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系统介绍了我国林地主要外来有害植物的入侵机制。分析了其危害现状,即外来有害植物对森林生态系统的危害、对湿地生态系统和水体的影响和对荒漠和草原系统的侵害。提出提高安全认识、加强管控、提供技术支撑等防控对策。同时强调,化学防治使用方便经济、效果好,受环境制约小,便于大面积推广应用。
The system introduces the invasion mechanism of the major exotic harmful plants in woodlands in China. The status quo of the damage was analyzed, that is, the harm of alien harmful plants to forest ecosystems, the impact on wetland ecosystems and water bodies and the desertification and grassland systems. Put forward to raise safety awareness, strengthen control, provide technical support and other prevention and control measures. At the same time, it is emphasized that the chemical control is convenient and economical to use, has good effect, is subject to small environmental constraints, and is convenient for popularization and application in a large area.