林业科学2012，Vol.48Issue(8)：46-53,8.
不同混交度指数的比较分析
Comparative Analyses on Different Mingling Indices
摘要
Abstract
Mingling has recently been presented as an index describing tree species separation in a stand including simple mingling, tree species diversity mingling, and tree species spatial status. However, current mingling indices incompletely express the separation relationship among tree species in a spatial structure unit, there is a problem of different mixed structure with equal mingling. This paper proposes complete mingling based on analyzing simple mingling, tree species diversity mingling and tree species spatial status, and their existing problems. Comparative analyses of different mingling indices were carried out based an example of the evergreen broadleaved forest in Tianmu Mountain National Nature Reserve and Voronoi diagram method of GIS. The results show that tree species diversity mingling, tree species spatial status and complete mingling are improved from simple mingling, so differences and relationships exist among them, and mathematical relationships between different mingling indices have been testified. Complete mingling additionally involves tree species separation relationship of the nearest neighbors, and biodiversity Simpson index is introduced into complete mingling. As a result, complete mingling significantly increases resolving power for different mixed structures.关键词
天目山/常绿阔叶林/混交度/全混交度/Voronoi图Key words
Tianmu Mountain/ evergreen broadleaved forest/ mingling/ complete mingling/ Voronoi diagram分类
农业科技引用本文复制引用
汤孟平,娄明华,陈永刚,徐文兵,赵明水..不同混交度指数的比较分析[J].林业科学,2012,48(8):46-53,8.基金项目
国家自然科学基金项目(31170595, 30871963) （31170595, 30871963）
浙江省自然科学基金项目(Y3080261) （Y3080261）
浙江省重点科技创新团队(2010R50030) （2010R50030）
浙江省科技计划项目(2009C32063) （2009C32063）
教育部留学回国人员启动金项目(20101561). （20101561）
