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北京百花山森林群落的结构多样性研究
引用本文:郑景明,赵秀海,张春雨.北京百花山森林群落的结构多样性研究[J].北京林业大学学报,2007,29(1):7-11.
作者姓名:郑景明  赵秀海  张春雨
作者单位:1.1 北京林业大学生物中心2 河北科技师范学院生命科学系
基金项目:北京市科委科研项目 , 北京市重点学科建设项目
摘    要:该文采用点四分法结合分层盖度估计方法测定了百花山几种森林群落的结构多样性,构建了结构多样性的指标,并分析比较了不同群落结构多样性差异.在以往工作的基础上,提出林分尺度的结构多样性可以采用垂直结构复杂性指标和水平结构异质性指标来表示.结构多样性指标和常用群落指标的相关分析结果说明,结构多样性指数与树高多样性和乔木层和灌木层物种多样性显著相关,能很好地解释森林群落的结构特征.不同群落的结构多样性计算结果表明,处于演替后期的辽东栎天然林比演替初期的白桦林有较高的结构多样性;不同树种的人工林结构发育速度不同,抚育往往能增大人工林水平结构异质性而减少垂直结构复杂性. 

关 键 词:结构多样性    百花山    森林    抚育
文章编号:1000-1522(2007)01-0007-05
收稿时间:1900-01-01
修稿时间:2005-12-23

Structural diversity of forest community in Baihuashan Mountain, Beijing
ZHENG Jing-ming,ZHAO Xiu-hai,ZHANG Chun-yu.Structural diversity of forest community in Baihuashan Mountain, Beijing[J].Journal of Beijing Forestry University,2007,29(1):7-11.
Authors:ZHENG Jing-ming  ZHAO Xiu-hai  ZHANG Chun-yu
Institution:Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, 100083, P. R. China.
Abstract:Structural diversity of forests in Baihuashan Mountain, Beijing, was surveyed through plotless method combined with branch and leaf coverage estimation in different layers, and new structural indices were constructed, calculated and compared among different communities. On the basis of previous work, structural diversity of forest community in stand scale was described by vertical complexity index and horizontal heterogeneity index. In correlation analysis among the new indices and other common-used biodiversity indices, the new indices were closely related to tree height inequality index and Shannon-wiener index of tree and shrub layer, which indicated that the new indices were good at indicating structural diversity in different forests in Baihuashan Mountain. The results show that, in natural forests, structural diversity of pioneer community is much lower than that of late successive community; while in plantations, structural diversity is determined by the development stage and tree species, and tending would increase the horizontal heterogeneity and decrease the vertical complexity.
Keywords:structural diversity  Baihuashan Mountain  forests  tending
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