河南农业科学2011，Vol.40Issue(4)：82-86,5.
主成分分析在潮土土壤肥力评价中的应用
Evaluation of Fluvo-aquic Soil Fertility Quality with the Method of Principal Component Analyses
摘要
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 potassiumand 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.关键词
土壤肥力/潮土/评价/主成分分析/聚类分析Key words
Soil fertility/ Fluvo-aquic soil/ Evaluation / Principal component analyses/ Cluster analysis分类
农业科技引用本文复制引用
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):82-86,5.基金项目
河南省重大公益性科研项目(081100911500) （081100911500）
国家"十一五"科技支撑计划沃土工程项目(2006BAD25B06) （2006BAD25B06）
国家科技基础条件平台建设项目资助(SF2007-5) （SF2007-5）
