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FOREST RESOURCES WANAGEMENT ›› 2022›› Issue (5): 145-152.doi: 10.13466/j.cnki.lyzygl.2022.05.018

• Research Briefing • Previous Articles     Next Articles

Distribution Status and Habitat Characteristics of Wild Plant Species with Extremely Small Population of Sonneratia×hainanensis

ZHONG Cairong(), FANG Zanshan(), LYU Xiaobo, CHENG Cheng, ZHANG Mengwen   

  1. Hainan Academy of Forestry(Hainan Mangrove Research Institute),Haikou 571100,China
  • Received:2022-07-14 Revised:2022-10-17 Online:2022-10-28 Published:2022-12-23
  • Contact: FANG Zanshan E-mail:crzhong169@163.com;shan67886251@qq.com

Abstract:

To effectively protect the wild plant Sonneratia×hainanensis with a extremely small population,the methods of literature review,interview and quadratic survey were combined to investigate and analyze the resource distribution status,community structure,topography and habitat characteristics of Sonneratia×hainanensis.The results showed that:1)Sonneratia×hainanensis hada narrow natural distribution range and small population;2)The natural distribution of Sonneratia×hainanensis tended to grow in the middle and high tide area with sufficient light,warm climate,medium and low salinity.At the same time,the species had a certain tolerance to pollution and was not very strict on sediment requirements;3)The community structure of the naturally distributed Sonneratia×hainanensis were relatively complete and stable.The population of Sonneratia×hainanensis was a declining population,and the number of individuals would gradually decrease with natural development.Through research and analysis,some conservation strategies such as restoring ecological environment,artificially promoting natural hybridization,and artificially cultivating and expanding the number of provenances were put forward.

Key words: Sonneratia×hainanensis, wild plant species with extremely small population, habitat characteristics, community composition, population age class structure

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