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宣城市国家重点保护野生植物的分布特征
耿秀婷,黄成林,张华莲
0
(阜阳师范学院生物与食品工程学院,阜阳 236037;安徽农业大学林学与园林学院,合肥 230036)
摘要:
依据《第二次全国重点保护野生植物资源调查名录》,利用实测法和样方法在宣城市范围内进行实地调查,确定该市重点保护野生植物名录,并对其分布特征进行深入分析。结果表明:(1)本区有国家重点保护野生植物17种,隶属于12科16属,其中,国家一级保护植物3种,国家二级保护植物14种;(2)本区重点保护野生植物起源古老,特有成分多;以东亚和北美洲间断分布、中国特有分布为主;温带成分占主导,且中国特有成分丰富;(3)水平分布不均,物种多度由多到少为绩溪>宁国>宣州>泾县、旌德>郎溪、广德,垂直分布集中在海拔200~1 000 m常绿落叶阔叶混交林中;(4)4种分布格局,多呈单株或零星分布。
关键词:  国家重点保护野生植物  区系地理  分布特征  宣城市
DOI:10.13610/j.cnki.1672-352x.20170419.006
基金项目:安徽省自然保护站, 安徽省第二次重点保护野生植物资源调查(皖植调20130302), 阜阳师范学院自然科学研究项目(2017FSKJ13)和阜阳师范学院本科生科研立项(BKSKY2016260)项目共同资助。
The distribution of national key-protected wild plants in Xuancheng
GENG Xiuting,HUANG Chenglin,ZHANG Hualian
(School of Biologyical and Food Engineering, Fuyang Normal University, Fuyang 236037;School of Forestry and Landscape Architecture, Anhui Argricultural University, Hefei 230036)
Abstract:
According to the Second Survey List of National Key Protected Wild Plant Resources of China, we carried out a field survey in Xuancheng using the measurement and quadrat sampling methods to determine the list of local protected wild plants and analyze their distribution characteristics in depth. The main findings were as follows: 1) in Xuancheng area, there are 17 national key protected wild plant species, belonging to 12 families and 16 genera in which three are first-grade national protected plants and 14 are second-grade national protected plants; 2) these plants were ancient origin with many special species, mainly discontinuously distributed in East Asia, North America and China in dominant flora types, which showed strong temperate characteristics, and many of them only distributed in China; 3) the geographic distribution of the key protected wild plants was uneven, and the descending order of species abundance was Jixi > Ningguo > Xuanzhou > Jingxian, Jingde > Langxi, Guangde. The vertical distribution of the protected plants was concentrated in the range of 200-1000 m; 4) there were four distribution patterns of these protected plants. The single or sporadic distribution was the dominant type.
Key words:  national key protected wild plants  floristic characteristics  distribution pattern  Xuancheng city

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