黑龙江林区居民生活、取暖所需燃料以木质燃料为主,主要是采伐剩余物、造材剩余物、加工剩余物(简称三个剩余物)及小量的薪炭材。仅省森工总局系统每年就要消耗407万 m~3烧柴。由于林业资源枯竭,为合理开发利用森林资源,给予森林资源休养生息的时间,木材的年产量每年都要缩减,最终要达到合理采伐量。这样以来,“三个剩余 Heilongjiang forest residents living, heating fuel required mainly of wood-based fuels, mainly logging residues, materials leftovers, processing residues (referred to as the three residues) and a small amount of firewood. Only SAIC system will consume 4.07 million m ~ 3 firewood every year. Due to the depletion of forestry resources, in order to rationally develop and utilize forest resources and give forest resources a chance to recuperate and reap, the annual output of timber will be reduced every year, and eventually it will reach a reasonable harvest. In this way, "three remaining