Vegetation types and ecological restoration in Nanjing ecological technology island (Jiangxin Island).
The vegetation types and plant community structure in Nanjing ecological technology island (Jiangxin Island) were investigated using 54 standard sampling plots. The results were as follows. (1) A total of 266 species of vascular plants that belong to 203 genera in 95 families were found on the island. These plants can be classified into five fern species in four genera of four families, nine gymnosperm species belonging to eight genera in six families, and 252 angiosperm species belonging to 191 genera in 85 families. In addition, 23 species belonging to 20 genera in 12 families are invasive plants, three species are national level I protection plants, and five species are national level II protection plants. (2) The island can be divided into five vegetation types: I, wetland ecosystem types along the tidal; II, inland wetlands types; III, forest ecological types; IV, agricultural types; and V, Structure types of interference. (3) Ecological restorations can be achieved through three strategies, including the original vegetation protection, forest transformation, and ecological reconstruction. According to the ecological characteristics of tail plaques, west corridor, and head plaque, we have proposed several targeted ecological restoration measures for optimizing ecology of Jiangxin Island and the similar islands.