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基于加权Voronoi图的林木竞争指数

李际平 房晓娜 封尧 孙华 曹小玉 赵春燕 李建军

李际平, 房晓娜, 封尧, 孙华, 曹小玉, 赵春燕, 李建军. 基于加权Voronoi图的林木竞争指数[J]. 北京林业大学学报, 2015, 37(3): 61-68. doi: 10.13332/j.1000-1522.20140310
引用本文: 李际平, 房晓娜, 封尧, 孙华, 曹小玉, 赵春燕, 李建军. 基于加权Voronoi图的林木竞争指数[J]. 北京林业大学学报, 2015, 37(3): 61-68. doi: 10.13332/j.1000-1522.20140310
LI Ji-ping, FANG Xiao-na, FENG Yao, SUN Hua, CAO Xiao-yu, ZHAO Chun-yan, LI Jian-jun. Tree competition indexes based on weighted Voronoi diagram[J]. Journal of Beijing Forestry University, 2015, 37(3): 61-68. doi: 10.13332/j.1000-1522.20140310
Citation: LI Ji-ping, FANG Xiao-na, FENG Yao, SUN Hua, CAO Xiao-yu, ZHAO Chun-yan, LI Jian-jun. Tree competition indexes based on weighted Voronoi diagram[J]. Journal of Beijing Forestry University, 2015, 37(3): 61-68. doi: 10.13332/j.1000-1522.20140310

基于加权Voronoi图的林木竞争指数

doi: 10.13332/j.1000-1522.20140310
基金项目: 

“十二五”国家科技支撑计划项目(2012BAD22B0505)、湖南省研究生科研创新项目(CX2014B341)、中南林业科技大学研究生科技创新基金项目(CX2014B24)

详细信息
    作者简介:

    第一作者: 李际平,教授,博士生导师。主要研究方向:林业系统工程、生物质能源。 Email: lijp0625@qq.com 地址: 410004湖南省长沙市天心区韶山南路498号中南林业科技大学林学院。

Tree competition indexes based on weighted Voronoi diagram

  • 摘要: 以福寿山林场25年生的杉木生态公益林为研究对象,通过分析林木竞争指数与胸径生长因子的相关关系,得出二者为负相关,从而确定加权Voronoi图的权重为胸径倒数(W),借助Arcgis软件里的加权Voronoi图工具,通过加权Voronoi图的方法来确定竞争单元,提出基于加权Voronoi图的W_V_Hegyi竞争指数,最后将W_V_Hegyi竞争指数与Hegyi、V_Hegyi竞争指数进行对比分析,结果表明:1) 3种竞争指数与胸径相关性强弱排序为:W_V_HegyiV_HegyiHegyi;2) 3种竞争指数与胸径服从幂函数关系,曲线拟合度排序为:W_V_HegyiV_HegyiHegyi;3) 样地竞争指数平均值排序均为:V_HegyiW_V_HegyiHegyi。通过以上比较分析证明,W_V_Hegyi竞争指数比Hegyi、V_Hegyi竞争指数能更准确地反映林木间的竞争关系。

     

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出版历程
  • 收稿日期:  2014-09-15
  • 修回日期:  2014-11-13
  • 刊出日期:  2015-03-31

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