摘要
根据野外调查,结合文献资料,对南岳衡山藤本植物的区系及其生态特征进行了初步的研究,结果表明:该区野生藤本植物共计59科129属282种(含变种),分别占该区维管植物科、属、种总数的29.35%、16.82%和15.60%。该区地里成分复杂,以热带性分布为主,温带成分亦占有较大比例,其中科、属以泛热带分布型最多,分别占科、属总数的38.98%和23.26%,而种以热带亚洲分布型最多,达25.89%,表明该区藤本植物区系是以热带性质为主的亚热带类型,同时也显示出该区藤本植物区系向温带渗透和过渡的性质;该区中国特有种丰富,共计106种,占种总数的37.59%,属华东区系,与华东、华中、华南及滇、黔、桂有着极密切的联系;该区藤本的生态分布是随着海拔的升高,温度的降低,藤本的种类与数量也相应地减少。树木和藤本无亲疏关系,未发现某些藤本偏爱某些树种胜于其他树种;在区系关系上,该区与康龙和庐山的关系最为密切,而与崀山和龙底的关系较为疏远。
Based on field surveys, combined with literature data, we made preliminary study of the Mountain Flora and ecological characteristics of the vines ; the results are as follows ： a total area of wild vine flora 59 families 129 genera 282 kinds （varieties） representing the area of vascular plant families, genus and species of the total 29.35% , 16.82% and 15.60%. Geographical elements are complex, dis- tribution of tropical is the main and the temperate ones also account for a large proportion of which, fami- lies and genus of Pantropical distribution is the most, and each of them occupy 38.98% and 23.26% , while the species of tropical Asia is the most, reaching 25.89% , which indicated that the vine is a tropi- cal flora of the subtropical nature of the main types, but also shows the area of vines to the temperate flora of penetration and the nature of the transition; the area rich in Department of East China, and Eastern, Central, South China and Yunnan, Guizhou, Guangxi has a very close relationship; As the altitude in- creased, the temperature decreased, the number of vine types and numbers decreased. Trees and vines had no affinities and we found no vines preference for certain trees than the other. Flora relationship in the area is most closely related Lushan Mountain and Kanglong Mountain, while have a distant relation to Longshan Mountain and Longdi Mountain.
出处
《中国野生植物资源》
2013年第1期62-67,共6页
Chinese Wild Plant Resources
基金
湖南省科技计划项目(2011FJ3061)
