| 主成分分析在潮土土壤肥力评价中的应用 |
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| 引用本文： | 张水清,黄绍敏,郭斗斗.主成分分析在潮土土壤肥力评价中的应用[J].河南农业科学,2011,40(4):82-86. |
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| 作者姓名： | 张水清 黄绍敏 郭斗斗 |
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| 作者单位： | 河南省农业科学院植物营养与资源环境研究所,河南郑州,450002 |
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| 基金项目： | 河南省重大公益性科研项目，国家"十一五"科技支撑计划沃土工程项目，国家科技基础条件平台建设项目资助 |
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| 摘 要： | 利用主成分分析法评价不同施肥措施对土壤肥力质量的作用.在对河南潮土长期定位监测的基础上,对土壤进行了理化性质测试,选择其中的有机质,全氮、全磷、缓效钾、碱解氮、速效磷、速效钾和pH值等项目作为评价指标,应用主成分分析法,对11个不同施肥方式下的土壤肥力进行综合评价.结果表明,各处理土壤肥力指标依次为1.5MNPK＞MN...
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| 关 键 词： | 土壤肥力 潮土 评价 主成分分析 聚类分析 |
Evaluation of Fluvo-aquic Soil Fertility Quality with the Method of Principal Component Analyses |
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| ZHANG Shui-qing,HUANG Shao-min,GUO Dou-dou.Evaluation of Fluvo-aquic Soil Fertility Quality with the Method of Principal Component Analyses[J].Journal of Henan Agricultural Sciences,2011,40(4):82-86. |
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| Authors: | ZHANG Shui-qing HUANG Shao-min GUO Dou-dou |
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| Institution: | (Institute of Plant Nutrition and Environmental Resources,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China) |
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| Abstract: | Based on the long-term location monitoring of fluvo-aquic soil fertility in Henan,the soil physical and chemical characteristics were measured.The organic matter,total nitrogen,total phosphorus,slowly-available potassium,available nitrogen,available phosphorus,available potassium and pH value(eight indexes)were chosen as evaluation indexes in principal component analyses.The results showed that fluvo-aquic soil fertility quality of eleven treatments was 1.5 MNPK>MNPK,MNPK(2),SNPK>NPK>NK,PK,NP>O,CK,N(O represented soil abandoned and no fertilizer;M,N,P,K and S separately represented nitrogen,phosphorus,potassium,organic matter and corn stock).The results were the same as those by cluster analysis on the whole.The results of principal component analyses could reflect soil fertility more scientifically and comprehensively. |
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| Keywords: | Soil fertility Fluvo-aquic soil Evaluation Principal component analyses Cluster analysis |
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