林火与气候变化研究进展

火是全球大多森林生态系统中的一个重要干扰因子, 它对大气中的温室气体和气溶胶的增加有显著影响。林火与气候变化是当前林火研究领域的热点问题。文中综述了气候变化对林火的影响和林火排放物对气候变化的影响。大量研究表明, 气候变化将导致森林火险期延长, 出现潜在极端火行为的天数增多, 森林火灾更加严重, 特别是北方森林火灾增加显著。未来的研究趋势是, 采用卫星遥感数据在大尺度上研究气候变化对林火的影响, 把林火模型与气候模式和全球植被动力学模型耦合, 构建更为复杂的林火排放模型, 以深入揭示林火与气候变化的关系。

Review on the Researches of Forest Fire and Climate Change

Fire is an important disturbing factor in most forest ecosystems.Forest burning set out a great deal of greenhouse gases and have a significant influence on gases and aerosol of the atmosphere.Forest fire and climate change become a hot research topic in fire research field.The paper reviews the researches of forest fire and climate change,which includes forecasting fire season and fire behavior change in future climate scenario and assessing influences of fire emissions on climate change and global carbon cycle.A number of researches shows that the climate change will cause a longer fire season and more extreme fire weather,which make more fire activities.Especially fires in boreal forest will increase significantly.A trend of the current research is to apply satellite remote sensing data and study on the influence of climate change on forest fire on the large scale.The fire model,general climate model and global vegetation dynamics model should be coupled together to discovery the relationship between forest fire and climate change.