水土保持研究2011，Vol.18Issue(3)：41-47,7.
北京山区栓皮栎水源涵养林空间结构特征研究
Spatial Structure Characteristic of Quercus variabilis Forest in Xishan Mountain of Beijing
摘要
Abstract
This study investigated the application of terrestrial laser scanning for providing quantitative forest parameters at the plot-level by using ‘multi-stop' scanning method for determining stand parameters such as the tree height, basal area and other parameters.This paper described the spatial structural characteristics of one plot-level stand of Quercus variabilis forests in Xishan Mountain of Beijing using mingling degree, neighborhood comparison and the method of point pattern analysis.The results showed that there were sixteen species in arbor layer of Quercus variabilis forests and the stand has a vertical structure showing a typical structure of the complex character.The average mingling degree of the whole stand was 0.32, suggesting the low mingling degree of stands.In the spatial structural units, Quercus variabilis, Pinus tabulaeformis,Quercus dentata and Robinia pseudoacacia were mainly of dominant, sub-dominant and intermediate trees,accounting for 67％, 51％, 71％ and 57％ of the total plants of the populations, respectively, while the advantages of other populations were not obvious.Quercus variabilis took a significant aggregation distribution on the research scale(30 m).The space correlation of Quercus variabilis and Acer truncatum is mainly negative association on the research scale, the interspecific competition is very fierce.关键词
三维激光扫描/点云数据/水源涵养/空间结构/点格局分析Key words
3D laser scanning/ cloud point/ water conservation/ spatial structure/ point pattern analysis分类
农业科技引用本文复制引用
赵阳,余新晓,宋思铭,张艺,杨芝歌,王贺年,邓文平..北京山区栓皮栎水源涵养林空间结构特征研究[J].水土保持研究,2011,18(3):41-47,7.基金项目
国家林业公益性行业科研专项经费项目"典型森林植被对水资源形成过程的调控研究"(201104005) （201104005）
国家"十二五"科技支撑项目"海河上游水源涵养林体系构建技术研究与示范"(2011BAD38805) （2011BAD38805）
