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黄龙山林区封育天然油松群落种群生态位特征
引用本文:侯琳,雷瑞德,王得祥,康博文,陈书军.黄龙山林区封育天然油松群落种群生态位特征[J].西北植物学报,2006,26(3):585-591.
作者姓名:侯琳  雷瑞德  王得祥  康博文  陈书军
作者单位:西北农林科技大学,林学院,陕西,杨陵,712100
基金项目:西北农林科技大学青年基金项目(03ZM021)
摘    要:选择黄土高原气候交错带的典型地段,将封育年限作为一维资源状态,以物种的重要值作为资源位上的表征特征,对6个封育年限内的油松群落乔木层、灌木层的主要种群生态位宽度和生态位重叠进行了分析,结果表明:多数种群的生态位宽度较窄,生态位宽度较大的种群,生态位宽度排序与其重要值排序并非一致;种群间的生态位重叠较为普遍,这些结果与群落封育过程中物种对光等生态因子要求不同直接相关。研究结果有助于理解天然林封育过程中种群的生态适应性变化规律。

关 键 词:天然油松林  封育  生态位宽度  生态位重叠  近自然林业
文章编号:1000-4025(2006)03-0585-07
收稿时间:2005-06-02
修稿时间:2005-06-022006-01-17

Niche Characteristics of Community Populations of Natural Pinus tabulaeformis Forests Tended by Closing in Huanglongshan Mountain
HOU Lin,LEI Rui-de,WANG De-xiang,KANG Bo-wen,CHEN Shu-jun.Niche Characteristics of Community Populations of Natural Pinus tabulaeformis Forests Tended by Closing in Huanglongshan Mountain[J].Acta Botanica Boreali-Occidentalia Sinica,2006,26(3):585-591.
Authors:HOU Lin  LEI Rui-de  WANG De-xiang  KANG Bo-wen  CHEN Shu-jun
Institution:College of Forestry,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China
Abstract:An area typical of the crossed climatic zone of the loess plateau was chosen to study the niche widths and overlaps of major populations in arbor and shrub layers of six Pinus tabulaeformis communities still under tending with the tending duration as one resource dimension and the important vales of the species as the apparent eigenvalues on the resource dimension.The results showed that most of the populations have a narrow width,the niche width ranking of the populations with a wider niche width is not always consistent with the ranking of their important values and there exists a wider niche overlap among the populations,which are not directly related to the requirements of such ecological factors as light the during the tending period of the communities.The results of this study are helpful to understanding the patterns of population adaptation during the tending period of natural forests.
Keywords:natural Pinus tabulaeformis forest  tending by forest closing  niche width  niche overlap  nearly natural forestry
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