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林业科学 ›› 2009, Vol. 12 ›› Issue (6): 166-172.doi: 10.11707/j.1001-7488.20090630

• 论文 • 上一篇    下一篇

气候变暖背景下内蒙古大兴安岭林区森林火灾发生日期的变化*

赵凤君1 舒立福1 邸雪颖2 田晓瑞1 王明玉1   

  1. (1.中国林业科学研究院森林生态环境与保护研究所 国家林业局森林保护学重点实验室 北京100091;2.东北林业大学 哈尔滨150040)
  • 收稿日期:2007-12-12 修回日期:1900-01-01 出版日期:2009-06-25 发布日期:2009-06-25
  • 通讯作者: 舒立福

Changes in the Occurring Date of Forest Fires in the Inner Mongolia Daxinganling Forest Region Under Global Warming

Zhao Fengjun1,Shu Lifu1,Di Xueying2,Tian Xiaorui1,Wang Mingyu1   

  1. (1.Research Institute of Forest Ecology,Environment and Protection,CAF Key Open Laboratory of Forest Protection of State Forestry Administration Beijing 100091; 2.Northeast Forestry University Harbin 150040)
  • Received:2007-12-12 Revised:1900-01-01 Online:2009-06-25 Published:2009-06-25

关键词: Julian日期, 气候变暖, 火险期, 林火动态, 大兴安岭

Abstract:

By using Julian Date methods, this paper studied the changes of forest fire occurring date during 1980~2006 in Inner Mongolia Daxing'anling forest region, as well as discussed the changes of fire season and forest fire regime under global warming. The results indicated that Julian Date of fires changed obviously, i.e. the fires Julian Date in spring extended into summer markedly, and at the same time summer fires were mostly caused by lightning fires. The Julian Date of human-caused fires did not evidently change. In recent some years, the forest fires occurred in summer actually exceeded the sum of fires occurred in spring and autumn. Consequently, the fire seasons are not only in spring and autumn, so long as the litter has not been covered by snow, forest fires possibly take place. In the future, under a warmer climate, the authors’ suggestion for forest fire management departments is to adequately understand these forest fire regime changes and make adaptive policies, in order to reduce the damage induced by forest fires.

Key words: Julian date, global warming, fire season, forest fire regime, Daxing&rsquo, anling