[A comparison study on the species diversity between the gap and non-gap in Jinyun Mountain].
The species diversity and community stability of gap and non-gap stands in Jinyun Mountain were studied by using species richness index(dGL), Shannon-Weiner index, Pielou evenness index(J), Simpson index(D), ecological dominance(lambda), evenness-dominance-abundance index(Z) and community dominance(C). The results showed that the dGL, H', J and D calculated 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.
College of Life Science, Southwest Normal University, Chongqing 400715, China. wangzp1974@163.com
Zhouping
Z
Wang
Xuguang
X
Li
Shengyou
S
Shi
Daihua
D
Qi
Zhengming
Z
He
Wenwei
W
Xu
Xianbao
X
Deng
D000465:Algorithms; D000531:Altitude; D002681:China; D017753:Ecosystem; D063245:Plant Development; D013045:Species Specificity