Intensive grazing leads to degradation and spatial homogenization of topsoils in two major steppe types in Inner Mongolia,P .R . China

摘要：

Intensive land use and especially overgrazing in semi‐arid grasslands results in degradation of steppe vegetation associated with changes in the amount, composition, and turnover of soil organic matter (SOM).The concurrent degradation of soil structure and destruction of aggregation leads to enhanced soil erosion.The effect of intensive grazing on the amount and composition of SOM was assessed by comparison of grazed and ungrazed plots in Leymus chinensis and Stip a grandis dominated steppe types in Inner Mongolia, China.

关键词： semiarid grassland intensive grazing heterogeneity Leymus Stipa

作者: M.Wiesmeier M.Steffens A.Kolbl I.Kogel-Knabner

作者单位: Lehrstuhlfür Bodenkunde,Technische Universitat München,85350 Freising-Weihenstephan,Germany

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）