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FOREST RESOURCES WANAGEMENT ›› 2022›› Issue (3): 89-95.doi: 10.13466/j.cnki.lyzygl.2022.03.014

• Scientific Research • Previous Articles     Next Articles

Shrub Communities and Species Diversity Characteristics in the Southern Subtropical Zone in Guangxi

LU Guangrong1(), CHEN Fangqing1(), LÜ Kun1, WU Yu1, HUANG Xiangfeng2, WEN Ruge1   

  1. 1. China Three Gorges University,Yichang,Hubei 443002,China
    2. Three Gorges Botanical Garden Management Office,Yichang,Hubei 443111,China
  • Received:2022-03-08 Revised:2022-05-31 Online:2022-06-28 Published:2022-08-04
  • Contact: CHEN Fangqing E-mail:396517937@qq.com;fqchen@ctgu.edu.cn

Abstract:

The species composition,community structure,floristic distribution,life forms and species diversity of 10 widely distributed shrub communities in the southern subtropical zone of Guangxi were investigated and analyzed in order to reveal the structure and diversity of shrub communities.The results showed that 105 species were distributed in the investigated shrub communities,including 64 shrub species and 41 herbaceous species,belonging to 96 genera and 47 families.The dominant shrub families were Fabaceae and Rosaceae,with 14.06% and 10.94% of the total species,respectively.The dominant herbaceous families were Poaceae and Asteraceae,with 29.27% and 21.95% of the total species,respectively.The species richness index (S) was the highest in the community of Paliurusramosissimus and Pterolobium punctatum,and the lowest in the community of Sageretia thea and Mimosa bimucronata.The Simpson diversity index (D),Shannon-Wiener diversity index (H ') and Pielou evenness index (J) were higher in Pterolobium punctatum community.The floristic composition of tropical distribution was the highest,accounting for 70.79%.The life-form composition was dominated by the phanerophytes accounting for 59.05%.The shrub community in this zonewas rich in plant species and relatively dispersed,with typical characteristics of southern subtropical zone.

Key words: shrub community, southern subtropical zone, species biodiversity, Guangxi

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