Investigation of vegetation-snow-permafrost-climate interactions for improved predictions of the permafrost thermal regime

研究植被-雪-永久冻土-气候相互作用，以改进对永久冻土热状况的预测

• 批准号: 434918-2013
• 负责人: Domine, Florent
• 金额: $ 1.97万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=552705
• 关键词: Investigation; vegetation; snow; permafrost; climate

The thawing of permafrost caused by global warming could release tens of Pg of carbon in the form of CO2 and CH4 to the atmosphere. This could constitute a major positive feedback in a warming climate. Furthermore, permafrost thawing has a significant impact on Northern communities and on the development of the Arctic. Quantifying the rate of permafrost evolution and mitigating its effect is therefore an issue of scientific, societal and economic interest.

全球变暖导致的冻土融化可能会以CO2和CH4的形式向大气中释放数十Pg的碳。这可能是气候变暖的一个主要积极反馈。此外，永久冻土的融化对北方社区和北极的发展有重大影响。因此，量化永久冻土演变的速度并减轻其影响是一个具有科学、社会和经济意义的问题。