Based on the results obtained from field studies for three years, the specific diversity of aquatic plants in the lakes of middle basins of Changjiang River was studied, including diversity index of aquatic plants in six typical lakes, the changes of the number of species and plant's individuals from lake bend to mid-lake, the relationship between the water depth and the distribution of plant belonging to different ecological types, the species-area curve of three lakes, the succession of the flora of plant...