|Table of Contents|

Interspecific Association and Stability of Main Tree Species of Cephalotaxus Oliveri Communities in Fodingshan of Guizhou Province(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2022年04期
Page:
74-80
Research Field:
生态学
Publishing date:

Info

Title:
Interspecific Association and Stability of Main Tree Species of Cephalotaxus Oliveri Communities in Fodingshan of Guizhou Province
Author(s):
Wang Kun1; 2; An Mingtai1; 2; Jin Yong1; 2; Wang Wei1; 2; Zhou Shenglun3; Zhang Tingbi3
(1.College of Forestry,Guizhou University,Guiyang 550025,China)
(2.Research Center for Biodiversity and Nature Conservation,Guizhou University,Guiyang 550025,China)
(3.Fodingshan National Nature Reserve Administration of Guizhou Province,Shiqian 555100,China)
Keywords:
Cephalotaxus oliveri; interspecific association; interspecific covariation; community stability; Fodingshan
PACS:
Q948
DOI:
10.3969/j.issn.1001-4616.2022.04.011
Abstract:
In order to explore the structure of Cephalotaxus oliveri community in Guizhou Fodingshan National Nature Reserve,10 shrub-layer species on the basis of importance values,and quantitatively researched interspecific associations and correlations were selected by using a set of methods,namely,variance ratio analysis,χ2 test,association coefficient(AC),Pearson's correlation coefficient test,Spearman's rank correlation coefficient test. In addition,the level of community stability was tested by using the Godron stability analysis. The results were as follows,(1)Cephalotaxus oliveri occupied an important position in the community.(2)There was no significant positive association among the 10 main tree species,and the correlation between species pairs was weak.(3)There was a competitive relationship between Camellia oleifera and Cephalotaxus oliveri,showing a significant negative covariance.(4)The coordinate intersection(37.98,62.02)obtained by M. Godron analysis was far from the stable point(20,80),indicating that the community was in an unstable state. Therefore,it is suggested to take measures such as thinning and rearing of tree species with significant negative covariant with grate appropriately,so as to increase its living space and promote population regeneration.

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Last Update: 2022-12-15