[1]王千雪,王烁*,韩大校,等. 大兴安岭落叶松毛虫不同危害程度虫害木结构特征[J].西北林学院学报,2024,39(1):95-99.[doi:10.3969/j.issn.1001-7461.2024.01.13]
　WANG Qian-xue,WANG Shuo*,HAN Da-xiao,et al. Structure Characteristics of Dendrolimus superans Damaged Trees With Different Damage Degrees in Daxing’an Mountain[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2024,39(1):95-99.[doi:10.3969/j.issn.1001-7461.2024.01.13]
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 大兴安岭落叶松毛虫不同危害程度虫害木结构特征()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第39卷
期数:
2024年第1期
页码:
95-99
栏目:
出版日期:
2024-01-31

文章信息/Info

Title:
 Structure Characteristics of Dendrolimus superans Damaged Trees With Different Damage Degrees in Daxing’an Mountain
文章编号:
1001-7461(2024)01-0095-05
作者:
 王千雪1; 2; 王烁1; 2*; 韩大校1; 2; 于宏影1; 2; 崔嵘1; 2; 黄艳1; 2; 丛日征1; 2
 （1.国家林业和草原局 哈尔滨林业机械研究所，黑龙江 哈尔滨 150086；2.中国林业科学研究院 寒温带林业研究中心，黑龙江 哈尔滨 150086）
Author(s):
 WANG Qian-xue1; 2; WANG Shuo1; 2*; HAN Da-xiao1; 2; YU Hong-ying1; 2; CUI Rong1; 2; HUANG Yan1; 2; CONG Ri-zheng1; 2
 (1.Harbin Research Institute of Forestry Machinery,National Forestry and Grassland Administration,Harbin 150086,Heilongjiang,China; 2.Research Center of Cold Temperate Forestry,Chinese Academy of Forestry,Harbin 150086,Heilongjiang,China)
关键词:
 ; 落叶松毛虫; 空间结构; 虫害木
Keywords:
Dendrolimus superans;  spatial structure;  pest damaged tree
分类号:
S763.3
DOI:
10.3969/j.issn.1001-7461.2024.01.13
文献标志码:
A
摘要:
 以落叶松毛虫林分为研究对象，通过林分空间结构参数一元分布和二元分布的分析方法，对落叶松毛虫不同危害程度虫害木的结构特征进行分析。结果表明，极轻度危害林木的角尺度为0.470，分布格局为均匀分布，轻度危害林木的角尺度为0.495，分布格局为随机分布，中度危害林木的角尺度为0.544，分布格局为聚集分布，落叶松毛虫危害程度越高，林分角尺度越大；极轻度危害、轻度危害和中度危害林木的大小比数分别为0.483、 0.495和0.539，危害程度越高，林分大小比数越大。极轻度危害、轻度危害和中度危害虫害木最近4株相邻木中，同样为虫害木的比例分别为57.2%、82.1%和91.1%，危害程度越高，虫害木连续分布的情况越多；不同危害程度虫害木的角尺度-大小比数二元分布特征和虫害木比-大小比数二元分布特征有所差异，虫害木比-角尺度二元分布特征差异不明显。在森林经营活动中可以通过调整林分空间结构，降低林分角尺度减少聚集分布、降低林木大小比数改善林木生长状况，从而达到抑制虫害爆发的目的。
Abstract:
 Taking the Larix gmelinii stands damaged by Dendrolimus superans as the research object,the spatial structure characteristics of the damaged trees with different damage degrees were analyzed by univariate and bivariate distribution analysis method.The results showed that the uniform angle index (UAI) of extremely lightly-damaged trees was 0.470,and the distribution pattern was uniform.The UAI of slightly-damaged trees was 0.495,and the distribution pattern was random.The UAI of moderately-damaged trees was 0.544,and the distribution pattern was aggregation distribution.The higher damage degree of the stand,the higher uniform angle index.The neighborhood comparison of extremely lightly-damaged,slightly-damaged and moderately-damaged was 0.483,0.495 and 0.539,indicating the higher degree of the stand,the higher neighbourhood comparison.Among the four adjacent trees with extremely lightly-damaged,slightly-damaged and moderately-damaged trees,the proportions of damaged trees was 57.2%,82.1% and 91.1%.The greater the degree of damage,the more cases of continuous distribution of damaged trees.The bivariate distribution characteristics of the uniform angle index and neighbourhood comparison of the trees with different damage degrees were different from those of damaged tree ratio and neighbourhood comparison,but the difference of bivariate distribution characteristics of the damage tree radio and uniform angle index were not obviously.In forest management activities,we can adjust the spatial structure of the stand,reduce the stand uniform angle index and the neighbourhood comparison to improve the growth status of trees,so as to achieve the purpose of controlling the outbreak of pests.

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备注/Memo

备注/Memo:
 收稿日期：2022-12-03修回日期：2023-04-04
基金项目：中央级公益性科研院所基本科研业务费专项(CAFYBB2020MA004)。
第一作者：王千雪，工程师。研究方向：森林培育。E-mail：wqx890711@163.com
*通信作者：王烁，助理研究员。研究方向：森林经理。E-mail：2529853280@qq.com
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