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用主成分分析和灰色关联度分析评价草原土壤质量
引用本文:李月芬,汤洁,李艳梅.用主成分分析和灰色关联度分析评价草原土壤质量[J].世界地质,2004,23(2):169-174,200.
作者姓名:李月芬  汤洁  李艳梅
作者单位:吉林大学,环境与资源学院,吉林,长春,130026
基金项目:国家自然科学基金项目资助(40072093,40273047)
摘    要:在吉林西部草原生态环境调查的基础上,对草原土壤进行了理化性质、营养成分等系统测试,选择其中的有机质、金氮、全磷、全钾、水解性氮、速效磷、速效钾、碱化度、pH值等项目作为评价指标,应用主成分分析法,对吉林西部17种草地进行综合评价,将吉林西部草原土壤分为五个等级,并用灰色关联度分析方法进行了对比。结果表明,两种评价方法得出的结论基本一致。

关 键 词:草原土壤质量  主成分分析  灰色关联度分析  吉林省西部
文章编号:1004-5589(2004)02-0169-07

Evaluation on grassland soil quality with analysis of principal component and grey relative
LI Yue-fen,TANG Jie,LI Yan-meiCollege of Environmentl and Resources,Jilin University,Changchun ,Jilin,China.Evaluation on grassland soil quality with analysis of principal component and grey relative[J].World Geology,2004,23(2):169-174,200.
Authors:LI Yue-fen  TANG Jie  LI Yan-meiCollege of Environmentl and Resources  Jilin University  Changchun  Jilin  China
Institution:LI Yue-fen,TANG Jie,LI Yan-meiCollege of Environmentl and Resources,Jilin University,Changchun 130026,Jilin,China
Abstract:Based on the investigation of grassland environment in the western Jilin Province,the physical and chemical characteristics and nutrient components in the soil were tested. The organic matter,Total N,Total P,Total K,Available N,Available P,Available K,ESP and pH value were chosen as main indexes for value,and the principal component analysis was used to evaluate seventeen types of grassland soil in this area. The soil in the grassland of northern Jilin Province was Sub divided into five grades,and gray relative analysis was done at the same time for parallel. The results from the two ways are the same in substance.
Keywords:grassland soil quality  principal component analysis  gray relative analysis  western Jilin Province
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