生态学杂志2018，Vol.37Issue(11)：3255-3261,7.DOI:10.13292/j.1000-4890.201811.012
辽东大伙房水库库区天然针阔次生林林分空间结构
Spatial structure of natural mixed coniferous - broadleaf secondary forest in Dahuofang Reservoir area,eastern Liaoning
摘要
Abstract
To understand the merit of spatial structure of coniferous-broadleaf secondary forests in Dahuofang Reservoir area,eastern Liaoning,we measured four structure parameters,i.e.,angular scale,neighborhood comparison,mixing degree and stand spatial structure index,to analyze the characteristics of stand spatial structure in upper slope and lower slope. The results showed that the horizontal distribution of the forest in the upper slope was randomly distributed,while that in the lower slope was characterized by a slight clustering distribution. In terms of individual plant size in the two positions,a subdominant state was found in the lower slope,while moderate neutral state was found in upper slope. The mixing degree was 0.29 and 0.56 for the upper and lower slope respectively,with the latter one being better. The spatial structure index was 54.81 and 68.04 for the upper and lower slope,respectively,so the integral structure in the lower slope was better. Our results suggested that the forest spatial structure in the lower slope was better than that in the upper slope,which provided a basis for managing the forest structure in this area.关键词
天然针阔次生林/角尺度/混交度/大小比数/林分空间结构指数Key words
natural mixed coniferous-broadleaf secondary forest/angle index/mingling degree/neighborhood comparison/stand spatial structure index引用本文复制引用
弓文艳,陈丽华,余新晓,郑学良,张雪琪..辽东大伙房水库库区天然针阔次生林林分空间结构[J].生态学杂志,2018,37(11):3255-3261,7.基金项目
林业生态科技工程子课题"三北地区防护林体系结构定向调控技术研究与示范"( 2015BAD07B03) 资助. （ 2015BAD07B03）
