不同强度旅游干扰对鹞落坪保护区玉玲花群落物种多样性的影响

Disturbing Effects of Tourism on Species Diversity in Styrax obassius Communitie in Yaoluoping National Resources Reserve

用物种丰富度指数S、Simpson指数D、Shannon-Wiener指数H比较分析了不同强度旅游干扰下鹞落坪保护区玉玲花(Styraxobassius)群落不同层次的物种多样性物的变化。结果表明:乔木层中,低度干扰下多样性指数较大;其他层次中,中度干扰下多样性指数最高。群落分析表明,低度干扰下几种多样性指数分别为39、3.0946、0.9538;中度干扰下,多样性指数最高,分别为40、3.5981、0.9568;高度干扰下,分别为31、3.0053、0.9457,多样性指数最低。

This article studies the disturbances of tourism on the species diversity in different layers of the Styrax obassius communities in Yaoluoping National Resources Reserve by using species richness index（S）、Simpson index（D）、Shannon-Wiener index（H）.The highest diversity index were found in arbor layer under the low disturbance.The highest diversity index were found in other layers under the intermediate disturbance.The values of S,D and H under the low disturbance were 39、3.0946、0.9538.These indices under the intermediate disturbance were 40、3.5981、0.9568,highest among three disturbances.Under the high disturbance,These indices were 31、3.0053、0.9457.