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| 林木相对直径变化研究 | |
| 引用本文： | 邓成,吕勇,雷渊才,张江. 林木相对直径变化研究[J]. 林业调查规划, 2010, 35(6): 6-8. DOI: 10.3969/j.issn.1671-3168.2010.06.002 |
| 作者姓名： | 邓成 吕勇 雷渊才 张江 |
| 作者单位： | 1. 广西林业勘测设计院,广西南宁,530011 2. 中南林业科技大学,湖南长沙,410004 3. 中国林业科学研究院,北京,100091 |
| 基金项目： | 林业科技支撑计划任务项目 |
| 摘 要： | 采用广西省山区马尾松和杉木的连清复测样地数据,在不考虑进界木和枯死木的情况下,通过计算不同时期林木相对直径的极差,做不同时期林木相对直径的单因素方差分析和年份与相对直径2因素的相关分析以及进行不同时期林木相对直径的成对数据T检验,研究了纯林林分单木相对直径随时间的变化情况.研究结果表明,同一林分中大多数单木的相对直径不随时间而变化或变化很小,且一株单木在2个不同时期的直径比值与其他林木在这2个相应时期的直径比值相等. |
| 关 键 词： | 林木直径 林木相对直径 林分平均直径 变化规律 |
Variation of Forest Trees Relative Diameter |
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| DENG Cheng,LV Yong,LEI Yuan-Cai,ZHANG Jiang. Variation of Forest Trees Relative Diameter[J]. Forest Inventory and Planning, 2010, 35(6): 6-8. DOI: 10.3969/j.issn.1671-3168.2010.06.002 | |
| Authors: | DENG Cheng LV Yong LEI Yuan-Cai ZHANG Jiang |
| Affiliation: | 1.Guangxi Forestry Inventory and Planning Institute,Nanning 530011,Chain;2.Central South University of Forestry and Technology,Changsha 410004,Chain;3.Chinese Academy of Forestry,Beijing 100091,Chain) |
| Abstract: | Without considering ingrowth and dead trees,using the retest plots data of Pinus massoniana and Chinese Fir of the mountainous area of Guangxi,by calculating the maximum difference of relative diameter of trees in different periods,variance of the relative diameter of trees in different periods and the two correlation factors of years and relative diameter were analyzed.The paired data T test of relative diameter of trees at different times were conducted.Pure forest stands of individual tree relative diameter changes over time were studied.The results showed that in one stand,most relative diameter of the individual tree was not vary or vary little over time,and the diameter ratios of each individual tree in two periods were equal to the diameter ratios of other trees in the corresponding two periods. |
| Keywords: | forest tree diameter forest tree relative diameter forest stand average diameter variation |
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