思茅区国有林场思茅松林分空间结构特征研究  

Spatial Structure Characteristics of Pinus kesiya Forest Stand in State-owned Forest Farm of Simao District

作　　者：杨启运 潘雨 林工茗 王华[2] 汤浩藩 李绍文 YANG Qiyun;PAN Yu;LIN Gongming;WANG Hua;TANG Haofan;LI Shaowen(Yunnan Institute of Forest Inventory and Planning,Kunming 650051,China;Jiangxi Academy of Forestry,Nanchang 330013,China;Sanmu State-owned Forest Farm of Simao District,Pu′er,Yunnan 530802,China)

机构地区：[1]云南省林业调查规划院,云南昆明650051 [2]江西省林业科学院,江西南昌330032 [3]普洱市思茅区三木国有林场,云南普洱530802

出　　处：《林业调查规划》2025年第2期16-22,共7页Forest Inventory and Planning

基　　金：云南省科技厅2023年第二批科技成果转化专项资金(530000231100001753720).

摘　　要：以思茅区国有林场思茅松林为研究对象,基于样地调查数据,采用角尺度、大小比数和混交度等3个空间结构参数,对思茅松林分和思茅松林木的空间结构特征进行分析。结果表明,林分平均角尺度为0.525,整体分布格局为聚集分布;林分平均大小比数为0.525,林木大小分化不明显,整体处于中庸状态;林分平均混交度为0.685,树种隔离程度较高。目标树种思茅松属随机分布,接近中度混交,62.2%的个体处于竞争优势或亚优势地位。Taking Pinus kesiya forest in state-owned forest farm of Simao district as the research object,the spatial structure characteristics of Pinus kesiya stand and Pinus kesiya forest were analyzed by using three spatial structure parameters of angular scale,neighborhood comparison and mixing degree based on the survey data of sample plots.The results showed that the average angular scale of the stand was 0.525,and the overall distribution pattern was clustered;the average neighborhood comparison was 0.525,the differentiation of forest size was not obvious,and the whole was in the mean state;the average mixing degree of stand was 0.685,and the isolation degree of tree species was high.The distribution of Pinus kesiya was randomly distributed,and the mingling was close to medium,and 62.2% of trees were dominant or subdominant in the stand.

关 键 词：思茅松 林分空间结构 角尺度 大小比数 混交度 思茅区国有林场 

分 类 号：S791.259[农业科学—林木遗传育种] S718.542[农业科学—林学]