生态系统代表性种群在生态预警、生物多样性保护等方面具有不可忽视的作用,开展代表性种群评估是生物多样性优先保护的关键基础。以适宜生境分析为切入点,重点解析海南热带雨林代表性种群的分布格局。研究结果表明:1)海南热带雨林国家公园大部分区域潜在分布的热带雨林代表性种群数量在10~25种之间,分布面积占区域总面积的83.86%;2)代表性种群的分布主要受海拔和植被类型因素影响较大,种群分布数量整体由高海拔向低海拔、由原生林向次生和人工林递减辐射分布;3)海南热带雨林国家公园的建设,虽极大地促进了生态系统的连通性和生物多样性保护,但仍有较大面积的代表性种群高热点分布区域未纳入国家公园核心保护区,需加强对此类地区的关注和重视。代表性种群的生存状况很大程度上直接反映了热带雨林生态系统的现状特征,研究成果可为海南热带雨林国家公园生态规划、热带雨林修复、代表性种群保护等提供数据支撑和理论指导。

Representative populations play an innegligible role in ecological early warning and biodiversity conservation1.The assessment of endangered species is the key basis for the priority conservation of biodiversity,analysis on the distribution pattern of representative populations from the perspective of suitable survival area.The results showed that:1)There were 10~25 species of representative populations potentially distributed in most areas of the National Park of Hainan Tropical Rainforest,accounting for 83.86% of the total area.2)The distribution of representative populations was mainly affected by altitude and vegetation type.The overall number of species distribution showd a radiation state of decreasing distribution from high altitude to low altitude,from primary forest to secondary forest and plantation.3)The construction of the National Park of Hainan Tropical Rainforest already opened up the boundary between the original protected areas and greatly promoted the interconnection of the ecosystem.However,there were still large areas of high hotspots of endangered plants that have not been included in the core protected areas.Therefore,more attention should be paid to these areas.The survival status of representative populations directly reflected the current characteristics of tropical rainforest ecosystems to a large extent.The research results can provide reference and theoretical basis for the ecological planning and biodiversity protection of the National Park of Hainan Tropical Rainforest.