【摘要】 通过对高原草甸类为主的天然草地演替现状的调查分析，发现我省高寒草甸草地严重退化，演替呈逆向演替。其成因主要是日益不良的自然因素和人为的过度扰动，尤其鼠虫害、过度放牧和不合理的挖掘，对高寒草甸逆向演替作用十分显著。更多还原

【Abstract】 By the analyses of present situation of evolvemen t of natural meadow,Which is essential species of alpine meadow.The results showed that alpine meadowin our province degenerated seriously and take on a contrary evolvement.the factor leading to the consequence is natural factors becoming wor s e with each passing day andirrational developmentto alpinemeadow.So this counter action based on above clear.更多还原