[1]王芸,赵鹏祥,杨永辉,等. 间伐对华北落叶松林林分结构稳定性的影响[J].西北林学院学报,2022,37(2):193-199.[doi:10.3969/j.issn.1001-7461.2022.02.27]
　WANG Yun,ZHAO Peng-xiang,YANG Yong-hui,et al. Effects of Thinning on the Stand Structure Stability of Larix principis-rupprechtii Forest[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2022,37(2):193-199.[doi:10.3969/j.issn.1001-7461.2022.02.27]
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 间伐对华北落叶松林林分结构稳定性的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第37卷
期数:
2022年第2期
页码:
193-199
栏目:
出版日期:
2022-03-31

文章信息/Info

Title:
 Effects of Thinning on the Stand Structure Stability of Larix principis-rupprechtii Forest
文章编号:
1001-7461(2022)02-0193-07
作者:
 王芸1; 赵鹏祥2; 杨永辉3; 李治国4
 （1.河北开放大学 教务处，河北 石家庄 050080；2.西北农林科技大学 林学院，陕西 杨陵 712100；3.河南省农业科学院 植物营养与资源环境研究所，河南 郑州 450002；4.河北博嘉农业有限公司，河北 石家庄 050080）
Author(s):
 WANG Yun1; ZHAO Peng-xiang2; YANG Yong-hui3; LI Zhi-guo4
 (1.Academic Affairs Office,Hebei Open University,Shijiazhuang 050080,Hebei,China; 2.College of Forestry,Northwest A&F University,Yangling 712100,Shaanxi,China; 3.Institute of Plant Nutrition & Resource Environment,Henan Academy of Agricultural Sciences,Zhengzhou 450002,Henai,China; 4.Hebei Bojia Agriculture Co.,Ltd.,Shijiazhuang 050080,Hebei,China)
关键词:
 ; 间伐强度; 华北落叶松; 林分物种结构; 林分空间结构
Keywords:
 ; thinning intensity;  Larix principis-rupprechtii;  stand species’ structure;  stand spatial structure
分类号:
S791.259
DOI:
10.3969/j.issn.1001-7461.2022.02.27
文献标志码:
A
摘要:
 为研究间伐对华北落叶松林分结构稳定性的影响，使得森林结构分布更加合理，对关帝山林区的华北落叶松采取不同抚育强度的间伐，测定林分内物种丰富度和生长指标，依托胸径计算不同间伐样地的角尺度、混交度和大小比数，分析间伐对林分物种结构和空间结构参数的影响，综合评价森林结构的稳定性。结果表明，随着间伐强度的增加，林分物种多样性各参数无明显变化规律，但当强度大于17%时整体物种多样性优于对照样地，角尺度呈先下降后上升再下降的趋势，混交度呈先上升趋于稳定后下降的趋势，大小比增加并趋于稳定。由此可知，17%以上的间伐强度能够改善林分整体物种结构，13%~17%的间伐强度适用于调整华北落叶松林分分布状态，间伐对于改善林分内树种组成结构具有积极促进作用，间伐使得林分内树木竞争减弱。
Abstract:
 In order to study the effect of thinning on the stand structure of Larix principis-rupprechtii to make the distribution of forest structure more reasonable,thinning management with different intensities was conducted in the L.principis-rupprechtii forest occurring in Guandi Mountain.The diameter at breast height (DBH) of the trees and species richness in the stand were measured.The angle scale,mixing degree and size ratio of different thinning plots were calculated based on DBH.The influences of thinning on the structures of the stand specie and spatial structure parameters were analyzed.The stability of the forest structure was comprehensively evaluated.The results showed that with the increase of thinning intensity,there was no obvious change rule in the parameters of species diversity,but when the intensity exceeded 17%,the overall species diversity was better than the control plot; the angle scale decreased at first,increased and then decreased; the mingling degree increased at first,tended to be stable and then decreased; and the size ratio increased and tended to be stable.It can be concluded that over 17% thinning intensity can improve the overall species structure of the stand.Thinning intensities of 13%-17% are suitable for adjusting the distribution of L.principis-rupprechtii forest.Thinning can improve the composition of tree species in the forest,and make the competition of trees in the stand weaken.

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备注/Memo

备注/Memo:
 收稿日期：2020-11-30修回日期：2021-06-10
基金项目：河北省社科基金项目（HB17JY030）；国家重点研发计划课题(20170301102)。
第一作者：王芸，博士，讲师。研究方向：3S技术在资源环境中的应用。E-mail：forest688@163.com
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