鄂西南后河自然保护区植物区系研究  

FLORAL CHARACTERISTICS OF THE HOUHE NATURE RESERVE IN THE SOUTHWEST HUBEI

作　　者：王万贤[1] 傅运生[1] 杨毅[1] 程炯 李晓宇 

机构地区：[1]湖北大学生命科学系,武汉430062

出　　处：《武汉植物学研究》1997年第4期353-362,共10页Journal of Wuhan Botanical Research

基　　金：湖北省林业厅资助

摘　　要：后河自然保护区共有维管植物1416种（含52个变种和亚种），隶属568属160科。其中蕨类、拟蕨类41种28属20科；裸子植物18种11属6科；被子植物1357种529属134科。在科、属、种不同水平上对后河自然保护区植物区系特点进行了较深入的统计和分析、结果显示了该区系的丰富性，复杂性，古老、遗、原始性，温带成分的集中性，古特珍稀危植物群落繁荣的特殊性等特点。因此有理由认为后河植物区系对湖北乃至华中植物区系具有典型的代表性，是北温带植物区系起源、分化和扩散中心的重要组成部分之一。Houhe is a nature reserve in Hubei Province. It is situaed 30°3＇20＂～30°6＇15＂N. latitude, 110°29＇40＂～110°34＇20＂E. longitude in the Southwest Hubei. The total area of the reserve is about 2 067 hm2. Fourteen-hundred and sixteen vascular plant species including subspecies and varieties were found in the reserve. The species belong to 568 genera in 160 families including 20 families, 28 genera and 41 spedes of Pteradophytes; 6 families, 11 genera and 18 species of gymnosperms; 134 families, 529 genera and 1 375 species of angiosperms. The statistics and comparatively intensive analyses at different levels, as familiar,generic,and specific, were conducted. Based on the statistics and analyses, the results show that the floral characteristics of the Houhe Nature Reserve are rich in flora,dlversity of species,archalc,rellc and primitive in flora,concentrated distribution of temperate components in flora,and special characteristics of community of the great majority of archaic,relic,primitive plants in a concentrated area. According to the statistics and analyses,the florae of the Houhe Nature Reserve should be considered as a typical representative in the florae of Hubei Province and Central China. Also,it is reasonable to consider the Houhe Nature Reserve in the Southwest Hubei as one of the centers where North Temperate flora originated,differentiated,and dispersed.

关 键 词：植物区系 后河自然保护区 湖北 

分 类 号：Q948.526.3[生物学—植物学] S759.94[农业科学—森林经理学]