江西特有植物区系、地理分布及生活型研究

Research on the Floristic Characteristics,Geographical Distributions and Life-forms of Plants Endemic to Jiangxi Province

摘要: 对江西特有植物的种类、区系成分、地理分布、生活型进行了研究,并绘制了江西特有植物分布图.研究结果表明,江西省内共有124种特有植物分布,隶属于40科60属,以鳞毛蕨科Dryopteridaceae、蔷薇科Rosaceae、槭树科Aceraceae、山茶科Theaceae、金星蕨科Thelypteridaceae、禾本科Gramineae、木兰科Magnoliaceae等类群最为集中;区系组成上以热带-亚热带成分与温带成分并重,两种类型的区系成分所占比重为76.5%,构成江西特有植物区系的主体;特有植物省内分布不均衡,明显呈现出庐山、井冈山、南岭山地、武夷山四大分布中心;特有植物生活型分析显示,多年生草本植物、落叶乔木、落叶灌木3种类型为生活型谱的主体.

Abstract: The plants endemic to Jiangxi province are discussed.There are a total of 124 endemic vascular plants belonging to 60 genera,40 families,mostly in Dryopteridaceae,Rosaceae,Aceraceae,Theaceae,Thelypteridaceae,Gramineae,and Magnoliaceae.Floristic analysis shows that tropical-subtropical and temperate elements are the most important.The geogra-phical distribution is unequal,with four clear centers of endemism located at Mt.Lushan,Mt.Jinggangshan,Mt.Nanling,and Mt.Wuyishan.