干旱区生态环境知识资源中心(Arid): Old groundwater buffers the effects of a major drought in groundwater-dependent ecosystems of the eastern Sierra Nevada (CA)

Arid

DOI	10.1088/1748-9326/abde5f
	Old groundwater buffers the effects of a major drought in groundwater-dependent ecosystems of the eastern Sierra Nevada (CA)
	Meyers, Zachary P.; Frisbee, Marty D.; Rademacher, Laura K.; Stewart-Maddox, Noah S.
通讯作者	Meyers, ZP (corresponding author), Purdue Univ, Dept Earth Atmospher & Planetary Sci, 550 Stadium Mall Dr, W Lafayette, IN 47907 USA.
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
ISSN	1748-9326
出版年	2021
卷号	16 期号:4
英文摘要	Global groundwater resources are stressed and the effects of climate change are projected to further disrupt recharge processes. Therefore, we must identify the buffers to climate change in hydrogeologic systems in order to understand which groundwater resources will be disproportionally affected by these changes. Here, we utilize a novel combination of remote sensing (e.g. Landsat) and groundwater residence time data (H-3, Cl-36) to identify the factors controlling the hydrogeologic stability of aridland mountain-front springs in response to a major climate event, the 2011-2017 California drought. Desert springs within Owens Valley (CA) support unique ecosystems that are surrounded by lush, green vegetation sustained only by discharging groundwater and are not reliant on localized precipitation. Therefore, the health or ecological response of this vegetation is a direct reflection of the hydrogeologic stability of the mountain-block groundwater system since water is the limiting resource for riparian plant growth in arid regions. We compared spring water residence times to vegetation health metrics computed from Landsat imagery leading up to and during the drought interval. We observe that the vegetation surrounding springs discharging a high fraction of modern and bomb-pulse groundwater (<100 years) showed evidence of increased drying and desiccation as the drought progressed. In comparison, springs discharging a higher fraction of old groundwater (>100 years) showed little response thereby supporting the conceptual model where old groundwater, i.e. a distribution of deep and stable groundwater flowpaths, buffers short- to long-term climate perturbations and may provide hydrogeologic resistance to future effects from climate change.
英文关键词	hydrogeologic resistance groundwater-dependent ecosystems NDVI groundwater residence time Owens Valley
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000635893200001
WOS关键词	CLIMATE-CHANGE ; GREAT-BASIN ; VEGETATION COVER ; UNITED-STATES ; OWENS VALLEY ; MONO-COUNTY ; WATER ; CALIFORNIA ; DYNAMICS ; NDVI
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350151
作者单位	[Meyers, Zachary P.; Frisbee, Marty D.; Stewart-Maddox, Noah S.] Purdue Univ, Dept Earth Atmospher & Planetary Sci, 550 Stadium Mall Dr, W Lafayette, IN 47907 USA; [Rademacher, Laura K.] Univ Pacific, Dept Geol & Environm Sci, 3601 Pacific Ave, Stockton, CA 95211 USA; [Stewart-Maddox, Noah S.] Idaho Water Resources Res Inst, 875 Perimeter Dr MS 3002, Moscow, ID USA
推荐引用方式 GB/T 7714	Meyers, Zachary P.,Frisbee, Marty D.,Rademacher, Laura K.,et al. Old groundwater buffers the effects of a major drought in groundwater-dependent ecosystems of the eastern Sierra Nevada (CA)[J],2021,16(4).
APA	Meyers, Zachary P.,Frisbee, Marty D.,Rademacher, Laura K.,&Stewart-Maddox, Noah S..(2021).Old groundwater buffers the effects of a major drought in groundwater-dependent ecosystems of the eastern Sierra Nevada (CA).ENVIRONMENTAL RESEARCH LETTERS,16(4).
MLA	Meyers, Zachary P.,et al."Old groundwater buffers the effects of a major drought in groundwater-dependent ecosystems of the eastern Sierra Nevada (CA)".ENVIRONMENTAL RESEARCH LETTERS 16.4(2021).