应用生态学报2017，Vol.28Issue(11)：3487-3493,7.DOI:10.13287/j.1001-9332.201711.003
太白山巴山冷杉林主要树种与开花秦岭箭竹的空间点格局分析
Spatial point pattern analysis of main trees and flowering Fargesia qinlingensis in Abies fargesii forests in Mt.Taibai of the Qinling Mountains, China
摘要
Abstract
In Abies fargesii forests of the giant panda's habitats in Mt.Taibai,the spatial distribution patterns and interspecific associations of main tree species and their spatial associations with the understory flowering Fargesia qinlingensis were analyzed at multiple scales by univariate and bivariate O-ring function in point pattern analysis.The results showed that in the A.fargesii forest,the number of A.fargesii was largest but its population structure was in decline.The population of Betula platyphylla was relatively young,with a stable population structure,while the population of B.albo-sinensis declined.The three populations showed aggregated distributions at small scales and gradually showed random distributions with increasing spatial scales.Spatial associations among tree species were mainly showed at small scales and gradually became not spatially associated with increasing scale.A.fargesii and B.platyphylla were positively associated with flowering F.qinlingensis at large and medium scales,whereas B.albo-sinensis showed negatively associated with flowering F.qinlingensis at large and medium scales.The interaction between trees and F.qinlingensis in the habitats of giant panda promoted the dynamic succession and development of forests,which changed the environment of giant panda's habitats in Qinling.关键词
种群结构/点格局分析/种间关联Key words
population structure/point pattern analysis/interspecific association引用本文复制引用
李国春,宋华东,李琦,卜书海..太白山巴山冷杉林主要树种与开花秦岭箭竹的空间点格局分析[J].应用生态学报,2017,28(11):3487-3493,7.基金项目
本文由国家林业局大熊猫国际合作项目(AD1411)资助 This work was supported by the State Forestry Administration's International Cooperation Project for Giant Panda(AD1411). （AD1411）
