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FOREST RESOURCES WANAGEMENT ›› 2021, Vol. 0 ›› Issue (4): 62-68.doi: 10.13466/j.cnki.lyzygl.2021.04.009

• Scientific Research • Previous Articles     Next Articles

A New Concept “Tree Species Mingling” for Mixed Degree of Stands Based on Tree Species Spectrum

ZHANG Ke1(), FENG Sisi2, HUANG Lang2, LI Jianjun2()   

  1. 1. Zhejiang Forestry Information Propaganda Service Center,Hangzhou 310020,China
    2. College of Computer and Information Engineering,Central South University of Forestry and Technology,Changsha 410000,China
  • Received:2021-05-20 Revised:2021-07-03 Online:2021-08-28 Published:2021-09-26
  • Contact: LI Jianjun E-mail:2557237388@qq.com;lijianjun_21@163.com

Abstract:

Spatial segregation degree of tree species is an important content in the study of stand spatial structure,which is usually described by the mingling degree.The existing mingling degree indices only have the same species or different species results when describing the probability that the object tree and the nearest neighbor tree are different species,which cannot fully explain the mingling degree of tree species.Based on the traditional mingling degree and tree species pedigree relationship,the concept of tree species mingling degree was put forward in this paper.The traditional mingling degree and tree species mingling degree were compared and analyzed with 25 sample plots in 5 forest regions of Hunan Province,and the stand simulation and optimization were carried out by using tree species mingling degree.The results showed that there was a strong correlation between tree species mingling degree and traditional mingling degree,and tree species mingling can further refine the isolation degree of tree species in the structural unit,which can be used for the evaluation and optimization of stand spatial structure.

Key words: forest biological characteristics, tree species spatial segregation degree, mingling degree, tree species pedigree, tree species mingling degree

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