近十年来,我市森防指和黑龙江省森保所紧密合作,大面积推广营林用火新技术,对减少和控制我市森林火灾起到明显的效果,也为森林经营闯出了一条新路。多年来,我们利用点烧地段和周围环境的湿度梯度指标,安全地进行了点烧控制线和大面积普烧。具体地说,在枯霜期,由于有“霜打洼地”现象,沟塘草地的草本植物先枯黄,可燃物含水量少,即湿度小,林内因受树冠遮挡,仍为绿色植物,可燃物含水量多,即湿度大,林内外出现明显可燃物的湿度梯度,林内成为点烧沟塘的依托。在春 Over the past decade, the city Sen defense means close cooperation with the Heilongjiang Provincial Environmental Protection Agency, large-scale popularization of forest fire with new technologies, to reduce and control the city’s forest fire played a significant effect, but also for the forest management to break a new road. Over the years, we have made use of the humidity gradient indicators of the burned-out areas and the surrounding environment to safely carry out the point-burning control line and large-area burnt-out burners. Specifically, in the dry frost period, due to the phenomenon of “frost depression”, herbaceous plants in the gully grassland turn yellow first, the water content of the combustible material is small, that is, the humidity is low, and the forest is covered by the canopy and is still a green plant. The combustible material The amount of water, that is, humidity, there is significant moisture inside and outside the forest of fuel gradient, the forest to become the basis for burning ditches. In spring