CVOR model for assessing the steppe ecosystem health-a case study on the typical steppe in Inner Mongolia,China

摘要：

Introduction The typical steppe region of Inner Mongolia,China extends across 41° to 47° north latitude and 109° to 117° east longitude.C3 grasses,which include Leymus chinensis and stip a grandis are dominant species without disturbance.While with the grazing pressure increasing,the number of Leymus chinensis and stip a grandis decrease,else A rtemisia f rigida and Cleistogenes squarrosa increase (Liu et al.1998).Based on the concept of.Ecosystem Health,.Ecological Integrity,and the theory of information ( Ulanowicz 2000 ) and community characteristics under different grazing pressure,we explored a model for assessing the steppe ecosystem health.

关键词： typical steppe ecosystem health model graze vigor organization resilience

作者: WANG Li-Xin LIU Hua-Min LIU Zhong-Ling WANG Wei LIANG Cun-Zhu YANG Jie

作者单位: College of Life Sciences,Inner Mongolia University,Huhhot 010021,Inner Mongolia,P.R.China

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）