林火对森林虫害发生的影响与防控对策

The Influence of Forest Fire on Forest Pests and the Prevention and Control Measures

火灾是影响森林的重要生态因子,对森林生态系统产生直接作用,也直接影响森林昆虫的寄主和生存条件。特别是在火因子的强烈干扰下,火烧迹地林分极易受到森林虫害侵袭,影响下一阶段火烧迹地的植被恢复。笔者通过查阅国内外文献资料,分析了林火与森林虫害发生之间的关系,研究了火烧迹地上喜迹地昆虫的分布与扩散,以及火烧强度与虫害发生的相关关系等。基于森林生态系统自身、调控对象和生态因子3个方面提出防控策略和对策建议,以期为有效控制森林虫害发生,促进森林生态系统的协调与可持续发展,保障火烧迹地森林生态系统的顺利恢复和持续控灾提供理论参考。

Fire is an important ecological factor of forest,which act on and effects forest ecosystem directly and also affects the host and living conditions of forest insects directly.Especially under the strong interference of fire factor,the forest stand in the burned area is vulnerable to a large number of forest pests,which will also affect the vegetation restoration in the next stage.By consulting of the literature at home and abroad about related research,the relationship between forest fire and forest pests occurrence,the distribution and diffusion of pyrophilous insect on the burned area,and the correlation between fire intensity and insect pests occurrence were reviewed.The prevention and control strategy had put forward based on 3 aspects of the forest ecological system,the control object and the ecological factor.And the measures and suggestions had put forward according to current situation of burned area in Shanxi province,so as to control the occurrence of forest pests.It could promote coordinated and sustainable development of forest ecosystem effectively,and ensure the smooth operation of the burns forest ecosystem restoration and sustainable control disaster.