Spatial variations in species diversity of mid-subtropical evergreen broad-leaved forest community in Gutianshan National Nature Reserve

LU Wei 1,2 YU Jianping3 REN Haibao2 MI Xiangcheng2 CHEN Jianhua1 MA Keping2

(1.College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004)
(2.State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093)
(3.Ecological Resource Protection Center, Qianjiangyuan National Park, Kaihua, Zhejiang 324300)

【Abstract】Many studies had examined the patterns and mechanisms underlying the structure of mid-subtropical forest community, but spatial variation in species diversity had rarely been investigated. We examined spatial variations in α- and β-diversity among and between 24 subplots of 1-hm2 each within the 24 hm2 forest dynamics plot in Gutianshan National Nature Reserve. We found that (1) the top two dominant species were the same for almost all the subplots, but the third dominants differed greatly; (2) α-diversity varied greatly among subplots: the total number of individuals showed the largest differences, followed by species richness, Shannon-Wiener index, and Pielou evenness index; (3) species richness showed no correlation with the total abundance and Pielou evenness index but was positively correlated with the Shannon-Wiener index, which was positively correlated with the Pielou evenness; (4) there was high species turnover between neighboring subplots, but these patterns were not consistent with the spatial variation in species richness. Our results highlight the importance of spatial scales for assessing community structure and mechanisms of community assembly. Since forest communities are influenced by ecological processes at multiple scales, large-scale plots may be better than small-scale plots to explore multiple mechanisms of community assembly.

【Keywords】 Gutianshan; mid-subtropical evergreen broad-leaved forest; alpha diversity; beta diversity; spatial variation;

【DOI】

【Funds】 National Natural Science Foundation of China (31570546)

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This Article

ISSN:1005-0094

CN: 11-3247/Q

Vol 26, No. 09, Pages 1023-1028

September 2018

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Article Outline

Abstract

  • 1 Materials and methods
  • 2 Results
  • 3 Discussion
  • Supplementary Material
  • References