Neighbor diversity and interspecific association of Quercus mongolica

Abstract

Abstract: Neighbor diversity and interspecific association of Quercus mongolica were studied through point sample method. With the increase of plots number,species richness and Shannon Wiener (H') diversity index increased. At last they came colse to fixed value. LSvalue (average number of neighboring species) was first introduced in this article. Different sits had different PCvalue (value of interspecific association). According to PCvalue and LSvalue,accompany tree and shrub species of Quercus mongolica were determined. The similar environmental requirement and mutualism were the main reason why they live together. The result of interspecific association between Quercus mongolica and other species in 4 locations was analyzed. The reason why the diffe rences existed was that Quercus mongolica studied was in different succession stages.

Key words: Quercus mongolica, Coefficient of interspecific association (PC value), Neighbor diversity, LS va lue, burned area, soil organic carbon, soil dissolved organic carbon, soil microbial biomass carbon

CLC Number:

Q948.12

YU Shunli, MA Keping, LIU Canran, CHEN Lingzhi . Neighbor diversity and interspecific association of Quercus mongolica[J]. Chinese Journal of Applied Ecology, 2002, (3): 271-274.

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