湖南益阳市湿地维管束植物多样性分析

Analysis of the Vascular Plants Diversity in Wetland of Yiyang,Hunan Province

湿地生态环境受到严重破坏,湿地生态环境及湿地植物资源的调查、保护与修复工作迫在眉睫。结合遥感影像采用一般与重点调查方法对益阳市湿地范围内的维管束植物多样性进行分析。研究结果:益阳市湿地范围内有高等维管束植物153科496属816种,其中蕨类植物17科19属22种;裸子植物7科13属18种,被子植物129科464属776种;植物群落划分为5个植被型组,18个植被型,群系超过121个;严重的人为干扰和破坏引发了湿地植物群落斑块破碎、湿地污染严重等一系列问题。益阳市湿地内维管束植物物种多样,但因城市化建设、围垦、物种入侵等严重破坏了湿地植被群落的结构和功能。

Wetland ecological environment has been seriously damaged,so that the investigation,protection and restoration of wetland ecological environment and wetland plant resources were urgent.The diversity of vascular plants in the wetland of Yiyang City was analyzed by means of general and key investigation method combined with remote sensing images.The research results were as follows:There were 816 species vascular plants,belonging to 496 genera153 families.Among them,there were 22 species of ferns in 18 genera of 17 families,18 species of gymnosperms in 13 genera of 7 families,and 776 species of angiosperms in 464 genera of 129 families;Wetland plant communities was divided into 5 vegetation groups,18 vegetation types and more than 121 floras;Due to the serious human disturbance and destruction,a series of problems was caused such as wetland plant community patch was broken,the wetland pollution and so on.The vascular plant species are diverse whthin the wetland area of Yiyang,but the structure and function of wetland vegetation community have been seriously damaged due to urbanization,reclamation and species invasion.