文献类型：期刊文献

中文题名：基于相邻木关系的树种分隔程度空间测度方法

英文题名：Evaluating tree species segregation based on neighborhood spatial relationships

作者：惠刚盈[1] 胡艳波[1] 赵中华[1]

第一作者：惠刚盈

机构：[1]中国林业科学研究院林业研究所,国家林业局林木培育重点实验室

年份：2008

卷号：30

期号：4

起止页码：131-134

中文期刊名：北京林业大学学报

外文期刊名：Journal of Beijing Forestry University

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金："十一五"国家科技支撑计划课题(2006BAD03A0803)

语种：中文

中文关键词：树种分隔程度;林分混交度;空间测度

外文关键词：tree species segregation; stand mingling; spatial measurement

分类号：S718.542

摘要：树种分隔程度是林分空间结构的重要组成部分,对其恰当描述是进行近自然森林经营的首要条件。该文提出了基于相邻木关系的树种分隔程度空间测度方法;利用2类8种理论数据和3个不同气候带的3种不同森林群落类型的实际调查数据,对树种分隔程度进行分析,并与目前的计算树种分隔程度的林分混交度计算公式进行了比较。结果表明,树种的分隔程度取决于树种数量及其空间分布,树种数量越多且混交度越大,树种分隔程度就越高;相同树种数量的树种分隔程度取决于树种在林分中的空间分布情况,树种混交度越大其分隔程度越高。该文提出的树种分隔程度空间测度指数,既能恰当地进行不同群落树种分隔程度的比较,也能对同一群落的树种分隔程度相对大小做出合理的判断。
The tree species segregation is an important part of stand spatial structure. The first and foremost condition for near natural forest management is an appropriate description to segregation degree of tree species. This paper presents a new tree species segregation index （Ms） which is based on neighborhood spatial relationships. The authors analyzed the tree species segregation using two categories and eight kinds of theoretical data and field data of three forest types in three different climatic zones. Ms was compared with stand mingling which had been commonly used to calculate tree species segregation. The results show that tree species segregation is determined by the quantity of tree species and tree spatial distribution and is increased with the quantity of tree species and the degree of stand mingling. Tree species segregation of same quantity tree species depends on the spatial distribution condition of tree species in stand and is increased with the degree of stand mingling. Ms can properly compare tree species segregation of different communities and also give a reasonable judgment on relative size to tree species segregation in same community.