Abstract: A series of parameters for the interspecific correlation of Dacrycarpus imbricatus plantation community,including the importance value ,collectivity variance ratio,and χ2-test based on a 2×2 contingency table,were analyzed.The results showed that tree species was rich and the importance values distribution was dispersive in the community.The positive association of collectivity variance ratio in total was significant and a majority of interspecific associations were unremarkable.Between Dacrycarpus imbricatus and others,a majority of species pairs were not significant association and few were remarkable,which indicated that Dacrycarpus imbricatus has stronger ecological adaptability and the plantation community succession are evolving towards natural secondary forest.

Key words: Temporal-spatial scale, Desertification, Landscape structure, Principal component analysis