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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1,2, 魏岩1,*(), 任思远3,*(), 祝燕2,*()
Effects of topography and stand structure of warm temperate deciduous broad-leaved forest on understory herb diversity in Donglingshan, Beijing
Tingting Deng1,2, Yan Wei1,*(), Siyuan Ren3,*(), Yan Zhu2,*()

图2. 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的冗余分析(RDA)排序图。R: 物种丰富度指数; H′: Shannon-Wiener多样性指数; D: Simpson优势度指数; E: Pielou均匀度指数。

Fig. 2. Redundancy analysis (RDA) biplot of topography and forest stand structure and herbaceous species diversity index in 20 ha warm temperate deciduous broad-leaved forest dynamics plot in Donglingshan. R, Species richness; H′, Shannon-Wiener diversity index; D, Simpson dominance index; E, Pielou evenness index; DBHcv, Coefficient of variation of DBH.