凉山烟区土壤肥力的综合评价  

Comprehensive Evaluation of Soil Fertility in Liangshan Tobacco Growing Area

作　　者：周琳[1] 李志伟 张腾[1] 叶协锋[1] 田斌强[1] 王龙[1] 王伟宁[1] 邢小军[3] 于建军[1] 

机构地区：[1]河南农业大学国家烟草栽培生理生化基地,河南郑州450002 [2]川渝中烟工业有限责任公司,四川成都610017 [3]四川省凉山州烟草公司,四川西昌615000

出　　处：《江西农业学报》2013年第1期60-62,共3页Acta Agriculturae Jiangxi

基　　金：四川省烟草专卖局资助项目

摘　　要：根据凉山烟区5种类型土壤的9种肥力指标数据,应用主成分分析法对该区的土壤肥力进行了综合评价,得出的3个主成分的累积贡献率为86.96%。3个主成分为养分因子(由有机质、有机总碳、全氮、全磷、碱解氮、速效磷含量组成)、钾因子(由全钾和速效钾含量组成)和pH因子(由pH值组成)。不同类型土壤肥力的综合得分显示为:黄壤>紫色土>红壤>水稻土>黄棕壤。The principal component analysis in the SPSS statistical software was adopted to conduct a comprehensive evaluation of soil fertility according to 9 fertility indicators of 5 soil types in Liangshan tobacco growing areas. The cumulative contribution rate of three main components was 86.96%. The original indicators information could be explained basically by these three main compo- nents. The three main components were： （~） soil organic matter, organic total carbon, total nitrogen, total phosphorus, available ni- trogen, available phosphorus content; .total potassium and available potassium content; pH -value. The integrated fertility score of various soil types showed the following order： yellow soil 〉 purple soil 〉 red soil 〉 paddy soil 〉 yellow brown soil.

关 键 词：凉山 烤烟 主成分分析 土壤肥力 综合评价 

分 类 号：S572.062[农业科学—烟草工业]