北京林业大学学报2013，Vol.35Issue(1)：16-22,7.
天然林林分空间结构综合指数的研究
A new composite index of stand spatial structure for natural forest
摘要
Abstract
Forest spatial structure index ( FSSI ) was defined with commonly-used forest spatial structure parameters (mingling, neighborhood comparison and neighborhood pattern index) as the breakthrough point, referring to the thought of diminishing marginal benefit of Cobb-Douglas production function in microeconomics and through constructing forest spatial structure production function with mingling, neighborhood comparison and neighborhood pattern index as the "input" and forest spatial structure as the "output". Meanwhile, forest spatial structure distance (FSSD) was calculated according to the trend of a change from actual forest spatial structure to ideal structure in "three-dimensional scatter diagram" of parameters of forest spatial structure. It is verified that FSSI and FSSD can effectively reflect the features of forest spatial structure and the dynamic changes in combination of forest spatial structure parameters, FSSI and the calculation results of FSSD obtained through complete investigation of 75 sample plots with different forest types in 3 different areas in Heilongjiang Province, northeastern China. It can be regarded that FSSI and FSSD perfect and supplement widely-used forest spatial structure parameters. The two can act as overall indicators to describe forest spatial structure states and changes quantificationally.关键词
天然林/林分空间结构指数/林分空间结构距离/角尺度/大小比数/混交度Key words
natural forest/forest spatial structure index( FSSI) /forest spatial structure distance( FSSD) / neighborhood pattern/ neighborhood comparison/ mingling分类
农业科技引用本文复制引用
董灵波,刘兆刚,马妍,倪宝龙,李元..天然林林分空间结构综合指数的研究[J].北京林业大学学报,2013,35(1):16-22,7.基金项目
"十二五"国家科技支撑计划项目(2011BAD37802)、林业公益性行业科研专项(20100400207)、长江学者和创新团队发展计划资助项目(IRT1054). （2011BAD37802）
