【摘要】 根据野外调查及查阅资料,对安徽界首两湾国家湿地公园维管植物组成及区系成分进行研究.结果显示:该区系共有野生维管植物59科150属216种(维管植物61科162属230种).其中,蕨类植物4科4属4种,被子植物55科146属212种.单型或单种的科属较多,分别占总科数、总属数的52.5%和78.2%.豆科包含9属16种,菊科20属30种,禾本科21属28种,为该湿地公园的优势大科.本区系野生维管植物59科可划分为5个类型及2种变型,以世界广布型为主,除去世界广布科后,热带广布科占81.3%;所有野生维管植物按150属划分为12个分布区类型及8个变型,属的分布区类型中温带分布型所占比例最高,为42.7%.从科与属的角度来看,该区系具有温带与热带的双重特性,与湿地公园所在区域处于暖温带与北亚热带之间的过渡区相符合.更多还原

【Abstract】 Based on field investigation and literatures, the composition and flora of vascular plants were studied in Anhui Jieshou Liangwan Wetland Park. The results showed that there were 216 species of wild vascular plants, belonging to 59 families and 150 genera(230 species of vascular plants, being member of 61 families and 162 genera) and including 4 species of ferns in 4 genera and 4 families. These vascular plants were rich in oligotypic families and genera, accounting for 52.5% of families, and 78.2% of generas in total respectively. There were three dominant families i,e. Leguminosae, Compositae and Gramineae. There were 9 genera and 16 species in Leguminosae, 20 genera and 30 species in Compositae, 21 genera and 28 species in Gramineae. The 59 vascular plant families could be classified into 5 areal-types and 2 subtypes. Among them, Cosmpolitan elements were the most dominant one. Tropical distribution sections accounted for 81.3% in addition to Cosmpolitan families. The 150 vascular plant generas could be devided into 12 types and 8 subtypes. Temperate type elements had the highest proportion, which was 42.7%. From the perspective of genera and families, the flora has the characteristics of both temperate and tropical, accorded with the truth that the wetland park located between the warm temperate zone and north subtropical zone.更多还原