[1]褚欣,潘萍,欧阳勋志*,等. 闽楠天然次生林林木综合竞争指数研究[J].西北林学院学报,2019,34(4):199-205.[doi:10.3969/j.issn.1001-7461.2019.04.30]
　CHU Xin,PAN Ping,OUYANG Xun-zhi*,et al. Comprehensive Competition Index of Natural Secondary Phoebe bournei Forest[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2019,34(4):199-205.[doi:10.3969/j.issn.1001-7461.2019.04.30]
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 闽楠天然次生林林木综合竞争指数研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第34卷
期数:
2019年第4期
页码:
199-205
栏目:
出版日期:
2019-07-31

文章信息/Info

Title:
 Comprehensive Competition Index of Natural Secondary Phoebe bournei Forest
文章编号:
1001-7461(2019)04-0199-07
作者:
 褚欣; 潘萍; 欧阳勋志*; 臧颢; 吴自荣; 汪清; 单凯丽
 （江西农业大学 林学院，江西 南昌 330045）
Author(s):
 CHU Xin; PAN Ping; OUYANG Xun-zhi*; ZANG Hao; WU Zi-rong; WANG Qing; SHAN Kai-li
 (College of Forestry,Jiangxi Agricultural University,Nanchang 330045,Jiangxi,China)
关键词:
 ; 闽楠; 次生林; 竞争单元; 综合竞争指数
Keywords:
Phoebe bournei;  secondary forest;  competition unit;  comprehensive competition index
分类号:
S757.3
DOI:
10.3969/j.issn.1001-7461.2019.04.30
文献标志码:
A
摘要:
 以江西省吉安市闽楠天然次生林作为研究对象，通过八邻域平移法确定对象木，分别采用四邻体法、Voronoi图法选取竞争木，并基于Hegyi简单竞争指数重新构建含胸径、树高、冠幅及林木间距等因子的综合竞争指数，利用Pearson相关分析法和曲线拟合比较分析不同方法选取竞争木的简单竞争指数与综合竞争指数的优劣。结果表明：1）简单竞争指数和综合竞争指数与胸径、树高及冠幅之间均呈极显著负相关（P<0.01）；2）综合竞争指数与胸径、树高及冠幅的相关性和拟合度均高于简单竞争指数；3）基于Voronoi图法构建的简单竞争指数和综合竞争指数与胸径、树高及冠幅的相关性和拟合度均高于基于四邻体法构建的简单竞争指数和综合竞争指数。研究结果可为闽楠天然次生林的合理经营与保护等措施的制订提供参考依据。
Abstract:
 Based on the typical sample investigation on the natural secondary forest，the eight neighbourhood translation method was used to determine the objective trees.The competitive trees were selected by the methods of four neighbourhoods and Voronoi map.Based on the Hegyi simple competition index，the comprehensive competition indexes of the factors such as DBH，tree height，crown width and tree spacing were reconstructed．A comparative analysis was made between the simple competitive index and comprehensive competitive index of different selection methods of the competitive trees．The main results and conclusions were as follows：1) There was a significant negative correlation between the simple competition index and comprehensive competition index with the DBH，tree height and crown width (P<0.01)．2) The correlations and the fitting degrees between the comprehensive competition index with the DBH，tree height and crown width were all higher than that of simple competition index．3) The correlations and the fitting degrees between the simple competition index and comprehensive competition index based on the Voronoi map were all higher than the simple competition index and comprehensive competition index constructed by the four neighborhood method.

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备注/Memo

备注/Memo:
 收稿日期：2018-09-03修回日期：2018-12-27
基金项目：林业公益性行业科研专项（201504301）；国家自然科学基金（31360181，31760207）。
作者简介：褚欣，女，硕士在读，研究方向：森林资源监测与管理。E-mail：chuxin8_2015@163.com
*通信作者：欧阳勋志，男，博士生导师，研究方向：森林资源监测与管理。E-mail：oyxz_2003@hotmail.com
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