摘要
黑龙江省位于我国东北部边疆.省内森林资源丰富,是欧亚大陆北方森林带的重要组成部分,地带性植被属于寒温带针叶林和温带针阔混交林,拥有全国面积最大的天然林,主要分布在大兴安岭北部、小兴安岭和东部山地,全省森林面积共1919万hm2,活立木总蓄积是15.0亿m3.作为一种自然现象,森林火灾在发挥有利作用的同时也在危害着我们宝贵的森林资源,因此.采取科学的方法预防和控制森林火灾的发生已迫在眉睫. 本文通过对近三十年的林火资料分析,绘制了黑龙江省森林火灾的分布图,并根据不同的火灾发生原因分别制图,分析了森林火灾发生的原因,而且探讨了林火发生的时空规律.
Heilongjiang Province locates the northeast frontier of China. It is important component of Eurasia boreal forests zonation because of its abundance of forests resources, its zonal vegetation is taiga and temperate mixed forest, it occupied the most natural forests in whole country.Forest fire, as a type of natural phenomenon, has exerted avail function and it has also imperiled precious forest resources simultaneously. So it is extremely urgent to prevent and control occurrence of forest fire with scientific means.This article drew the distribution map of forest fire in Heilongjiang on basis of the analysis of nearly thirty yerars' fire history data, and made some drawings respectively according to different cause of fire occurrence, analyzed the cause of forest fire, furthermore discussed the spatio梩emporal system of forest fire.
出处
《哈尔滨师范大学自然科学学报》
CAS
2002年第5期95-100,共6页
Natural Science Journal of Harbin Normal University
基金
黑龙江省青年基金项目.编号:Q99-17
