随着全球经济一体化速度的加快和国际间贸易往来的增多,林业有害生物入侵、扩散、成灾的压力不断增加。有害生物严重影响林木生长、更新,也影响生物多样性形成;经济林、天然次生林、灌木林和荒漠植被有害生物侵蚀问题日渐突出,逐步由次要矛盾转为主要矛盾。与此不相适应的是:防 With the acceleration of global economic integration and the increase of international trade, the pressure of invasion, proliferation and disaster of forestry pests is on the rise. Pests seriously affect the growth and regeneration of trees and also affect the formation of biodiversity. The problem of pest erosion in economic forests, natural secondary forests, shrubberies and desert vegetation has become increasingly prominent, and the secondary contradictions have gradually shifted to major contradictions. Not compatible with this is: anti