| 基于冠幅比数的次生林林木分级研究 |
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| 引用本文： | 吕飞舟,石程远,朱光玉,吕勇.基于冠幅比数的次生林林木分级研究[J].西北林学院学报,2016,31(3):211-214. |
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| 作者姓名： | 吕飞舟 石程远 朱光玉 吕勇 |
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| 作者单位： | （1.中南林业科技大学，湖南 长沙 410004；2.广西林业设计院，广西 南宁 530011） |
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| 摘 要： | 为优化蒙栎次生林的林分结构和抚育间伐技术，以汪清林业局蒙栎次生林为研究对象，基于已有的汪清林业局蒙栎自由树冠幅模型，提出了林木冠幅比数的新概念，通过构建林木冠幅比数与林木竞争压力指数的相关模型CCI=1.07-0.001*CSI，采用林木冠幅比数替代林木竞争压力指数，提出一种简便实用的林木分级新方法，即当林木CCI≥0.77为优势木，CCI∈0.62，0.77）为亚优势木，CCI∈0.52，0.62）为中庸木，CCI<0.52为被压木。
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| 关 键 词： | 蒙栎 次生林 冠幅比数 竞争压力指数 林木分级 |
Classification of the Secondary Forest Based on Crown Comparison Index |
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| LYU Fei-zhou,SHI Cheng-yuan,ZHU Guang-yu,LYU Yong. Classification of the Secondary Forest Based on Crown Comparison Index[J].Journal of Northwest Forestry University,2016,31(3):211-214. |
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| Authors: | LYU Fei-zhou SHI Cheng-yuan ZHU Guang-yu LYU Yong |
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| Institution: | （1.Central South University of Forestry and Technology，Changsha,Hunan 410004，China；2.Guangxi Forest Planning Institute,Nanning,Guangxi 530011,China） |
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| Abstract: | For the optimization of the structure and adjustment of thinning technology of the secondary forest of Quercus mongolica in Wangqing,this article introduced a new concept of crown competition index based on existing crown model of the Q.mongolica free-tree,and a simple and practical new method of forest classification by building the correlation model of crown comparison index and competition stress index,CCI=1.07-0.001 CSI and by substituting crown comparison index for competition stress index.Based on this method,when the forest CCI is more than or equal to 0.77,it was catalogued to dominant tree,when CCI is 0.62,0.77),it is sub-dominant tree,CCI∈0.52,0.62) is for the mean tree,CCI<0.52 is for pressed tree. |
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| Keywords: | Quercus mongolicaQuercus mongolica secondary forest crown comparison index competition stress index forest classification |
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