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BIOMASS BURNING: A DRIVER FOR GLOBAL CHANGE

机译:生物质燃烧:全球变化的驱动力

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摘要

Throughout the 4.5-billion-year history of the Earth, the composition and chemistry of the atmosphere as well as the climate of our planet have been shaped by the production of atmospheric gases within the biosphere. In the biosphere, atmospheric gases are produced by various biological processes, including photosynthesis, respiration-decay, nitrification, denitrification, and methanogenesis. Recent research has identified another biospheric process that has instantaneous and longer term effects on the production of atmospheric gases: biomass burning. Biomass burning includes the burning of the world's vegetation—forests, savannas, and agricultural lands—to clear the land and change its use. Only in the past decade have researchers realized the important contributions of biomass burning to the global budgets of many radiatively and chemically active gases—carbon dioxide, methane, nitric oxide, tropospheric ozone, methyl chloride—and elemental carbon particulates.
机译:在地球45亿年的历史中,生物圈内部产生的大气层决定了大气的成分和化学以及我们星球的气候。在生物圈中,大气是通过各种生物过程产生的,包括光合作用,呼吸衰减,硝化,反硝化和甲烷化。最近的研究已经确定了另一个对大气产生具有瞬时和长期影响的生物圈过程:生物质燃烧。生物质燃烧包括燃烧世界上的植被(森林,热带稀树草原和农田),以清理土地并改变其用途。仅在过去的十年中,研究人员才意识到生物质燃烧对许多辐射和化学活性气体(二氧化碳,甲烷,一氧化氮,对流层臭氧,甲基氯)和元素碳颗粒的全球预算的重要贡献。

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