新疆生产建设兵团第二师36团土壤8种元素环境质量及污染评价现状

发布时间：2018-11-15 11:34

【摘要】：基于新疆生产建设兵团第二师36团的土地质量地球化学调查数据,分析了8种土壤元素的含量特征,采用单因子指数评价法和内梅罗综合指数评价法对土壤环境质量进行评价。结果表明,土壤元素含量均值从高到低依次为:ZnCrNiCuPbAsCdHg,且所有元素含量均值均未超过新疆土壤背景值和土壤环境质量一级标准。新疆生产建设兵团第二师36团土壤环境质量良好,优于全国水平。土壤污染评价结果为8种土壤元素含量均超污染起始值,单项污染指数均值由高到低依次为:PbCrHgZnNiCuAsCd;内梅罗综合污染指数均值达到了土壤环境质量评价分级标准Ⅱ级,污染等级为警戒;不同土地利用类型下的内梅罗综合污染指数均值由高到低依次为:果园其他林地未利用土地灌木林地旱地。采用因子分析法分析8种土壤元素来源,结果表明,研究区8种土壤元素来源受人为活动和土壤条件两个因子控制。
[Abstract]:Based on the geochemistry survey data of land quality in the 36th regiment of the second Division of Xinjiang production and Construction Corps, the content characteristics of 8 soil elements were analyzed. The soil environmental quality was evaluated by single factor index evaluation method and Nemero comprehensive index evaluation method. The results showed that the average value of soil element content from high to low was ZnCrNiCuPbAsCdHg, and the mean value of all elements content did not exceed the soil background value and the first grade standard of soil environmental quality in Xinjiang. The soil environmental quality of the 36th regiment of the second Division of Xinjiang production and Construction Corps is good, which is superior to the national level. The results of soil pollution evaluation showed that the content of eight soil elements exceeded the initial value of soil pollution, and the average value of single pollution index was PbCrHgZnNiCuAsCd; from high to low. The average value of Nemero comprehensive pollution index reached the grade 鈪，

本文编号：2333196