Niche and Interspecific Association of Dominant Species in Coniferous and Broad-leaved Mixed Forest in Suburban Forest Park
ZHONG Mingyue
GAN Juntao
YAO Lan
LYU Dacai
HUANG Dinggui
CAO Heng
Abstract：To explore the utilization strategy and survival mechanism of woody plant resources in special habitats,and to clarify the niche and interspecific association characteristics of dominant species in Ganxishan Forest Park,Lichuan City,Hubei Province,the research was carried out through field quadrat survey,combined with niche breadth,niche overlap,variance ratio method,chi-squared test,Pearson correlation test and Spearman rank correlation test.The results showed that:The importance value of Pinus massoniana was the largest,followed by Pinus armandii,and the niche breadth of Eurya breviflora was the largest,followed by Pinus massoniana,which were the main constructive species of the community.The importance value and niche breadth ranking are quite different.The niche overlap of dominant species was common,and the overlap index of 41.05%species pairs was greater than 0.50.The dominant tree species were significantly positively correlated.In the chi-squared test,97.89%of the species pairs were in a state of no association or no significant association.Pearson correlation test and Spearman rank correlation test were consistent with the results,and the interspecific association was weak.Most of the species in Ganxishan Forest Park were not strongly connected,and the competition of each dominant species for environmental resources was weak,and the community was in an unstable succession stage.
Keywords：dominant speciesnicheinterspecific associationscommunity stabilityforest parkconiferous and broad-leaved mixed forest
Publication Date：2026-03-20
Online Publishing Date：2026-03-26(First online date of this platform, not the publication date of the document)
Pages：7( 8-14 )