TY - JOUR PY - 2019// TI - Biophysical feedback of global forest fires on surface temperature JO - Nature communications A1 - Liu, Zhihua A1 - Ballantyne, Ashley P. A1 - Cooper, L. Annie SP - e214 EP - e214 VL - 10 IS - 1 N2 - The biophysical feedbacks of forest fire on Earth's surface radiative budget remain uncertain at the global scale. Using satellite observations, we show that fire-induced forest loss accounts for about 15% of global forest loss, mostly in northern high latitudes. Forest fire increases surface temperature by 0.15 K (0.12 to 0.19 K) one year following fire in burned area globally. In high-latitudes, the initial positive climate-fire feedback was mainly attributed to reduced evapotranspiration and sustained for approximately 5 years. Over longer-term (> 5 years), increases in albedo dominated the surface radiative budget resulting in a net cooling effect. In tropical regions, fire had a long-term weaker warming effect mainly due to reduced evaporative cooling. Globally, biophysical feedbacks of fire-induced surface warming one year after fire are equivalent to 62% of warming due to annual fire-related CO2 emissions. Our results suggest that changes in the severity and/or frequency of fire disturbance may have strong impacts on Earth's surface radiative budget and climate, especially at high latitudes.
Language: en
LA - en SN - 2041-1723 UR - http://dx.doi.org/10.1038/s41467-018-08237-z ID - ref1 ER -