北京东灵山暖温带落叶阔叶林地形和林分结构对林下草本植物物种多样性的影响

邓婷婷, 魏岩, 任思远, 祝燕

Effects of topography and stand structure of warm temperate deciduous broad-leaved forest on understory herb diversity in Donglingshan, Beijing

Tingting Deng, Yan Wei, Siyuan Ren, Yan Zhu

表1 东灵山20 ha暖温带落叶阔叶林动态监测样地地形和林分结构与草本植物物种多样性指数之间的相关系数

Table 1 Correlation coefficients between topography, forest stand structure and herbaceous species diversity index in a 20 ha warm temperate deciduous broad-leaved forest dynamics plot in Donglingshan

参数 Parameters 物种丰富度 Species richness Shannon-Wiener多样性指数 Shannon-Wiener diversity index Simpson优势度指数 Simpson dominance index Pielou均匀度指数 Pielou evenness index 海拔 Elevation -0.017 -0.102 -0.119 -0.130 坡度 Slope 0.042 0.043 0.075 0.017 凹凸度 Convexity 0.087 0.047 0.051 -0.028 坡向 Slope aspect -0.148 -0.187* -0.153 -0.111 林分密度 Stand density -0.280** -0.224* -0.163 0.065 平均胸径 Mean of diameter at breast height (DBH) 0.295** 0.243** 0.181 0.032 胸径变异系数 Coefficient of variation of DBH (DBHcv) -0.154 -0.107 -0.07 0.021 林地物种丰富度 Forest species richness -0.234** -0.180* -0.163 -0.032