[1]郝月兰,张会儒,唐守正. 基于空间结构优化的采伐木确定方法研究[J].西北林学院学报,2012,27(05):163-168.
 HAO Yue-lan,ZHANG Hui-ru,TANG Shou-zheng. Determination Method of Cutting Tree Based on Forest Stand Spatial Structure Optimization[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(05):163-168.
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 基于空间结构优化的采伐木确定方法研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第27卷
期数:
2012年05期
页码:
163-168
栏目:
出版日期:
2012-09-20

文章信息/Info

Title:
 Determination Method of Cutting Tree Based on Forest Stand Spatial Structure Optimization
文章编号:
1001-7461(2012)05-0163-06
作者:
 郝月兰张会儒唐守正
 (中国林业科学研究院 资源信息研究所,北京 100091)
Author(s):
 HAO Yue-lan ZHANG Hui-ru TANG Shou-zheng
 (Institute of Forest Resources Information Techniques, CAF, Beijing 100091,China)
关键词:
 混交度大小比数角尺度采伐木Voronoi图
Keywords:
 mingling neighborhood comparison uniform angle index harvested wood Voronoi diagram
分类号:
S757.1
文献标志码:
A
摘要:
 以吉林省汪清林业局金沟岭林场天然云冷杉林标准地内147株树木为研究对象,选用最近邻木取4的传统方法和Voronoi图来确定每株树木的最近邻木株数和树号,对2种方法计算出的混交度、大小比数和角尺度进行比较,在调整角尺度的基础上调整混交度和大小比数并结合临界距离确定采伐木,并且对Voronoi图的适用性进行评价。结果表明,根据2种确定最近邻木的方法计算出的混交度和大小比数较为一致,同为有效数据,但是最近邻木取4计算出的混交度和大小比数偏小;基于Voronoi图确定最近邻木计算的角尺度与最近邻木取4计算出的角尺度相差较大。根据Voronoi图计算的角尺度、混交度和大小比数选择采伐木并结合临界距离确定采伐木,基于Voronoi图计算的采伐后的角尺度增大,林木聚集程度增大,其他指标均改善,按照最近邻木取4计算的空间结构参数均改善。因此,根据Voronoi图计算混交度和大小比数是比较合理的,但是计算角尺度时误差较大,必须结合应用较为普遍的指标进行验证。

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