安徽农业科学2016，Vol.44Issue(20)：124-125,142,3.
西藏藏北地区不同草原类型区土壤理化性质特征研究
The Soil Physical and Chemical Properties of Different Steppe Types in Northern Tibet
摘要
Abstract
Objective] To find the physical-chemical properties of different steppe types in northern Tibet.[Method] Steppes in northern Tibet were divided and samples were collected randomly.The water content of topsoil, organic matter, content of total phosphorus and available potas-sium were measured.[Result] Topsoil water contents in different steppe types from high to low were in the order of alpine swamp meadow, al-pine meadow, alpine shrub meadow, and alpine semi-desertification steppe.Organic matter content of topsoil from high to low were in the order of alpine swamp meadow, alpine meadow, alpine shrub meadow, and alpine semi-desertification steppe.Total P contents of topsoil from high to low were in the order of alpine shrub meadow, followed by alpine meadow, alpine swamp meadow, alpine semi-desertification steppe.Alpine swamp meadow had the highest available P content of topsoil, followed by alpine shrub meadow, alpine meadow, alpine semi-desertification steppe.[Conclusion] We should strengthen the protection of degraded steppes and carry out rational utilization of topsoil water.关键词
草原类型/西藏藏北/表层土壤有机质/表层土壤含水量Key words
Steppe type/Northern Tibet/Topsoil organic matter/Topsoil water content分类
农业科技引用本文复制引用
周启龙..西藏藏北地区不同草原类型区土壤理化性质特征研究[J].安徽农业科学,2016,44(20):124-125,142,3.基金项目
农业部公益性行业科研专项（201203006）。 （）
