Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2023, Vol. 44 ›› Issue (5): 1052-1061.DOI: 10.3969/j.issn.1000-2561.2023.05.020

• Ecology & Bibliometrics • Previous Articles     Next Articles

Species Diversity and Structure of Tree Population in Dagangshan

ZHANG Yutong1,2, LIU Hua1,2,*(), CHEN Yongfu1,2, ZHAO Feng1,2, LING Chengxing1,2, ZENG Haowei1,2, MA Yongkang1,2   

  1. 1. Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China
    2. Key Laboratory of Forestry Remote Sensing and Information System, National Forestry and Grassland Administration, Beijing 100091, China
  • Received:2022-05-17 Revised:2022-07-25 Online:2023-05-25 Published:2023-06-07
  • Contact: *LIU Hua,E-mail:liuhua@ifrit.ac.cn

Abstract:

Species diversity is the most basic level of biodiversity, which not only reflects the richness of biological species, but also the spatial scope of species evolution and the ecological adaptability to specific environments. Structure is the basis for studying the historical dynamics of plants, and while understanding and clarifying the growth competition relationship between species, it reflects the trend of community succession. Based on the results of 62 plots with a total area of 3.72 hm2, the species diversity and structure of tree populations of Dagangshan were analyzed. There were 486 species of plants in the community, belonging to 286 genera of 120 families, of which single species accounted for 66.43% of the total, and China fir were in a dominant position in the community. Dagangshan is located in the subtropical region and has the nature of transition zone. The genus of seed plants included 13 distribution types, and 9 genera with endemic components in China. Shannon-Weiner index, Simpson index and Pielou index were basically the same in the distribution trend of each growth layer. The advantage of shrub layer was obvious. The herbaceous layer was slightly higher than the arbor layer. The overall species diversity index of the community was higher and the species were more abundant. By sample belt, the 2nd sample was the most abundant, and the 1st sample was slightly lower than the others. However, the community similarity was the highest in the 1st and 2nd belts, and the difference in species diversity indices in the 3rd and 4th samples was small, but the community differences were the largest.

Key words: species diversity, population structure, species composition, Dagangshan

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