湖北长江新螺段白鱀豚国家级自然保护区维管束植物区系研究

Research on the Flora of Vascular Plant Species in the Baiji National Nature Reserve of Xinluo Section Yangtze River in Hubei

湖北长江新螺段白鱀豚国家级自然保护区地处长江中游,是中国重要的淡水豚类保护区之一。于2022-2023年对保护区开展维管束植物调查,调查结果显示,保护区内维管束植物共计136科445属726种,其中蕨类植物8科9属12种,裸子植物5科11属14种,被子植物123科425属700种。区系分析结果显示,新螺段自然保护区维管束植物在科水平上,与全球植物区系存在广泛联系;在属水平上,以温带成分分布型和热带成分分布型为主,具有明显的热带温带过渡特点。本研究结果为新螺段自然保护区生物多样性维持、濒危物种栖息地的保护管理工作提供科学依据。

The Baiji National Nature Reserve of Xinluo Section Yangtze River in Hubei is located in the middle reaches of the Yangtze River which is one of the important river dolphin reserves in China.A survey of vascular plants was conducted in the reserve during 2022 to 2023.The survey results showed that there were a total of 726 species of vascular plants in 136 families,445 genera,including 8 families,9 genera,12 species of ferns,5 families,11 genera,14 species of gymnosperms,123 families,425 genera,700 species of angiosperms.The results of flora analysis showed that the vascular plants in the reserve were widely related to the global flora at the family level.At the genus level,temperate component distribution type and tropical component distribution type are dominant,with obvious characteristics of tropical temperate transition.The results of this research provide scientific basis for biodiversity maintenance and habitat protection and management of endangered species for the Baiji National Nature Reserve.