SHENZHEN, China, Oct. 18, 2021 /PRNewswire/ -- Zheng Bo's team at the Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School (SIGS), has developed a novel atmospheric inversion system to infer global wildfire carbon emissions from satellite retrievals of carbon monoxide, investigated the spatial and temporal
Satellites have detected a global decline in fire burned areas over grasslands, coincident with a small increase over forests over the past decades. Bo Zheng and his colleagues developed an atmospheric inversion system to show that global fire emissions have been stable or slightly decreasing despite the substantial decline in global burned area since 2000, caused by emission increase from forest fires offsetting the decreasing emissions from grass and shrubland fires. Forest fires are larger CO2 sources per unit area burned than grassland fires, with a slow or incomplete follow-up recovery — sometimes no recovery due to degradation and deforestation. With fires expanding over forest areas, the slow recovery of CO2 uptake over burned forest lands weakens land sink capacity, implying that pressures from global fires on climate have not been relieved despite the decline in global burned area.
Tsinghua SIGS is a graduate education and research institution jointly established by the prestigious Tsinghua University and the Shenzhen Government. The Institute of Environment and Ecology (IEE) is a vital part of Tsinghua's environmental science discipline. Oriented to the core needs of high-quality development and based on the forefront of international disciplines, the institute is committed to studying the theory of ecological and environmental protection, investigating key technologies, cultivating high-level personnel with global competence, and providing science and technology talent support for ecological civilization and community building with a shared future for mankind.
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