摘要： 基于32个样地和64个小样方的调查资料,对野生樱桃李群落进行分析,发现群落中植被总计98种(含变种)分属36科84属。群落中以野山楂、野生樱桃李、野苹果和野杏的重要值最高分别为42.79,33.78,30.21,22.94。对样地的同一生长型植物与物种多样性关系分析表明:群落内各层的物种丰富度Margalef指数、多样性Simpson指数和Shannon-Wiener指数的大小的顺序为"草本层>灌木层>乔木层",群落总丰富度主要受草本层丰富度的影响。野生樱桃李群落生态系统脆弱,应加强保育。

关键词: 野生樱桃李, 群落, 生态特征

Abstract: Plant community of Prunus divaricata Ledeb.was studied.There are 98 species of vascular(including varieties),which belong to 36 genera and 84 families,based on data from 32 plots and 64 the size of 1m×1m little plots.The importance value of the wild hawthorn,the wild myrobalan plum,the wild apple and the wild apricot are highest,their importance value are 42.79,33.78,30.21 and 22.94.Comparative Study of the same growth form and species diversity we found the Margalef index,the Simpson index and Shannon-W inner index show that the species richness order was that the herb layer shrub layer tree layer.The species richness of the herb layer show close relationship with the total species richness of community.The ecological environment of Prunus divaricata Ledeb.plant communities is fragile.The strategies for conservation should be Strengthened.

Key words: Prunus divaricata Ledeb., Community, Ecological characteristics

中图分类号: 

• S662.01