摘要
通过对其群落特征和生境特点的对比分析,阐述了西藏那曲地区天然草地主要类型、分布规律,提出了那曲地区草地退化过程及各类型之间的动态关系;最后分析了草地退化机理及原因.
The main types and distribution rules of nature rangeland in Naqu prefecture are expounded in the paper,and through the comparative analysis of features of communities and habitats, the process of rangeland degeneration and dynamic relationships of vegetation types are put forward;finally,the reasons of rangeland degenaration are analysized.
出处
《山地研究》
CSCD
1998年第3期239-243,共5页
关键词
西藏
那曲地区
草地退化
天然草地
Naqu in Tibet, rangeland degeneration, process, reasons