Study on the Invasive Alien Plants in Northern China
Based on China Virtual Herbarium (CVH),Plant Photo Bank of China (PPBC),reports and contents description,combined with the actual distribution and various works in northern China,109 invasive alien plants from 25 families,64 genera(including 108 invasive alien plants from foreign sources and 1 invasive alien plant from domestic sources)were comprehensively and systematically sorted out in northern China for the first time. The composition,origin and distribution of 109 invasive alien plants in northern China were summarized,and their invasive route,time and damage mode were analyzed. The problems existed in the research and the management,the situation of invasive alien plants,and the related experiences and knowledge of invasive alien plants were discussed respectively.