四川省野生凤仙花属物种多样性与地理分布
Species Diversity and Geographical Distribution of Wild Impatiens in Sichuan Province
该研究以四川省野生凤仙花属(Impatiens)植物为研究对象,在建立物种名录和地理分布数据库的基础上,对其物种多样性及地理分布格局进行研究。通过系统检索文献资料、标本考证和实地调查,对其物种组成、特有性、地理分布格局进行分析,最后采用筛除算法确定四川省凤仙花属植物分布的热点地区。研究结果表明:截至2025年4月,四川省野生凤仙花属植物共记载108种(含1变种),分布于82个县级行政区,有94个中国特有种和41个四川特有种,垂直分布以2 000~2 500 m海拔段最为丰富。筛选得到峨眉山市、冕宁县、木里县、康定市、石棉县、盐源县、九龙县、金川县、昭觉县9个热点县级行政区,共包含了四川省80.55%的野生凤仙花属植物。四川省地形地貌多样,水系发达,分布的凤仙花属植物有着较高的物种多样性和区域特有性。该研究进一步厘清并完善了四川省凤仙花属物种多样性数据,同时也为其特有种质资源的保护及开发利用提供了参考。
Based on the establishment of species list and geographical distribution database, the species diversity and geographical distribution pattern of wild Impatiens in Sichuan Province were studied. The species composition, endemicity, geographical distribution pattern in Sichuan Province were analyzed through systematic literature retrieval, specimen textual research and field investigation respectively, and the hot spot area of Impatiens distribution were determined by screening algorithm. The results showed that a total of 108 wild species (including one variety) of Impatiens were recorded in Sichuan Province by April 2025, distributed in 82 counties, with 94 species endemic to China and 41 species endemic to Sichuan Province. The vertical distribution was most abundant at the elevation of 2 000~2 500 m. Nine hot counties, including Emeishan City, Mianning County, Muli County, Kangding City, Shimian County, Yanyuan County, Jiulong County, Jinchuan County and Zhaojue County were screened, which contained 80.55% of the wild Impatiens in Sichuan Province. Sichuan Province was characterized by diverse geomorphologic types and well-developed river systems, the distribution of Impatiens had high species diversity and regional endemicity. The study clarified and improved the species diversity of Impatiens in Sichuan Province, and provided the reference for protection, development and utilization of endemic germplasm resources.
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贵州省基础研究计划(自然科学类)项目(黔科合基础-ZK[2023]一般102)
贵州省科研机构创新能力建设专项(黔科合服企[2024]013号)
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