北京八达岭林场黄栌风景林空间结构分析  

Spatial Structure of Scenic Forest of Cotinus coggygria in Badaling Forest Farm of Beijing

作　　者：王威[1] 郑小贤[1] 梁雨[1] 刘姗[1] 杨馥宁 

机构地区：[1]森林培育与保护教育部重点实验室(北京林业大学),北京100083 [2]江西省林业调查规划研究院

出　　处：《东北林业大学学报》2008年第2期25-26,39,共3页Journal of Northeast Forestry University

基　　金：北京市科委重大科技项目(D0706001000091)

摘　　要：应用传统林分结构因子配合混交度、大小比、角尺度3个参数来表述北京八达岭林场黄栌风景林空间结构特征。该林分树种组成式为6黄栌2山荆子1侧柏1大果榆;全林混交度为0.31,树种混交程度较低,主要树种黄栌的混交程度更低为0.13,结构不稳定;林分树高大小比和胸径大小比值分别为0.42和0.40,而黄栌的胸径大小比和树高大小比值分别为0.51和0.52,有近一半的黄栌在大小比中处于优势地位;林分角尺度频率值为0.583,林分接近团状分布,而黄栌角尺度频率值为0.499,接近随机分布。Some traditional structure factors of stand （mingling, neighborhood comparison and neighborhood pattern） were used to describe the spatial structure of the scenic forest in Badaling Forest Farm. The ratio of Cotinus coggygria Scop. , Malus baccata （L.） Borkh, Platycladus orieraalis （Linn.） Franco and Ulmus rnacrocarpa Hance in the stand is 6：2： 1： 1. The average mingling value of the whole stand is 0.31, which is at a low level. Furthermore, the structure is unsteady due to the lower mingling value of C. coggygria （0.31）. The values of neighborhood comparison of tree height and diameter at breast height for the stand are 0.42 and 0.40 respectively, while those for C. coggygria are 0.51 and 0.52, indicating that nearly a half number of C. coggygria trees is dominant. The average value of neighborhood pattern of the stand is 0.583, displaying a clumped distribution in structure, and that for C. coggygria is 0.499, representing a random distribution.

关 键 词：黄栌 风景林 空间结构 

分 类 号：S754[农业科学—森林经理学]