重庆市玉龙山国家森林公园种子植物区系分析

Analysis on the Flora of Seed Plant in Yulongshan National Forest Park

在对重庆玉龙山国家级森林公园种子植物详细调查的基础上,进行归类统计分析。结果表明:1)该区种子植物类群丰富,共有种子植物150科、600属、1074种,其中裸子植物8科、15属、18种,被子植物142科、585属、1056种;2)种子植物分布区类型较为复杂,具有中国绝大多数的科分布区类型与所有属的分布区类型;3)种子植物起源古老;4)优势科、属明显;5)各类群生活型中,数量上以草本为主,而对公园影响而言,木本种类更为重要;6)地理成分复杂,温带性质明显且具有较深的热带渊源;7)与邻近风景区相比,公园种子植物科的数目及属的种类较多,但种的数目较少。以上结果可为该区森林公园的建设、保护与管理提供理论和实践依据。

Flora of seed plant in Yulongshan,a national forest park in Chongqing municipality,was analyzed based on field investigation.The floristic characteristics of the studied area are as follows： 1） The species richness of seed plant is high.There are 1074 species of seed plants belong to 150 families and 600 genera,among which gymnosperms contain 18 species,8 families and 15 genera,and angiosperms contain 1056 species,585 genera and 142 families.2） The style of distributing is complex.The species composition represents most of families and almost all genera distributed in China.3） The seed plant origin is antiquity.4） There exists obvious dominant species.5） The plant life form is abundance.Though most of the plant species are herbaceous plant,the woody plant may play much more role for the forest to carry out its function.6） The present flora has a complex geographical component,possess obvious temperate floristic characteristics but with a tropical floristic origin.7） Compared with the neighboring scenic spots,there are more families and genera and less species in the park.The results may be some help for the build of the forest park.