海南保亭县湿地维管植物种类和区系组成特征

Vascular Plant Species Floristic Composition in Wetland of Baoting

通过实地调查对海南省中部地区保亭县的湿地植物资源进行研究。结果表明:(1)保亭县湿地维管植物共有134科426属641种,其中蕨类植物33种,裸子植物3种,被子植物605种;珍稀濒危物种14种。(2)按照生长型将全区湿地植物划分为乔木、灌木、草本、藤本4种,分别占比26%,25%,36%,13%,其中草本植物在保亭县湿地植物区系中居优势地位。(3)保亭县湿地维管植物区系以热带分布为主,热带成分分别占科总数的67.16%和属总数的89.44%;温带成分占比较小,分别占科总数的6.72%和属总数的6.34%。这与保亭县处于热带的地理位置相符合。

Field investigations were implemented during June and October 2018 on wetland vascular plant resources in wetlands of Baoting county,Hainan province.The results showed that there were 641 species of vascular plants,belonging to 134 families and 426 genera,among them,33 species of ferns,3 species of gymnosperm,605 species of angiosperm and 14 species of rare and endangered.They could be divided into tree,shrub,herb and vine,accounting for 26%,25%,36%,13%,among which herb plants occupied dominant position.Tropical components were dominated of vascular plants,accounting for 67.16%of the total number of families and 89.44%of the total number of genera.Temperate components accounted for 6.72%of the total number of families and 6.34%of the total number of genera.The result indicated that plant distribution pattern was consistent with geographic location of Baoting.