水土保持研究2011，Vol.18Issue(5)：166-170,5.
祁连山东段不同植被下土壤养分状况研究
Dynamics of Soil Nutrients under Different Vegetation Types in the Eastern Qilian Mountains
摘要
Abstract
By analyzing carbon,nitrogen and phosphorus changes of 0-20 cm soil layer and 20-40 cm soil layer under the five vegetation types,we studied the effects of different vegetation on soil nutrients in Tianzhu County of the Eastern Qilian Mountain.The results indicated： vegetation can significantly improve the surface soil nutrient,and surface aggregation effect of arbor is stronger than shrub and grass.With the changes of vegetation from grass to shrub and then to arbor,soil organic carbon,total nitrogen,ammonium nitrogen and available phosphorus show a growing trend（p0.05） while there is no significant changes in soil total phosphorus.Changes in nitrate nitrogen are complex due to many factors.Taking all factors into consideration,the ability to maintain the soil nutrient balance of Qinghai spruce-birch mixed forest is stronger than the other four vegetations.关键词
祁连山/植被/土壤养分/土壤-植物系统Key words
Qilian Mountains/vegetation/soil nutrient/soil-vegetation ecosystem分类
农业科技引用本文复制引用
姜红梅,李明治,王亲,刘星星..祁连山东段不同植被下土壤养分状况研究[J].水土保持研究,2011,18(5):166-170,5.基金项目
国家基础科学人才培养基金 （）
兰州大学中央高校基本科研业务费专项资金 （）
