【摘要】 同期发生演替是指在原生植被遭到破坏的地段,顶极植物种、演替系列种和演替先锋种一起侵入定居,先形成三者的混生林,再经过一系列的演替阶段而发展成顶极群落的过程。本文通过实例说明了缙云山存在比较典型的同期发生演替现象。通过研究认为:同期发生演替其侵入样地的初期种是随机的,演替的历程也具随机性,但演替的终极阶段却是一致的。对缙云山两类由不同种类开始的同期发生演替用马尔可夫模型进行预测,发现将形成种类组成相似的常绿阔叶林,即演替是收敛的。更多还原

【Abstract】 The synchronously-established succession is the process that pioneer, serai, and climax species grow altogether at the same time, reaching the mixed forest of masson pine and broad-leaved species firstly, then through a series of successional stages, finally developing into the climax community where the primary vegetation was destroyed. With examples in this paper, it illustrated that there was typical synchronously-established succession on Mount Jinyun. The process of succession is stochastic because the invasion of the initial species is stochastic, but the final stage of succession is the same. Markovian model is used to analyse two kinds of synchronously-established succession, the conclusion is that the final stages are evergreen broad-leaved forests with similiar species composition, i. e. the succession is convergent.更多还原