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机构地区:[1]首都师范大学资源环境与旅游学院,资源环境与GIS北京重点实验室,北京100037
出 处:《农业环境科学学报》2007年第4期1402-1405,共4页Journal of Agro-Environment Science
基 金:农业部948项目(2006-G63-2)
摘 要:通过对北京通州区宋庄镇宋庄(T1)、潞城镇胡各庄(T2)、梨园镇梨园(T3)等10个乡镇或村落绿色食品产地进行调查和分析测定,选取土壤重金属(Cu、Cr、Hg、As、Pb、Cd)为评价因子,采用模糊综合评价方法对土壤重金属污染状况进行评价。结果表明,评价等级均属Ⅰ级,土壤质量属于清洁水平,可以考虑发展绿色食品。但也应看到台湖镇台湖、潞城镇胡各庄条件较差些,需进一步监测分析,才能确定发展合适的绿色食品。Ten soil mix samples of green food production in Tongzhou were collected from ten towns and villages such as Songzhuang of Songzhuang Town (T1), Hugezhuang of Lucheng Town (T2), and Liyuan of Liyuan Town (T3). The contents of heavy metals- Cu, Cr, Hg, As, Pb, and Cd in soil were studied to evaluate the soil environmental quality by using fuzzy comprehensive assessment method with single factor deciding model. All the result of the assessment belongs to grade I, and the soil is on the level of cleanness with little pollution, thus has a potential to develop green food. The soil environmental quality varies with different areas and is best in Houdicun of Kuoxian Town and Yujiawu of Yujiawu Town, where can be considered to develop Greenfood AA. The soil environmental quality in Taihu of Taihu Town is the worst and on the level of almost no pollution, and Cu pollution was serious through calculating weighing. The soil in Xinxizhuang of Yongledian Town and Hugezhuang of Lucheng Town are relatively poor and requires further inspection and analysis before we make the decision to devel- op the appropriate green food. The soil environment comprehensive assessment can get a satisfied result with the fuzzy comprehensive assessment method .
分 类 号:X825[环境科学与工程—环境工程]
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