Permafrost and Climate Change: Carbon Cycle Feedbacks From the Warming Arctic
Permafrost and Climate Change: Carbon Cycle Feedbacks From the Warming Arctic
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DOI：
10.1146/annurev-environ-012220-011847
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发表时间：
2022-10
影响因子：
16.4
通讯作者：
E. Schuur;Benjamin W. Abbott;R. Commane;J. Ernakovich;E. Euskirchen;G. Hugelius;G. Grosse;Miriam C. Jones
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文献类型：
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作者：
E. Schuur;Benjamin W. Abbott;R. Commane;J. Ernakovich;E. Euskirchen;G. Hugelius;G. Grosse;Miriam C. Jones
北极环境的快速变化影响了整个地球系统，因为永久冻土的融化将温室气体释放到大气中。了解永久冻土将释放多少碳，在什么时间框架内释放，以及二氧化碳和甲烷的相对排放量将是了解其对全球气候影响的关键。此外，在气候变暖的情况下，植被的响应至少有可能抵消永久冻土碳对气候的部分加速反馈。温度、有机碳和地面冰是决定永久冻土生态系统对全球碳循环影响的关键调节因子。总的来说，这些包括与全球社会以及该地区生活的人们相关的永久冻土服务，并有助于确定该地区对气候变化的景观级响应。
Rapid Arctic environmental change affects the entire Earth system as thawing permafrost ecosystems release greenhouse gases to the atmosphere. Understanding how much permafrost carbon will be released, over what time frame, and what the relative emissions of carbon dioxide and methane will be is key for understanding the impact on global climate. In addition, the response of vegetation in a warming climate has the potential to offset at least some of the accelerating feedback to the climate from permafrost carbon. Temperature, organic carbon, and ground ice are key regulators for determining the impact of permafrost ecosystems on the global carbon cycle. Together, these encompass services of permafrost relevant to global society as well as to the people living in the region and help to determine the landscape-level response of this region to a changing climate.