摘要
通过实地调查以及查阅相关资料等方式,掌握四川嘉陵江源湿地自然保护区的植物区系分布及特点,根据中国种子植物分布区类型的划分标准,对区域内植物属和种的区系地理成分进行统计和分析。结果表明:嘉陵江源湿地自然保护区内有维管植物175科730属1700种,其中,大部分为种子植物,生物多样性丰富。区内的蕨类植物和种子植物科组成都以少型科为主,占比分别为66.67%和52.70%,少型科是该保护区的优势科。植物区系地理成分复杂,其中蕨类植物以世界分布为主,种子植物在科的区系组成中呈现出较高的热带性质,在属的区系组成中呈现出温带性质,还有一定数量的中国特有成分,体现了该保护区内植被的地带性。
To obtain flora distribution and characteristics of the Jialing River Wetland Nature Reserve in Sichuan Province,field investigation and related data access were developed in this study.The flora distribution of genera and species in the region was analyzed based on the criteria for seed plants distribution in China.The survey results show that there are 175 families,730 genera and 1700 species of vascular plants in the Jialing River Wetland Nature Reserve.And most belonged to seed plants,which is rich in biodiversity.Small families,as the dominant families of the reserve,were the main composition of ferns and seed plants in the flora,which accounted for 66.67%and 52.70%respectively.The flora of the nature reserve is complex,and the ferns are mainly cosmopolitan.The seed plants exhibit high tropical characteristics in the floristic composition of the family,and exhibit temperate nature in the genus composition.Moreover,the flora was characterized with certain Chinese peculiar elements,reflecting the zonality of vegetation in this region.
作者
冯丹
汪茜
胡涛
雷子勇
李江
宗浩
Feng Dan;Wang Qian;Hu Tao;Lei Ziyong;Li Jiang;Zong Hao(College of Life Science,Sichuan Normal University,Chengdu Sichuan 610101,China)
出处
《西南林业大学学报（自然科学）》
CAS
北大核心
2020年第1期62-68,共7页
Journal of Southwest Forestry University：Natural Sciences
基金
国家自然科学基金(31672304)资助
四川师范大学科研创新团队基金资助
