Study on Interspecific Association of Main Tree Species in Kunming Mixed Coniferous Forest
Here we selected 7 main tree species from 114 quadrates typical forest communities in Kunming as the research object,and carried out interspecies association analysis using variance ratio (VR) calculation method,X2 analysis,Oichiai index and coupling coefficient AC.VR analysis showed that the forest areas' community was in the temporarily stable early stages of succession,and interspecies general association was in significantly negative association.Thus,the positive and negative association between species pairs was mostly insignificant,and the positive association extended in the various species was weak.Species pairs with significant coupling relationship showed relatively close extent of association,of which,the positive association of Cyclobalanopsis glaucoides and Quercus acutissima,Huashan pine were extremely significant while the negative association of the Yunnan pine,Keteleeria evelyniana and Huashan pine were extremely significant.
interspecies associationVR calculationX2 testoichiai indexcoupling coefficient ACmixed coniferous forestKunming region
NETL
NSTL
万方数据
维普
