Analysis on plant community types and function characteristics in riparian zone along External Qinhuai River in Nanjing

Community types and ecologic function characteristics in riparian zone along Qinhuai River in Nanjing were investigated. There were 84 species (varieties) of woody plants that,belong to 46 including families and 57 genera. Among these plants,five families including six genera and nine species are gymnosperms,and 41 families including 51 genera 75 species are angiosperms. According to main woody plants species and structure character,six communities were classified. Vegetation types constructed in clay riverside were not only advantageous to conserving riparian nature landscape,but also to exerting of ecologic function. Besides,plan species were rich,diversities indexes were high and the constructing cost was low there. So it was worthy of spreading the vegetation type. Comparability between East and west Changganxiang,among riversides of lower reaches after Shuiximen were high,plant component was few. Thus,it was needed to enrich plant species,increase species diversities,improve ecologic function and landscape effect of vegetation.