水土保持通报2012，Vol.32Issue(4)：246-250,5.
华北土石山区天然次生林枯立木数量特征与分布格局
Quantity Characteristics and Distribution Pattern of Standing Dead Trees in Natural Secondary Forests of Rocky Mountain Area in Northern China
摘要
Abstract
Standing dead trees（SDT） are widespread in forest ecosystems and have a particular important in- fluence on forest development and succession. Based on vegetation community survey in plots of 4 hm2 in Mulan--Weichang forest farm of Hebei Province, this study analyzed the species, diameter structure, bio- mass and distribution pattern of SDT in the rocky mountain area of Northern China. The results indicate that the SDT involved eight species. The density of the SDT was 79.25 stems/hm2 , accounting for 10.13% of to- tal tree numbers in the plots. The biomass of the SDT was 18.46 t/hm2 , accounting for 6.88% of the total biomass in the plots. Among them, both the number and the biomass of Populus were the greatest, account- ing for 83.60% and 90.58% of all the SDT, respectively. The diameter at breast height（DBH） of the major- ity of the SDT was smaller than 22 cm. The average uniform angle index of all the SDT of the forest is 0. 543, indicating a random distribution pattern.关键词
枯立木/树种组成/径级结构/生物量/分布格局Key words
standing dead trees/species composition/diameter structure/biomass, distribution pattern分类
农业科技引用本文复制引用
安云,丁国栋,高广磊,梁文俊,贺宇,魏宝,鲍彪..华北土石山区天然次生林枯立木数量特征与分布格局[J].水土保持通报,2012,32(4):246-250,5.基金项目
国家林业局公益性行业科研项目“典型区域森林生态系统健康维护与经营技术研究” （）
