| 北京山区人工侧柏林的径级结构与空间分布格局 |
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| 引用本文： | 张佳音,丁国栋,余新晓,史宇,贾丽娜. 北京山区人工侧柏林的径级结构与空间分布格局[J]. 浙江林学院学报, 2010, 27(1): 30-35 |
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| 作者姓名： | 张佳音 丁国栋 余新晓 史宇 贾丽娜 |
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| 作者单位： | 北京林业大学,土保持学院,土保持与荒漠化防治教育部重点实验室,北京,100083 |
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| 基金项目： | 国家林业局林业公益性行业科研项目 |
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| 摘 要： | 利用径级结构、空间分布格局、混交度和大小比等4个指标来分析北京十三陵林场人工侧柏Platycladus orientalis林公顷级样地的结构与空间分布格局。结果表明：①十三陵人工侧柏林胸径分布呈截尾正态分布，Ⅰ级和Ⅱ级个体占总株数的82.6%；②群落中侧柏种群呈高度集群分布，聚集度随胸径增长而下降；③全林的混交程度较低，平均混交度为0.15。各树种混交度侧柏为最低，其他伴生树种混交度以中度、强度和极强度为主；④优势种侧柏和大部分伴生树种大小比表现为劣态或绝对劣态。图1表4参15
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| 关 键 词： | 森林经理学 侧柏 人工林 林分结构 北京山区 |
Diameter structure and spatial distribution pattern of Platycladus orientalis plantation in Beijing mountain area |
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| ZHANG Jia-yin,DING Guo-dong,YU Xin-xiao,SHI Yu,JIA Li-na. Diameter structure and spatial distribution pattern of Platycladus orientalis plantation in Beijing mountain area[J]. Journal of Zhejiang Forestry College, 2010, 27(1): 30-35 |
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| Authors: | ZHANG Jia-yin DING Guo-dong YU Xin-xiao SHI Yu JIA Li-na |
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| Affiliation: | ZHANG Jia-yin,DING Guo-dong,YU Xin-xiao,SHI Yu,JIA Li-na(Key Laboratory of Soil , Water Conservation , Combating Desertification,Ministry of Education,College of Soil , Water Conservation,Beijing Forestry University,Beijing 100083,China) |
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| Abstract: | Four indexes(diameter structure,spatial distribution pattern,mingling,and neighborhood comparison) were used to analyze the spatial structure and spatial distribution pattern of the Platycladus orientalis plantation in Ming Tombs Forest Farm.The results showed that: 1) Diameter distribution of the P.orientalis plantation revealed truncated normal distribution.The quantity of grade I and II was about 82.6% of the total plants.2) The P.orientalis population of the community revealed highly clumped pattern.The... |
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| Keywords: | forest management Platycladus orientalis plantation structure Beijing mountain area |
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