本文以青藏高原高寒草甸草地为研究对象,以研究适于基层技术人员和农牧民掌握应用的草地健康评估方法为目标,以青藏高原东缘牧区牧民的传统知识和经验为基础,借鉴草原科学研究方法,以植被、土壤、水源、家畜为基础筛选评估指标,通过主成分分析与逐步回归分析,以期为基层草原管理部门、当地农牧民提供准确科学、实际可行、操作简便的草地生态系统健康评估方法,最终筛选出植物种类、植被盖度、草层高度、土壤湿度、鼠洞密度、酥油颜色6个主要评估指标。对21个联户草地健康评价结果显示:多数草地比较健康,其中9个联户的草地健康状况最好,有1个联户较差,整个社区的草场均处于良好状态。
<<In this paper,we used the Tibetan Plateau alpine meadow grassland as the research object. In order to research for a concise assessment method of grassland health which applied to the technical staff and farmers,we based on the traditional knowledge and experience ofherdsmen in the pastoral area of Qinghai Tibet Plateau. Referring to the grassland research method,and used the vegetation,soil,water and livestock as the basis for screening evaluation index. Through principal component analysis and stepwise regression analysis,provided a scientific,practical and convenient method of grassland health assessment forgrassland management departments and local farmers and herdsmen. Finally,we selected six main evaluation index,that is,plant species,vegetation coverage,grass height,soil moisture,density and butter color. By verifing the joint grassland health evaluation,the results showed that:the majority of the grassland was healthy,of which nine joint grassland was in best status,a joint was poor,but the whole community of grassland were in good condition.
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