| 湿地松枫香混交林林分空间结构特征研究 |
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| 引用本文： | 余韵冰,李志辉,唐洁,周维,李伦,彭其龙.湿地松枫香混交林林分空间结构特征研究[J].湖南林业科技,2014(1):60-65. |
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| 作者姓名： | 余韵冰 李志辉 唐洁 周维 李伦 彭其龙 |
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| 作者单位： | [1]中南林业科技大学,湖南长沙410004 [2]湖南省林业科学院,湖南长沙410004 |
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| 摘 要： | 于湖南省杜家冲林场湿地松枫香混交林内设置4块具有代表性的样地进行调查,利用混交度、大小比数、角尺度3种结构参数,分析其林分空间结构特征。结果表明:该林分的平均混交度为0.678,属于中度偏强混交,说明该森林群落较为复杂与稳定;林分平均角尺度为0.475,林木空间分布格局为均匀到随机分布;样地平均胸径大小比数的取值范围在0.27~0.87之间,且湿地松(0.27)枫香(0.47)香樟(0.59)木荷(0.87),说明各树种在样地中分化较严重,湿地松和枫香在样地中较占优势。
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| 关 键 词： | 空间结构 林分特征 重要值 混交度 大小比数 角尺度 |
Spatial structure of mixed Pinus elliottii and Liquidambar formosana stands |
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| YU Yunbing,LI Zhihui,TANG Jie,ZHOU Wei,LI Lun,PENG Qilong.Spatial structure of mixed Pinus elliottii and Liquidambar formosana stands[J].Hunan Forestry Science & Technology,2014(1):60-65. |
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| Authors: | YU Yunbing LI Zhihui TANG Jie ZHOU Wei LI Lun PENG Qilong |
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| Institution: | 1. College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China; 2. Hunan Academy of Forestry, Changsha 410004, China) |
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| Abstract: | Spatial structure characteristic of mixed Pinus elliottii and Liquidambarformosana stands was analys by detec- ting mingling intensity, neighborhood comparison, uniform angle index three structure parameters in Hunan Dujiachong Forest farm of four typical samples. Results indicated the average stand mingling was 0. 678, shows a moderate to intensive mingling degree, which indicat that forestry community is complex and stability ; the stand uniform angle index was 0. 475, the pattern of tree distribution was found to be between a uniform distribution and a random distribution; the stand neighborhood comparison of breast height size was between 0. 27 to 0. 87, and Pinus elliottii （0. 27 ） 〈 Liquidambarfor- mosana （0. 47） 〈 Cinnamomum camphora （0. 59） 〈 Schima superba （0. 87）, so that each species of the typical sam- ple shows intense differentiation, Pinus elliottii and Liquidambarformosana take dominant position in samples. |
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| Keywords: | spatial structure stand characteristics important index mingling intensity neighborhood comparison uni- form angle index |
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