椴树红松林林隙边缘木特征研究  

Forest Gap Border Tree Characteristics in the Tilia amurensis-Pinus koraiensis Forest

作　　者：陈佳 曲美学 李丹 王亚飞 兰航宇 杨习锋 段文标[1] Chen Jia;Qu Meixue;Li Dan;Wang Yafei;Lan Hangyu;Yang Xifeng;Duan Wenbiao(College of Forestry,Northeast Forestry University,Harbin Heilongjiang 150040,China;Forestry Workstation,Forestry and Grassland Bureau of the Ewenki Autonomous Banner,Hulunbuir Inner Mongolia 021100,China)

机构地区：[1]东北林业大学林学院,黑龙江哈尔滨150040 [2]鄂温克族自治旗林业和草原局林业工作站,内蒙古呼伦贝尔021100

出　　处：《西南林业大学学报（自然科学）》2021年第2期93-99,共7页Journal of Southwest Forestry University：Natural Sciences

基　　金：国家自然科学基金项目(31670627,31270666)资助。

摘　　要：以黑龙江小兴安岭椴树红松林为对象,对椴树红松林林隙边缘木的数量、胸径级、高度级和偏冠率等数据进行分析,运用威布尔及正态模型拟合胸径级和高度级的多度分布,同时采用柯尔莫哥洛夫(K-S)检验法和卡方(χ2)检验法检验其拟合结果。结果表明:单个林隙的边缘木分布介于9~15株,以9株边缘木形成的林隙居多;1.04%的边缘木未出现偏冠现象,67.71%的边缘木偏冠率分布于0.5~0.7;树高在25 m以上的边缘木分布较广泛,在不同面积的林隙中均零星分布。林隙边缘木胸径级和高度级多度的分布均符合2种分布模型,而边缘木径级、高度级和偏冠率分布均因林隙面积和边缘木树种的不同而有所差异。This paper took Xiaoxing'an Mountains of Heilongjiang Province as the research area,we analyzed the data such as the number of trees,diameter at breast height classes,tree height classes and rate of crown inclination of gap border trees in Tilia amurensis-Pinus koraiensis forest.We fitted the distribution of DBH and height classes with Weibull and normal distribution models,and then verified their fitness by Kolmogorow-Smirnov test and Chi-square test.The results showed that the number of border trees in a single gap was between 9 and 15,and most of them were formed by 9 border trees;the RCI of 67.71% of GBTs ranged from 0.5 to 0.7 while 1.04% of GBTs had regular crowns.GBTs with tree height above 25 m were widely distributed and scattered in gaps of different area.The DBH and height classes of the distribution of abundance conforms to 2 distribution models.However,the distribution of DBH,height classes and RCI of GBTs vary with the difference of gap area and tree species at the gap.

关 键 词：椴树 红松 林隙 边缘木 偏冠率 威布尔分布 

分 类 号：S718.59[农业科学—林学]