Abstract: Urban avian diversity is an important part of city biodiversity,which plays an important role in ecological balance of cities.During the summertime in 2004, we studied three typical avian communities at the habitats of village and farmland,urban woodlot,and floodplain in the urban and suburban areas of Wuhu City.A total of 71 species were recorded,which belonged to 12 orders, 27 families.The analysis of diversity index showed that urban woodlot had the greatest avian species number and G?F index,village and farmland had the highest avian density,and floodplain had the highest Shannon?Wiener and Pielou indices due to low human disturbance and dense vegetation.It is important to keep the avian diversity of floodplain in Wuhu City.

Key words: Leymus chinensis, Clone population, Age structure