藏中矿区表层土壤重金属污染评价  

Evaluation of Heavy Metals Pollution of Surface Soil in Central Tibet Mining Area

作　　者：敬久旺[1] 赵玉红[2] 张涪平[3,4] 李成芳[3] 曹凑贵[3] 刘宗磊[4] 

机构地区：[1]西藏农牧学院公共教学部,西藏林芝860000 [2]西藏农牧学院动物科学学院,西藏林芝860000 [3]农业部华中作物生理生态与栽培重点开放试验室华中农业大学植物科技学院,湖北武汉430070 [4]西藏农牧学院资源与环境学院,西藏林芝860000

出　　处：《贵州农业科学》2011年第7期126-128,共3页Guizhou Agricultural Sciences

基　　金："十一五"国家科技支撑计划重点项目"藏中矿区生态恢复研究与示范"(2007BAC06B05);国家自然基金项目"西藏高原退化草地自然恢复潜力研究"(30860061);农业部公益性行业专项"西藏草地承载力与家畜配置"(20090360);西藏大学农牧学院"211工程"重点学科高原生态学'建设项目"色季拉山高山草甸植物分布格局及环境解释"[XZA-211(3)-071012-01]

摘　　要：为了解藏中矿区土壤中重金属的分布情况和污染现状,测定了西藏中部典型矿区周围表层土壤中重金属元素的含量,运用单因子和综合因子指数法评价了土壤中重金属污染状况。结果表明:矿区周围土壤中Cu、Zn和Cd污染严重,Pb基本无污染。污染程度依次为Cd>Cu>Zn>Pb,且4种元素存在复合污染。The heavy metal concentrations（Cu,Zn,Cd and Pb） in central Tibet mining area were measured and the heavy metal degrees of pollution were evaluated with single-facter pollution index and comprehensive pollution index to grasp the heavy metal of distribution and pollution in soil.The results showed that the pollution degrees of Cu,Zn and Cr were heavy except Pb,the degrees of pollution were in the sequence of CdCuZnPb,and there was combined pollution among the four heavy metals.

关 键 词：西藏中部 矿区 重金属 土壤污染 

分 类 号：S157.2[农业科学—土壤学]