【摘要】 通过对大青沟自然保护区沟顶植物群落进行调查,运用物种丰富度指数、Simpson指数、Shannon-wiener指数和Pielou均匀度指数分析各群落的物种多样性特征.结果表明:物种丰富度指数、Simpson指数和Shannon-wiener指数均呈现草本层>乔木层、灌木层;Pielou均匀度指数呈现灌木层>草本层、乔木层,也就是说草本层物种丰富度、多样性指数最高,灌木层均匀度指数最高.通过对各群落物种多样性指数综合分析可知:大果榆(Ulmus macrocarpa)+山杏(Armeniaca sibirica)+茜草(Rubia cordifolia)群落物种多样性较高,比较稳定.更多还原

【Abstract】 Species richness index,Simpson diversity index,Shannon-wiener index,and Pielou evenness index were adopted to analyze the characteristics of species diversity of phytocenosis at the upper slopes in Daqinggou Nature Reserve. The results show that the herb layer of the species richness,Simpson diversity and Shannon-wiener indices were higher than the tree layer and shrub layer. The shrub layer of Pielou evenness index was higher than the herb layer and the tree layer. Ulmus macrocarpa,Armeniaca sibirica and Rubia cordifolia communities were more diverse and stable than any other phytocenosis.更多还原