辽宁省部分花生产区土壤重金属污染评价

Evaluation of Soil Heavy Metal Pollution in the Part of Peanut Producing Areas of Liaoning Province

通过对辽宁部分花生产区土壤多点随机取样,经室内分析后分别采用单因子污染指数法和综合污染指数法对土壤重金属污染状况进行评价。结果表明:辽宁花生主产区土壤存在重金属污染,单因子污染指数法评价结果为各产区均为重度污染,污染物主要为Cd;综合污染指数法评价结果为阜新、铁岭地区为中度污染,锦州、葫芦岛地区为重度污染,主要污染物为镉。

This research studied the effects of soil heavy metal pollution on peanut production and quality and evaluated its pollution status by single factor pollution index and synthetic pollution index evaluation method, respectively, through laboratory analysis and GPS fixed-point sampling. The results show： there is pollution of soil heavy metals in peanut producing regions of Liaoning province. The evaluation by single factor pollution index for five regions shown a heavily pollution where mainly polluted by Cd ; The evaluation by comprehensive pollution index for Fuxin, Tieling are moderate polluted, and for Jinzhou, Huludao are heavily pollution where mainly polluted by Cd too.