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Forest and Grassland Resources Research >

2023 , Vol. 0 >Issue 4: 98 - 106

DOI: https://doi.org/10.13466/j.cnki.lyzygl.2023.04.012

Scientific Research

Characteristics of Suitable Communities of Hopea hainanensis, a Wild Plant with Extremely Small Populations in National Park of Hainan Tropical Rainforest

  • Wen LUO ,
  • Yanpeng LI ,
  • Han XU ,
  • Wenhao QIN ,
  • Daye LIU ,
  • Shiqin MO
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  • 1. Jianfengling Department of Hainan Tropical Rainforest National Park Administration,Ledong,Hainan 572542,China
    2. Research Institute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou 510520,China
    3. Jianfengling National Key Field Research Station for Tropical Forest Ecosystem in Hainan,Guangzhou 510520,China

Received date: 2023-05-30

  Revised date: 2023-06-27

  Online published: 2023-10-16

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Abstract

Hopea hainanensis is a national level Ⅰ key protected wild plant,and it also belongs to a wild plant with extremely small populations.It is urgent to conduct conservation research on Hopea hainanensis populations,because of the few adult trees in the wild and the severe recruitment limitation from seedling to sapling life stage.To understand the characteristics of suitable communities of Hopea hainanensis,7 sample plots of 20 m×20 m were set up in the primary forest and secondary forest in Jianfengling,Hainan.The similarities and differences in species composition,species diversity,importance value and niche width of Hopea hainanensis communities under the two habitat types were analyzed.The results showed that:1)A total of 294 species of woody plants belonging to 75 families and 168 genera were recorded in the suitable communities of Hopea hainanensis,with a large proportion of monotypic families,oligotypic families,monotypic genera and oligotypic genera.Lauraceae,Fagaceae,Rubiaceae and Symplocaceae are the dominant families in the Hopea hainanensis communities.2)There was no obvious dominant species in both the primary forest and the secondary forest,but the functional status of Hopea hainanensis was much stronger in the secondary forest.3)Hopea hainanensis showed a wide niche range in both primary forest and secondary forest,indicating that this species is more competitive for resources.In addition,the larger niche width in primary forest than that in secondary forest indicated that Hopea hainanensis is more adaptable to the environment of primary forest. Our results provide basic data for revealing the structure and development trend of the suitable community on Hopea hainanensis,which is of great significance for the restoration and protection of the wild plant with extremely small populations.

Key words： National Park of Hainan Tropical Rainforest; Hopea hainanensis; quantitative characteristics; species diversity; niche breadth; succession type

Cite this article

Wen LUO , Yanpeng LI , Han XU , Wenhao QIN , Daye LIU , Shiqin MO . Characteristics of Suitable Communities of Hopea hainanensis, a Wild Plant with Extremely Small Populations in National Park of Hainan Tropical Rainforest[J]. Forest and Grassland Resources Research, 2023 , 0(4) : 98 -106 . DOI: 10.13466/j.cnki.lyzygl.2023.04.012

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