摘要
将农业土壤的重金属污染的级别、评价指标及其特征值作为物元 ,得到模型的经典域、节域、权系数及关联度 ,进而建立了农业土壤环境综合模型 ,通过应用实例加以说明 ,并用 Hamming贴近度法、Fuzzy综合评判法、分级贴近度法进行对照 。
The heavy mental pollution grade of agriculture soil and the evaluating indexes and its eigenvalue are made as matter element, the sutra field, controlled field, weight coefficient and relating degree are obtained. Meanwhile, the model for evaluating agriculture soil environment is built up. The process is explained by an example, the result which is compared by Hamming pressing close to degree method, Fuzzy synthesize evaluation method and graded pressing close to degree method, is better.
出处
《水土保持通报》
CSCD
北大核心
2002年第4期37-39,共3页
Bulletin of Soil and Water Conservation
基金
四川省学术和技术带头人培养基金 (2 2 0 0 118)
关键词
农业土壤环境
综合评价
物元模型
应用
关联度
agriculture soil
pollution
evaluating index
matter element
relating degree
