|
|||||
|
|
Composition and characteristics of natural secondary forests in Shenzhen,South China |
|
| Authors: | Wang?Dianpei Ji?Shuyi Chen?Feipeng |
| Institution: | 1. South China Botanical Garden,the Chinese Academy of Sciences,Guangzhou 510650,P. R. China;College of Life Science and Technology,Xiaogan University,Hubei 432100,P. R. China 2. College of Life Science,South China Agricultural University,Guangzhou 510642,P. R. China 3. College of Life Science,Zhongshan University,Guangzhou 510275,P. R. China |
| Abstract: | The composition and structure of five natural secondary forests in Shenzhen were studied based on data of plots and were compared with Hong Kong zonal forest, so as to detect their succession stage and species diversity level. According to succession process of subtropical forest and ecological characteristics of dominant species, the authors speculate that five communities are at different stages. Sinosideroxylon community dominated by heliophilous evergreen broad-leaved tree (Sinosideroxylon wightianum) and conifer tree (Pinus massoniana) is at the third stage. Itea + Acronychia community dominated by two evergreen broad-leaved heliophytes (Itea chinensis and Acronychia pedunculata) is at the fourth stage. The others, i.e., Schefflera, Sterculia and Cleistocalyx + Sterculia community are at the fifth stage where some mesophytes are dominant but heliophytes have a weighed percentage of importance value. Due to succession stage and different forest management and conservation models, the species diversity of five communities is significantly lower than that of Endospermum community in Hong Kong. The values of Shannon-Wiener index and Pielous evenness index of five communities are 2.04–2.953 and 64.2%–74% respectively, but those of the Endospermum community are 4.74 and 79% respectively. The current situation of these communities suggests that the necessary measures should be taken to protect and restore the communities. Supported by the National Natural Science Foundation of China (Grant No.30270282, 30170147)] |
| Keywords: | species composition community structure forest succession natural secondary forest heliophyte mesophyte |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ | |
| 点击此处可从《中国林学》浏览原始摘要信息 | |
| 点击此处可从《中国林学》下载免费的PDF全文 | |