摘要
为了掌握石首市天鹅洲湿地野生维管束植物的组成与地理分布,对其进行了全面的野外调查。研究结果表明,天鹅洲湿地野生维管束植物共有45科125属148种,其中,有蕨类植物2科2属2种,被子植物43科123属146种;该区系野生维管束植物主要由草本植物组成,其科(43科)、属(118属)和种(140种)的优势明显;双子叶植物(37科96属120种)构成了天鹅洲湿地野生维管束植物区系的主体。天鹅洲湿地野生维管束植物的分布区系类型多样,在植物科的水平上,有5类型3变型,在植物属的水平上,有12类型7变型,在植物种的水平上,有14类型11变型,表明该区系地理成分复杂,与其它区系联系广泛;温带成分略占优势,反映出该区系从亚热带到温带过渡的区系特点;无特有属,特有种匮乏,仅有1种。
In order to understand the distribution characteristics and geographical information of floristic composition of wild vascular plants in Tian-e-Zhou wetlands, Shishou city, the present study was carried out in this area.The results showed that those wild vascular plants in Tian-e-Zhou wetlands included 148 species belonging to 45 families and 125 genera in both angiosperms and ferns although only 2 species in ferns. The flora was mainly composed of herbaceous plants, in which the dominant species were 140 species belonging to 43 families and 118 genera. The 120 Dicotyledonous plants belonging to 37 families and 96 genera formed the body of the vascular flora in Tian-e-Zhou wetlands. Flora distribution type was diverse, on which there were 5 distribution patterns and3 variations of the family, there were 12 types and 7 variations of the genus and 14 types and 11 variations of the species. Those results implied that the geographical elements of flora of vascular plants in Tian-e-Zhou wetlands were complex and widely contacted with other flora. The temperate genera were dominant in this area, which revealed that the flora in study area had the characteristics of the flora from subtropical to temperate transition. At the same time, no endemic genera were founded in this area, and 1 endemic specie was distributed in this area.
出处
《湿地科学》
CSCD
北大核心
2017年第4期540-545,共6页
Wetland Science
基金
国家自然科学基金项目(31170400和31460132)资助
