关键词: 植物多样性, 环境因子, 云台山

Abstract: To provide a scientific basis for reforestation,the important value,Shannon-wiener index,Simpson index,richness index,Pielou evenness index and Sorensen similarity coefficient were applied to study the plant diversity in planning afforestation of Yuntai Mountain in Lianyungang.The results were as follows:Phyllostachys varioauriculata was the most in shrub layer,and the important value of Carex pallens was the highest in herb layer.Most plant diversity indexes of herb layer were higher than those of shrub layer basically.Sorensen similarity coefficients showed that the nearer the research areas,the more the same plant species they shared.Shrub plant diversity was related to soil thickness and exposure.The elevation and exposure had some effects on plant diversity in herb layer.

Key words: plant diversity, environment factors, Yuntai Mountain