模糊综合评价在农田重金属污染评价中的应用  

Application of Fuzzy Comprehensive Assessment in Pollution Assessment of Heavy Mental in Farmland Soil

作　　者：李梦红[1] 张晓君[1] 卢杰[1] 

机构地区：[1]山东理工大学资源与环境工程学院,山东淄博255049

出　　处：《西南农业学报》2010年第5期1581-1585,共5页Southwest China Journal of Agricultural Sciences

基　　金：山东省自然科学基金资助项目(Y2008F51)

摘　　要：从模糊分析的基本原理出发,运用模糊综合评价法对新泰市农田土壤重金属的污染状况进行评价研究。选取7种重金属作为评价因子,建立评价集,计算隶属函数和权重集等模糊集合,并对新泰市农田土壤进行了分级和质量标准划分。通过采用模糊综合-加权平均模型,可对样本进行比较排序,提高了评价结果的精度。同时对新泰市农田土壤的污染情况作了具体分析,指出Zn和Cd的污染最为严重。Based on the principle of fuzzy analysis, fuzzy comprehensive assessment was applied to evaluate the heavy metals pollution of farmland soil in Xintai city. Seven kinds of heavy metals were selected as evaluation factor and evaluation factor sets were established. Membership function and fuzzy sets such as weight sets were calculated and then classification of farmland and division standard of farmland quality was conducted. The fuzzy comprehensive-weighted average model was used to rank the sample and improve the precision of assessment results. At the same time, detailed analysis on pollution situation of farmland soil of Xintai was made and the pollution of Zn and Cd were found to be the most serious.

关 键 词：模糊综合评价 土壤重金属 加权平均 新泰 

分 类 号：X825[环境科学与工程—环境工程]