| 乔木树种分布格局和林分空间结构分析 |
| |
| 引用本文： | 吴恒,朱丽艳,王海亮,刘智军.乔木树种分布格局和林分空间结构分析[J].林业资源管理,2020(1):54-61. |
| |
| 作者姓名： | 吴恒 朱丽艳 王海亮 刘智军 |
| |
| 作者单位： | 西南林业大学,昆明650224;国家林业和草原局昆明勘察设计院,昆明650216 |
| |
| 摘 要： | 乔木作为构成森林植被的主体,是森林生态系统稳定性的重要因素。分析林分空间结构和乔木树种分布格局对森林生态系统稳定性保护、可持续经营、营造林工程树种选择等具有重要意义。运用森林资源清查数据和植被样方专项调查数据进行聚类分析,计算树种分布格局指数和林分结构特征指数,并采用高斯分布拟合结构特征指标概率分布,旨在为森林生态系统保护和经营提供参考。结果表明,主要乔木树种分布呈聚集分布;乔木林混交度指数Mci离散程度大于树种空间结构TSS指数;TSS指数分布呈左偏截尾正态分布,Mci指数分布呈倒"J"型分布,指数的波动和持续稳定可能与人工营造林和天然林保护有关。
|
| 关 键 词： | 树种分布 空间结构 混交度 高斯分布 森林生态 |
Analyses on Arbor Tree Species Distribution Pattern and Stand Spatial Structure |
| |
| WU Heng,ZHU Liyan,WANG Hailiang,LIU Zhijun.Analyses on Arbor Tree Species Distribution Pattern and Stand Spatial Structure[J].Forest Resources Management,2020(1):54-61. |
| |
| Authors: | WU Heng ZHU Liyan WANG Hailiang LIU Zhijun |
| |
| Institution: | (Southwest Forestry University,Kunming 650224;Kunming Survey&Design Institute of National Forestry and Grassland Administration,Kunming 650216) |
| |
| Abstract: | Trees are an important factor in the stablity of forest ecosystem.The analysis of stand structure is of great significance to the stability protection and sustainable management of forest ecosystem.In this paper,the ninth national forest resources inventory data and special survey data of vegetation quadrat were used for cluster analysis to calculate tree species distribution pattern index and stand structure characteristic index,and the Gaussian distribution was used to fit the probability distribution of structure characteristic index,so as to provide a reference for forest ecosystem protection and management.The results show that the distribution of main tree species is clustered.The dispersion degree of arbor forest mixture index Mci is greater than that of tree species spatial structure TSS index. TSS index distribution shows the left truncated normal distribution,and the Mci index distribution shows the inverted "J" distribution.The fluctuation and continuous stability of the index may be related to artificial afforestation and natural forest protection. |
| |
| Keywords: | distribution of tree species spatial structure mixed degree Gaussian distribution forest ecology |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
