演替度 degree of succession 用相对值判断演替进行程度的指标。系沼田真（1961）提出的指标。即以各群落组成种的寿命（l）与顶极指数（c）、优势度（d）之乘积的总和除以种数（n），再乘以植被率（υ），所得值来表示，即演替度（DS）=[（∑c．l．d）／n．υ]。
在针阔混交林向阔叶林演替过程中，物种丰富度指数表现为较大的波动性。
In the process of secondary succession from conifer - broadleaf forest to broadleaf forest, species richness fluctuated remarkably.
演替驱动力主要有：胶林郁闭度、胶林抚育管理措施、气候和土壤条件以及胶林植被本身的生物学特性。
The main drives of succession include canopy density of rubber forest, management, climate, soil condition and the biological properties of vegetation.
运用相似学原理，组建群落间相似度方程并以此方程构建了群落演替系列；
Based on similarity theory, succession sere was constructed with the community similarity equation formed.
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