A comparison study on the species diversity between the gap and non-gap in Jinyun Mountain

Abstract

Abstract: The species diversity and community stability of gap and non-gap stands in Jinyun Mountain were studied by using species richness index(d_GL),Shannon-Weiner index,Pielou evenness index(J),Simpson index(D),ecological dominance(λ), evenness-dominance-abundance index(Z) and community dominance(C).The results showed that the d GL,H',Jand Dcalculated by individuals numbers in gap are 12.14,4.62, 0.70,13.32,respectively.Shrub layer plays a greater role than other layers.The corresponding indices in non-gap stand are 6.32, 3.74, 0.66 and 8.16,respectively,which were lower than those in gap.Species diversity indices of the community were far higher in gap than in non-gap. However,ecological dominance and community dominance in gap were smaller than those in non-gap significantly.It suggested that species diversity of the community increased, and community stability decreased, due to the existence of gap formed by natural or human disturbance.

Key words: Species diversity, Community stability, Gap, Non-gap, Jinyun Mountain, antibiotic resistance genes, ecological risk, pig farm, bioaerosol, conditioned pathogen, sampling time

CLC Number:

S718.54

WANG Zhouping, LI Xuguang, SHI Shengyou, QI Daihua, HE Zhengming, XU Wenwei, DENG Xianbao. A comparison study on the species diversity between the gap and non-gap in Jinyun Mountain[J]. Chinese Journal of Applied Ecology, 2003, (1): 7-10.

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