【摘要】 通过对太湖北部贡湖、梅梁湾湖滨带观测场为期1年的野外现场调查,研究了两湖滨带沿岸浅水区水生植物现状及水质、底质的理化指标.结果表明:①贡湖湖滨带水生植物群落可划分为芦苇群落、马来眼子菜+荇菜+穗花狐尾藻群落和马来眼子菜单优群落;梅梁湾湖滨带水生植物群落可划分为芦苇+水花生群落、芦苇群落和菹草群落.②两湖滨带沉水植物生长有明显季节性差异,贡湖湖滨带沉水植物生长期为春、夏、秋三季;梅梁湾湖滨带沉水植物生长期为冬、春两季.③两湖滨带观测场水生植物尤其是沉水植物现存种存在明显差异,水动力条件、水体总氮和底质营养盐含量不同是造成这种差异的重要原因.更多还原

【Abstract】 Two fields in Gonghu Lake and Meiliang Lake were investigated for one year.The data of macrophytes,water quality and sediment were analyzed.Results showed that ① the macrophytes communities of Gonghu Lake include Phragmites Communis Trin.,Potamogeton malaianus + Nymaphoides peltata + Myriophyllum spicatum L.and Potamogeton malaianus community;the macrophytes communities of Meiliang Lake include Phragmites Communis Trin.+ Alternanthera philoxeroides Griseb,Phragmites Communis Trin.and Potamogeton crispus community.② Macrophytes in Gonghu Lake mainly grow in spring,summer and autumn,and in Meiliang Lake mainly grow in winter and spring.③ There is significant difference in current species of macrophytes,especially submerged plants between the two lake fields,and the hydraulic condition,the total nitrogen content in water and nutrient content in sediment should be the important factors of this difference.更多还原