江西农业学报Issue(5)：14-18,5.
基于因子分析法的汝溪河流域不同植被类型土壤肥力评价
Evaluation of Soil Fertility of Different Vegetation Types in Ruxi River Valley Based on Factor Analysis
摘要
Abstract
The factor analysis was used to evaluate the soil fertility of different vegetation types in the Ruxi river valley .The characteristic root , accumulative contribution rate , factor loading matrix , and principal-component scores were calculated and ana-lyzed, and the status , change law and influencing factors of soil fertility of different vegetation types were obtained , which would help to find the direction and way to improve soil fertility .The analysis showed that soil pH -value and main nutrient contents re-duced gradually from the upper layer to the lower layer of soil .Meanwhile , there was great difference in soil fertility among different vegetation types .The scores of various principal components and the comprehensive score of soil fertility should be comprehensively considered in soil nutrient management .These results could provide reference for the further forest tending , soil erosion control , soil sustainable utilization and so on in the Ruxi river valley .关键词
因子分析/土壤肥力/植被类型/汝溪河Key words
Factor analysis/Soil fertility/Vegetation type/Ruxi river分类
农业科技引用本文复制引用
谭小梅,耿养会,蒋宣斌,周益权..基于因子分析法的汝溪河流域不同植被类型土壤肥力评价[J].江西农业学报,2014,(5):14-18,5.基金项目
林业行业公益性科研专项（201004039）。 （）
