福建长汀典型水土流失区木本植物区系分析

Analysis on the Floristic of Woody Plants in Typical Soil Erosion Areas in Changting, Fujian Province

于2019年5—7月、2020年9—11月,采用样方法和样线法相结合的方法,对福建长汀典型水土流失区的木本植物进行统计分析。结果表明:典型水土流失区共有木本种子植物316种,隶属于67科163属,优势科现象明显;地理分布上,区系地理成分复杂,区系起源古老,科、属、种的分布区类型均以热带分布为主,呈现南亚热带向中亚热带过渡的特点。典型水土流失区分布有国家一级保护植物南方红豆杉(Taxus wallichiana var.mairei),国家二级保护植物罗汉松(Podocarpus macrophyllus)、花榈木(Ormosia henryi),福建省重点保护珍贵树木红锥(Castanopsis hystrix)、黄樟(Cinnamomum parthenoxylon),应加强典型水土流失区植物资源保护力度。

From May to July 2019 and from September to November 2020,based on the the sampling method and line transect method, the woody plants in the typical soil and water loss area of Changting County, Fujian Province were analyzed.The results show that: There were 316 species of woody seed plants belonging to 67 families and 163 genera in typical soil erosion areas.In geographical distribution, the floristic composition is complex, and the origin of the Floras is ancient.The family, genus and species are mainly distributed in the tropics, showing the characteristics of transition from the south subtropical to the middle subtropical.Typical soil erosion areas are distributed with national first-class protected plants Taxus wallichiana var.mairei,national second-class protected plants Podocarpus macrophyllus and Ormosia henryi and precious trees Castanopsis hystrix and Cinnamomum parthenoxylon under key protection in Fujian Province.It is necessary to strengthen the protection of plant resources in typical water and soil loss areas.