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当前位置: 首页 > 文章 > 太湖流域土壤重金属污染评价与来源分析 农业机械学报 2017 (1) 247-253
Position: Home > Articles > Pollution Assessment and Source Analysis of Soil Heavy Metals in Taihu Lake Basin Transactions of the Chinese Society for Agricultural Machinery 2017 (1) 247-253

太湖流域土壤重金属污染评价与来源分析

作  者：
李想;江雪昕;高红菊
单  位：
中国农业大学信息与电气工程学院;北京大学软件与微电子学院
关键词：
太湖流域;土壤重金属;环境质量评价;因子分析
摘  要：
选取太湖流域为研究区,利用单因子污染指数法和内梅罗综合污染指数法对其土壤重金属污染情况进行了评价,并采用描述性统计分析、Pearson相关分析和因子分析方法对其土壤重金属的来源进行了分析。研究表明,太湖流域土壤重金属综合污染等级均处于安全至中度污染之间,Hg、Cu和Zn对其土壤环境质量造成的危害较大,其中Hg的影响最为深刻,起到决定作用,Cr是唯一未对其土壤环境质量造成危害的元素;由重金属元素来源分析结果发现,太湖流域土壤中的Hg、Cu和Zn主要源自于工业源,As、Pb和Cd主要源于农业上施用的化肥农药,其中Pb和Cd也同时受到自然因素的影响,Cr的来源相对天然,未受到明显的人为因素的影响。
译  名：
Pollution Assessment and Source Analysis of Soil Heavy Metals in Taihu Lake Basin
作  者：
LI Xiang;JIANG Xuexin;GAO Hongju;College of Information and Electronic Engineering,China Agricultural University;College of Software and Microelectronics,Peking University;
关键词：
Taihu Lake Basin;;soil heavy metals;;environmental quality assessment;;factor analysis
摘  要：
Taihu Lake Basin was selected as the study area.The single factor pollution index and Nemerow comprehensive pollution index wereusedto evaluate pollution level of soil heavy metals.Descriptive statistical analysis,Pearson correlation analysis and factor analysis were used to analyze the sources of heavy metals in Taihu Lake Basin.The main conclusions were as follows: the comprehensive pollution level of soil heavy metals in Taihu Lake Basin was between safety to moderate pollution.Hg,Cu and Zn had great harm to Taihu Lake Basin's soil environmental quality and the effect of Hg was the most profound and decisive.Cr was the only element that did not pose a hazard to its soil environmental quality.The source analysis results showed that Hg,Cu and Zn in the soil of Taihu Lake Basin were mainly derived from industrial sources.As,Pb and Cd were mainly derived from agricultural fertilizer and pesticide,among which Pb and Cd were also affected by natural factors.The source of Cr was relatively natural and was not affected by obvious human factors.

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