中国野生杜鹃花属植物名录与地理分布数据集

杜鹃花属(Rhododendron)植物分布广泛, 生存环境多样, 类群结构复杂, 深入分析其地理分布格局与特征, 可为种质资源保育和利用等提供依据。本文基于大量基础数据及文献资料, 更新了中国陆域分布的野生杜鹃花属植物物种名录, 统计了其物种多样性、组成成分等信息, 建立了中国野生杜鹃花属植物地理分布数据库, 旨在为种质资源调查及引种应用研究提供参考。截至2021年7月, 共记载7亚属720种(包括114变种、45亚种和2变型), 其中中国特有种450种。除宁夏和新疆干旱荒漠地带外, 中国其他各省区均有野生杜鹃花属分布, 其中云南省分布393种, 是省级尺度物种丰富度及特有性最高的区域; 其次为四川省(278种)及西藏自治区(271种)。县级尺度贡山独龙族怒族自治县与察隅县以134种并列物种丰富度第一, 其次是德钦县128种。

A dataset on wild Rhododendron and geographical distribution information in China

The genus Rhododendron is widely distributed, lives in diverse habitats, and its group structure is complex. An in-depth analysis of its geographical distribution pattern and characteristics can provide a basis for conservation and utilization of germplasm. Based on current literature and data, this paper updates the list of species of wild Rhododendron distributed in China, explores species composition, and establishes a geographical distribution database of wild Rhododendron in China. As of July 2021, 720 species (including 114 varieties, 45 subspecies and 2 forms) of 7 subgenera have been recorded, of which 450 are endemic to China. The genus Rhododendron is distributed in all provinces of China except the arid desert areas of Ningxia and Xinjiang. Over half of all Rhododendron (393) species are distributed in the Yunnan Province, which is the highest species richness and endemism at the provincial level. There are 278 species in Sichuan province and 271 species in Tibet Autonomous Region. At the county level, Gongshan and Zayul counties are tied for having the most species of Rhododendron at 134 species, followed by 128 species in Deqin County. This study revised and updated the list of wild Rhododendron plants and their geographical distribution in China in order to provide reference for germplasm investigation and application research.