论文部分内容阅读
黑龙江林区最易燃的是沟塘中的杂草,在干旱大风的天气里,当其含水率降到9%时,星星之火即可点燃,而且一旦燃烧火势大蔓延速度快,不易扑打。绝大多数的森林火灾是从沟塘中引燃上山造成的。春季点烧战略防火线,虽然极度注意,还有跑火现象发生,还有烧过的塔头须根复燃跑火。主要是林地与草地之间无防火隔离带,如果开垦草坡为农耕地可以大大地减少此地段的地被物的生物量,形成林草之间的低火险区,比人工打割的防火线防火效果好。可作为点烧大沟塘的安全依托。
Heilongjiang forest is the most flammable forest ditch weeds, in arid windy weather, when its moisture content dropped to 9%, the sparks of the stars can be ignited, and once the burning fire spread fast, not easy to swat . The vast majority of forest fires are caused by the ignition of the mountain up the ditch pond. Point fire spring fire strategy line, although the extreme attention, as well as the phenomenon of running fire, burned tower head whisker rejuvenated fire. Mainly there is no fire isolation zone between forest land and grassland. If reclamation of grass slope for farmland can greatly reduce the biomass of the ground cover in this area, a low fire danger zone between forest and grass is formed, which is lower than the artificial fire line Good fireproof effect. Can be used as a point of burning pond ditch safety support.