我省六十年代以来,由于忽视了“适地适树、因地制宜”的造林措施,强调树种单一,集中连片,经营管理不善,林间天敌没有注意保护和利用、生态系统遭到了极大的破坏,造成了多种害虫有利发生,甚立猖镢成灾。就笔者在省内实地所见,略举几例。 Since the 1960s, due to neglect of afforestation measures such as “being suitable for trees and adapting to local conditions”, emphasizing that single tree species, contiguous trees, poor management and management, natural enemies of forests did not pay attention to protection and utilization, ecosystems were extremely vulnerable Large destruction, resulting in a variety of pests favorable occurrence, even flies rampant disaster. As far as I see on the ground in the province, a few examples.