北京林业大学学报2013，Vol.35Issue(2)：39-44,6.
基于Voronoi图的侧柏游憩林空间结构分析
Analysis of stand spatial structure of Platycladus orientalis recreational forest based on Voronoi diagram method
摘要
Abstract
To explore the approaches to regulate its stand structure, spatial structure ( including aggregation index, mingling, neighborhood comparison, and open degree) of typical forest stand in Xishan National Forest Park of Beijing was analyzed by using Voronoi diagram method. Results indicated that: 1) the average aggregation index of stand was 1.31. The individuals of tree displayed an uniform distribution pattern. 2) The average mingling of stand was 0. 427. The degree of segregation among tree species was low and the spatial configuration was relatively simple. 3 ) The average neighborhood comparison based on DBH and tree height was 0. 512 and 0. 497, respectively. The differentiation of DBH and height was not significant, which indicated a middle level of competition. 4) The average open degree of stand was 0.320. Thus, the stand was relatively open and had adequate growing spaces. In conclusion, spatial structure of this recreational forest was basically reasonable. For the purpose of improving recreational value, stand spatial structure can be optimized through little thinning or adding native broadleaved trees.关键词
游憩林/林分空间结构/Voronoi图/分布格局/混交度/大小比数/开敞度Key words
recreational forest/ stand spatial structure/ Voronoi diagram/ distribution pattern/ mingling/ neighborhood comparison/ open degree分类
农业科技引用本文复制引用
汪平,贾黎明,魏松坡,王奇峰..基于Voronoi图的侧柏游憩林空间结构分析[J].北京林业大学学报,2013,35(2):39-44,6.基金项目
北京市教育委员会科学研究与科研基地建设项目(SYSBL2009)、北京市科技计划项目(Z00060660000701)、北京市教育委员会学科建设与研究生教育建设项目产学研联合培养研究生基地(CXYBL2008-2010). （SYSBL2009）
