A Preliminary Study on Alien Invasive Plants in Jiangsu,China

From 1985 to 2013, there were only 9 literatures reports on alien invasive plants in Jiangsu, less than 025% of total 3665 similar reports during the same period in China, and it was much disproportionate with the development level of social, economic, cultural and other aspects of the province. Through field investigation, literature review and specimen inspection, the preliminary statistics, analysis and discussion of 47 families 128 genera and 209 species of alien invasive plants in Jiangsu have been made, including their composition, origin, and the life form. All alien invasive plants were ranked into 5 grades according to the damage to ecosystem and economy: twenty two malignant invasive species; forty one serious invasive species; thirty two local invasive species; fifty one general invasive species; a left 63 species with unknown damage wait for further observation. The characteristics of alien invasive plants in Jiangsu have been discussed, and the proposals of suggestion have been made.