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北京密云水库集水区刺槐人工林空间结构分析

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
  • 维普
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Spatial structure of Robinia pseudoacacia plantation in Miyun Reservoir Watershed of Beijing
In 2006, to analyze the spatial structure of Robinia pseudoacacia plantation, the plantation predominated by R. pseudoacacia located in Wuzuolou Forest Farm of Beijing was taken as the study object, and three structural parameters, i.e. mingling degree, neighborhood comparison and uniform angle index, were used. The results showed that mingling degree of R. pseudoacacia plantation was mainly zero( Mi=0) and relatively weak(Mi = 0.25) , the mean value was 0.158, indicating the simple spatial allocation and poor mixing of different tree species in this plantation. The distribution of neighborhood comparison changed with a fluctuant pattern, and the proportions of dominant, sub-dominant and middle stands differred little, and the stability of species in the arborous layer was good. As for uniform angle index, considering the spatial structure units, the frequency of some individual tree classes changed in a relatively large range and the forest plantation presented a gathering distribution pattern.

Robinia pseudoacacia plantationspatial structuremingling degreeneighborhood comparisonneighborhood pattern

刘彦、余新晓、岳永杰、甘敬、王小平、李金海

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水土保持与荒漠化防治教育部重点实验室,北京林业大学水土保持学院

内蒙古农业大学林学院

北京市园林绿化局

刺槐人工林 空间结构 混交度 大小比数 角尺度

北京市教育委员会资助项目国家林业局林业公益性行业科研专项经费项目国家林业局重点科研项目国家科技支撑项目北京市科技计划项目

2008040222006-692006BAD03A0201D0706001000091

2009

北京林业大学学报
北京林业大学

北京林业大学学报

CSTPCDCSCD北大核心
影响因子：1.237
ISSN：1000-1522
年,卷(期)：2009.31(5)
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