[1]杨剑辉,欧弢,陈金龙,等.不同间伐梯度下云南松幼林林分结构及林木生长变化[J].浙江林业科技,2015,35(06):54-57.
 YANG Jian-hui,OU Tao,CHEN Jin-long,et al.Stand Structure and Tree Growth of Young Growth ofPinus yunnanensis under Different Thinning Intensities[J].Journal of Zhejiang Forestry Science and Technology,2015,35(06):54-57.
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不同间伐梯度下云南松幼林林分结构及林木生长变化()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
35
期数:
2015年06期
页码:
54-57
栏目:
研究简报
出版日期:
2015-12-30

文章信息/Info

Title:
Stand Structure and Tree Growth of Young Growth ofPinus yunnanensis under Different Thinning Intensities
作者:
杨剑辉1欧弢23陈金龙1陈洁1欧光龙2*王俊峰2
1. 云南省昆明市西山林场,云南 昆明 650100;2. 西南林业大学西南地区生物多样性保育国家林业局重点实验室,云南 昆明 650224;3. 昆明理工大学国土资源工程学院,云南 昆明 650093
Author(s):
YANG Jian-hui1OU Tao23CHEN Jin-long1CHEN Jie1OU Guang-long2WANG Jun-feng2
1. Kunming Xishan Forest Farm of Yunnan, Kunming 650100, China; 2. Key Laboratory for Biodiversity Conservation in Southwest China of State Forestry Administration, Southwest Forestry University, Kunming 650224, China; 3. Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China
关键词:
林分结构林木生长间伐梯度云南松幼林昆明西山林场
Keywords:
stand structure tree growth thinning intensity young growth of Pinus yunnanensis Xishan Forest Farm
分类号:
S753.5
文献标志码:
A
摘要:
2012年分别设置10%、20%和30%抚育间伐梯度和对照(不间伐)对昆明西山林场2001年过火地段上自然更新的云南松(Pinus yunnanensis)幼林进行抚育间伐,分析林分结构变化及林木生长情况。2012年和2014年结果表明:样地平均林分密度差异不大,在10 500 ~ 12 500株/hm2,除对照样地出现林分密度增加,这是由于随着林木生长,部分林木进入起测径阶,从而增加了林分密度值。通过采取不同抚育间伐强度措施后,林分平均高变化以对照和30%间伐强度为高,接近20%,而10%和20%两个间伐梯度增长仅略高于10%;林分优势高的变化则在三个梯度及对照之间变化不大,均增加16%以上,最高仅20.00%;而林分平均胸径变化差异较大,对照的仅增长10.96%,而30%的抚育间伐梯度下则增加41.77%,10%和20%两个梯度增加在30%左右;三种抚育强度下直径生长均显著高于对照,但10%和20%两个梯度下差异不显著。因此,抚育间伐管理对于林分高生长影响不大,而对林分直径生长起到较大的提升作用。
Abstract:
Experiments were conducted in 2012 at young growth of Pinus yunnanensis of burned-over area in 2001 in Xishan Forest Farm of Kunming, Yunnan province, with different thinning intensities(10%, 20% and 30%). Investigation in 2014 demonstrated that mean tree height growth increased by 20% at sample plot with 30% thinning and control(no thinning), while 10% at that with 10% and 20% thinning plots. Height growth of dominants had no great difference among different treatments and control, but mean DBH increment had significant difference, 10.96% at control, 41.77 at sample plot with 30% thinning, about 30% at sample plots with 20% and 10% thinning. The experiments indicated that different thinning treatments had no evident effect on tree height growth, but could improve diameter growth.

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备注/Memo

备注/Memo:
收稿日期:2015-06-02;修回日期:2015-10-08
基金项目:云南省教育厅基金(2012Y224);昆明市科技计划项目(昆科计字11N011104号)
作者简介:杨剑辉(1975-),男,云南晋宁人,工程师,从事森林经理研究及林场管理工作;*通讯作者。
更新日期/Last Update: 2015-12-20