神农架大九湖湿地公园的植被现状与保护对策

Vegetation and Conservation Strategy of Dajiuhu Wetland Park in Shennongjia Region

大九湖湿地公园共有维管植物103科273属411种,分别占整个神农架自然保护区维管植物科、属、种的51.8%、31.3%和14.9%。在植物地理区系成分上,以温带成分为主。大九湖湿地公园的植被可划分为4个植被型组,7个植被型,20个群系。黑三棱群落(Form.Sparganium stoloniferum)和睡菜群落(Form.Menyanthes trifoliata)为中国首次记载。食虫植物黄花狸藻(Utricularia aurea)和圆叶茅膏菜(Drosera rotundifolia)及苔草群落(Form.Carexargyi)中的浮毛茛(Ranunculus natans)均为神农架地区首次记载,并且圆叶茅膏菜和浮毛茛亦为湖北省首次记载。在全面调查大九湖湿地公园植被现状的基础上,结合大九湖湿地公园存在的主要问题,提出了相应的保护对策。

411 vascular plant species, belonging to 273 genera Wetland Park. They account for 51.8% ,31.3% and 14. 9% of species in Shennongjia Nature Reserve, respectively. In the 103 families, were recorded in Dajiuhu the total amount of families, genera and floristic composition, the component of Temperate Zone is dominant. The vegetation can be classified into 4 vegetation type groups, 7 vegetation types and 20 formations. Sparganium stoloniferum community and Menyanthes trifoliata community are first recorded in China. Two insectivores （Utricularia aurea and Drosera rotundlfolia） in marsh and Ranunculus natans in Carex argyi community are first recorded in Shennongjia region, and D. rotundifolia and R. natans are also first recorded in Hubei Province. Based on the present investigation and the main problems in the Wetland Park, we gave some conservation suggestions.