我国地域辽阔,生态环境多样,外来入侵物种很容易找到适宜的栖息地进而四处扩散。目前在全国各地,几乎在所有类型的生态系统中都出现了外来物种,对我国生态和经济造成了重大威胁。据国家环保总局统计数据,目前进入我国的主要外来害虫32种,外来病原菌23种,外来杂草共有75属107种, With its vast territory and diverse ecological environment, it is easy for invasive alien species to find suitable habitats and then spread around. Alien species are present in almost all types of ecosystems throughout the country, posing a significant threat to our ecology and economy. According to the State Environmental Protection Administration statistics, there are currently 32 species of major invasive pests entering our country, 23 species of exotic pathogens, and a total of 75 genera and 107 species of exotic weeds,