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Forest and Grassland Resources Research >

2020 , Vol. 0 >Issue 1: 54 - 61

DOI: https://doi.org/10.13466/j.cnki.lyzygl.2020.01.008

Scientific Research

Analyses on Arbor Tree Species Distribution Pattern and Stand Spatial Structure

  • Heng WU ,
  • Liyan ZHU ,
  • Hailiang WANG ,
  • Zhijun LIU
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  • 1. Southwest Forestry University,Kunming 650224
    2. Kunming Survey & Design Institute of National Forestry and Grassland Administration,Kunming 650216;

Received date: 2019-11-12

  Revised date: 2019-12-08

  Online published: 2020-05-18

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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.

Key words： distribution of tree species; spatial structure; mixed degree; Gaussian distribution; forest ecology

Cite this article

Heng WU , Liyan ZHU , Hailiang WANG , Zhijun LIU . Analyses on Arbor Tree Species Distribution Pattern and Stand Spatial Structure[J]. Forest and Grassland Resources Research, 2020 , 0(1) : 54 -61 . DOI: 10.13466/j.cnki.lyzygl.2020.01.008

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