气候变化领域集成服务门户(CCPortal): A Conceptual Model for Anticipating the Impact of Landscape Evolution on Groundwater Recharge in Degrading Permafrost Environments

CCPortal

DOI	10.1029/2020GL087695
	A Conceptual Model for Anticipating the Impact of Landscape Evolution on Groundwater Recharge in Degrading Permafrost Environments
	Young N.L.; Lemieux J.-M.; Delottier H.; Fortier R.; Fortier P.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:11
英文摘要	Temperatures in the arctic and subarctic are rising at more than twice the rate of the global average, driving the accelerated thawing of permafrost across the region. The impacts of permafrost degradation have been studied in the discontinuous permafrost zone at Umiujaq, in northern Quebec, Canada, for over 30 years, but the effects of changing land cover on groundwater recharge are not well understood. The water table fluctuation method was used to compute groundwater recharge using 4 years of water level data and soil moisture readings from five field sites characteristic of different stages of permafrost degradation and vegetation invasion. Results indicate that as vegetation grows taller, groundwater recharge increases, likely due to increased snow thickness. Results were then combined with a preexisting conceptual model that describes the evolution from tundra to shrubland and forests to create a new model for describing how groundwater recharge is affected by landscape evolution. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Groundwater resources; Permafrost; Soil moisture; Soil surveys; Vegetation; Water levels; Conceptual model; Different stages; Discontinuous permafrost; Ground water recharge; Landscape evolutions; Permafrost degradation; Permafrost environment; Water table fluctuations; Recharging (underground waters); groundwater; land cover; landscape evolution; permafrost; recharge; soil moisture; tundra; water table; Canada; Quebec [Canada]; Umiujaq
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170282
作者单位	Département de géologie et de génie géologique, Université Laval, Québec, QC, Canada; Centre d'études nordiques, Université Laval, Québec, QC, Canada
推荐引用方式 GB/T 7714	Young N.L.,Lemieux J.-M.,Delottier H.,et al. A Conceptual Model for Anticipating the Impact of Landscape Evolution on Groundwater Recharge in Degrading Permafrost Environments[J],2020,47(11).
APA	Young N.L.,Lemieux J.-M.,Delottier H.,Fortier R.,&Fortier P..(2020).A Conceptual Model for Anticipating the Impact of Landscape Evolution on Groundwater Recharge in Degrading Permafrost Environments.Geophysical Research Letters,47(11).
MLA	Young N.L.,et al."A Conceptual Model for Anticipating the Impact of Landscape Evolution on Groundwater Recharge in Degrading Permafrost Environments".Geophysical Research Letters 47.11(2020).