草业科学2009，Vol.26Issue(11)：93-96,4.
不同植物群落对土壤主要营养指标的影响
The effect of plant communities on main soil nutrition
摘要
Abstract
Soil nutrition of a natural grassland and three field cropped sainfoin, wheat and potato was assayed in the hills and dongas area of Loess Plateau in Anding District, Dingxi City. The results showed that soil water content in the natural grassland in the 0-20 cm soil layer increased by 5.6%~21.8% than that of the crop lands (P<0.05 or P<0.01), Total nitrogen content in the two years sainfoin soil was up to 1 367 mg/kg,which was higher than the 1-years sainfoin soil, and other soil (P<0.05). Effective phosphor content varied in different soil but difference did not significant. Organic matter and phosphor in each soil varied with the same trend from April to June and August, however, pH changed very little.关键词
黄土高原/植物群落/土壤养分Key words
loss plateau/plant community/soil nutrition分类
农业科技引用本文复制引用
王国生,温洪,高占琪,刘彦江,景和平,冯建山,陆飒,张洁..不同植物群落对土壤主要营养指标的影响[J].草业科学,2009,26(11):93-96,4.基金项目
世界银行/全球环境基金项目 (052456CHA) （052456CHA）
