论文部分内容阅读
林内计划火烧是一项新发展起来的营林用火技术,国内外已大面积生产应用。采用低强度火有计划地烧除地表可燃物,可有效地减少林内可燃物数量,增加土壤肥力,促进林木生长。该技术应用于病害防治国外已有先例。落叶松落叶病(Mycosphaeria Laricileptolepis)是我国重要林木病害之一,已在许多地区造成严重危害。特别是林内卫生条件不好,郁闭度不高的林分,加之测报条件不完善等原因,应用烟雾剂防治效果不够理想。根据落叶松落叶病侵染循环特点,结合营林用火经验,我们
Forest fire plan is a newly developed forest fire technology, large-scale production applications at home and abroad. The use of low-intensity fire plan to burn the surface combustible material, which can effectively reduce the amount of combustible material in the forest, increase soil fertility and promote forest growth. The technology has been applied to disease prevention and control of foreign precedents. Mycosphaeria Laricileptolepis is one of the most important forest diseases in our country and has caused serious harm in many areas. Especially poor forest health conditions, canopy density is not high forest, coupled with the imperfect measurement conditions and other reasons, the application of aerosol control effect is not ideal. According to larch deciduous disease infection cycle characteristics, combined with forest fire experience, we