Dong Lin-Shui, Zhang Xu-Dong, Zhou Jin-Xing, Song Ai-Yun
Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China.
Ying Yong Sheng Tai Xue Bao. 2007 Mar;18(3):471-5.
In this paper, four plots representing the typical secondary succession stages of forest community were selected at the shady slope of bedrock area in Zhongyang County of West Shanxi, aimed to study the variation patterns of the structure and complexity of forest community in the process of secondary succession. The results showed that in the succession process of the community, there was an evident regularity in the variation of height and diameter class structure. The proportion of high and big individuals in the community increased gradually, while that of low and small ones increased first but decreased then. From the viewpoint of height class structure, the compositional complexity of tree species H (X), structural complexity of tree species H (Y/X), and complexity of whole community H (X,Y) all increased first, but decreased then with the succession. At the early, middle and arbor stages of succession, the H(X) value was 2.96, 3.85 and 3.75, while H (Y/X) value was 1.27, 1.66 and 1.37, respectively.
本文在山西西部中阳县基岩区阴坡选取了代表森林群落典型次生演替阶段的4个样地，旨在研究森林群落在次生演替过程中结构和复杂性的变化规律。结果表明，在群落演替过程中，高度和径级结构的变化具有明显的规律性。群落中高大个体的比例逐渐增加，而低矮个体的比例先增加后减少。从高度级结构来看，树种的组成复杂性H(X)、树种的结构复杂性H(Y/X)以及整个群落的复杂性H(X,Y)均随着演替先增加后降低。在演替的早期、中期和乔木阶段，H(X)值分别为2.96、3.85和3.75，而H(Y/X)值分别为1.27、1.66和1.37。
