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一、前言本技术研究是以林火生态和物候学为理论依据,从生态学的角度,把火看成一个活跃的生态因子;从经营的角度把火当作一种廉价的手段和工具。通过选择最佳点烧时机,用低强度的火烧除林内积累的大部分枯枝、凋落物等易燃物,以此降低森林火险等级,并获得多种经济效益,从而达到变“火害”为“火利”的目的。试烧采用物候点烧法,俗称“跟雪点烧法”,即根据物候的时差和位差来选择最佳点烧时机,选择合适的林分,点烧机具和点烧方式等,同时对林内外各种气象要素作实地观测,作为科学用火的参考。本项研究与佳本斯市护林防火指挥部合作,从1983年秋开始,在汤原、依兰、桦
Foreword The technical study is based on forest fire ecology and phenology as the theoretical basis, from the ecological point of view, the fire as an active ecological factor; from a business point of view the fire as a cheap means and tools. By choosing the optimal timing of ignition, most of the litter, litter and other combustibles accumulated in the forest are burned with low-intensity fire to reduce the level of forest fire hazard and obtain various economic benefits so as to achieve the goal of “fire damage” For the purpose of “fire”. Trial burning using phenological point burning method, commonly known as “with the snow point burning method”, that is, according to the time difference and the difference of the phenology to choose the best timing of ignition, select the appropriate stand, point burning equipment and point burning, etc., Observing all kinds of meteorological elements both inside and outside the forest, as a reference for scientific use of fire. In this study, we cooperated with the Forest Fire Prevention Headquarters of the City of Gibbons. From the autumn of 1983,