土壤质量等级模糊模式识别综合评价研究  

Research on the Comprehensive Evaluation of Soil Quality Grade Based on Fuzzy Pattern Recognition

作　　者：黄鑫[1] 李洪良[2] 邱林[1] 

机构地区：[1]华北水利水电学院环境与市政工程学院,河南郑州450011 [2]黄河水利出版社,河南郑州450003

出　　处：《人民黄河》2012年第3期68-70,73,共4页Yellow River

基　　金：水利部公益性行业科研专项(200801015);华北水利水电学院高层次人才科研启动基金资助项目(200821)

摘　　要：应用模糊模式识别分析原理与方法对土壤质量等级进行评价,以加权距离平方和最小为识别准则,充分利用土壤质量评价中存在的模糊性,也考虑了评价因素权重和指标值的影响。实例评价结果表明:用此法进行土壤质量等级综合评价,理论上更为严谨,评价结果更为科学、精确,更符合实际情况,可为开发利用土地、采取合理措施提高土壤生产力提供依据。Here applied the analytical principle and method of fuzzy pattern recognition to evaluate soil quality grade, and illustrated the mathemat- ics and physical meaning of the recognition criteria by minimizing the square sum of weighted distances and its corresponding iterative formulas. The method could fully utilize the existent fuzzy characteristic in the evaluation of soil quality mid consider joint influence of weight and index value of evaluated factors. The application resuh of the comprehensive evaluation of soil quality grade shows that it＇s more rigorous in theory, and more set- entitle and more precise, and more satisfied with the actual situation. It can provide scientific basis for utilizing the land, adopting rational meas- ures to raise the soil production.

关 键 词：土壤质量 土壤等级 模糊模式识别 加权广义权距离 

分 类 号：S151.9[农业科学—土壤学]