| 北京山区森林生态系统三维褶皱指数 |
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| 引用本文： | 宋思铭,余新晓,张振明,黄枝英,赵阳,张艺,张艳.北京山区森林生态系统三维褶皱指数[J].东北林业大学学报,2011,39(7):54-56,62. |
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| 作者姓名： | 宋思铭 余新晓 张振明 黄枝英 赵阳 张艺 张艳 |
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| 作者单位： | 北京林业大学,北京,100083 |
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| 基金项目： | 国家“十二五”科技支撑计划项目，林业公益性行业科研项目 |
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| 摘 要： | 在北京山区9个自然保护区（林场）设置了10块公顷级标准地,通过对乔木基本因子的调查,运用Delaunay三角网技术,建立了森林生态系统三维褶皱指数.结果表明:在所选取的10块样地中,5号样地三维褶皱指数最大,森林生态系统结构最为稳定；9号样地三维褶皱指数最小,森林生态系统结构相对最不稳定.通过对比分析,森林生态系统三维...
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| 关 键 词： | 北京山区 森林生态系统 三维褶皱指数 |
Three-Dimensional Pleat Index of Forest Ecosystem in Beijing Mountainous Areas |
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| Song Siming,Yu Xinxiao,Zhang Zhenming,Huang Zhiying,Zhao Yang,Zhang Yi,Zhang Yan.Three-Dimensional Pleat Index of Forest Ecosystem in Beijing Mountainous Areas[J].Journal of Northeast Forestry University,2011,39(7):54-56,62. |
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| Authors: | Song Siming Yu Xinxiao Zhang Zhenming Huang Zhiying Zhao Yang Zhang Yi Zhang Yan |
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| Institution: | (College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,P.R.China) |
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| Abstract: | A study was conducted to establish a three-dimensional pleat index for forest ecosystem in Beijing mountainous areas using the technology of Delaunay triangulation.Ten pieces of hectare-grade sample plots in 9 nature reserves or forest farms were selected for a survey of the basic factors of arbors.Results showed that,in the 10 pieces of sample plots,the three-dimensional pleat index of plot 5 is the maximum,and the forest ecosystem structure is the most stable;while the three-dimensional pleat index of plot 9 is the minimum,and its structure is the most unstable.Comparative analysis shows that the three-dimensional pleat index can not only reflect the stability of forest ecosystem,but also make a breakthrough in tree species limit in calculation process. |
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| Keywords: | Beijing mountainous areas Forest ecosystem Three-dimensional pleat index |
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