属性层次模型在土壤环境质量评价中的应用

Application of Attribute Hierarchical Model on Soil Quality Assessment

建立土壤环境质量评价的属性层次模型,以土壤综合环境质量评价、评价指标及各样本建立层次结构,将层次分析法中的比例标度转化为相对属性测度得到各指标权重,再计算合成属性值来实现对各土壤样本的质量等级综合评判与排序。将此方法应用于某地区农业土壤环境8个样本、6项重金属污染指标的综合评价,结果表明,与密切值法的评价结果相一致,与模糊综合评判法和分级贴近度法的评价结果略有差异;计算简单、合理,评价结果准确可靠。

A soil environmental quality assessment system by attribute hierarchical model （AHM） is set up and applied on assessing one agricultural soil sample. The result is consistent with that of osculating value method, however, it is a little difference with that of fuzzy comprehensive evaluation method and grading nearness degree method. In a word, AHM is simple and reasonable with accurate results.