Heavy metal contamination in soils of greenhouse vegetable production systems in a cold region of China

作     者：Pin Lv Zimin Wei Zhimin Yu Jizhou Zhang Limin Wang 

作者机构：College of Life ScienceNortheast Agricultural UniversityHarbin 150030China Institute of Natural Resources and EcologyHeilongjiang Academy of SciencesHarbin 150040China 

出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)

年 卷 期：2019年第12卷第2期

页      面：98-102页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

基　　金：This work was supported by the Science and Technology Research Project of Heilongjiang Province,China(GC12C205) the Scientific Foundation of Heilongjiang Academics of Sciences 

主　　题：heavy metal contamination cold region greenhouse vegetable production(GVP) distribution ecological risk food quality food safety 

摘      要：Heavy metal(HM)contamination in soils of greenhouse vegetable production(GVP)systems has drawn increasing attention in terms of food *** the present study,64 surface soils were sampled,and the concentrations of select HMs were determined using atomic absorption *** results showed that the concentrations of cadmium(Cd),lead(Pb),zinc(Zn),copper(Cu),nickel(Ni)and chromium(Cr)in the soils were(0.2±0.2)mg/kg,(26.5±8.4)mg/kg,(101.4±43.2)mg/kg,(29.1±8.6)mg/kg,(24.5±3.3)mg/kg,and(56.5±6.3)mg/kg,and the corresponding accumulation index(AI)values were 2.30,1.10,1.43,1.45,1.07,and 0.97,*** spatial distribution of the HMs suggested that Cd pollution displays a fractionation effect,which may be related to the source of Cd and its *** concentration of Zn was significantly correlated with that of other HMs,implying that a comprehensive interactive effect might occur between Zn and other ***,the values of the potential ecological risk index(RI)ranged from 41.23 to 185.91,meaning that attention should be paid to HM contamination of GVP soils to ensure food quality and safety.