Yuan
authors.forename: Ming-Jun
authors.initials: MJ
authors.lastname: Ma
authors.forename: Li
authors.initials: L
authors.lastname: Fang
authors.forename: Yin
authors.initials: Y
authors.lastname: Wang
authors.forename: De-Shuo
authors.initials: DS
authors.lastname: Meng
authors.forename: Yang
authors.initials: Y
authors.lastname: Yu
authors.forename: Jie
authors.initials: J
authors.lastname: Tang
authors.forename: Xiao-Ling
authors.initials: XL
authors.lastname: Zhang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Dai
authors.forename: Yu-Jun
authors.initials: YJ
authors.lastname: Zhang
authors.forename: Jian-Guo
authors.initials: JG
authors.lastname: Liu
authors.forename: Wen-Qing
authors.initials: WQ
authors.lastname: Liu
mesh_terms: D000383:Agriculture; D002681:China; D017753:Ecosystem; D004784:Environmental Monitoring; D019216:Metals, Heavy / Q000032:analysis*; D018570:Risk Assessment; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D012987:Soil; D012989:Soil Pollutants