干旱区生态环境知识资源中心(Arid): Sensitivity of groundwater levels and chemistry to partial removal of vegetation in Prosopis woodlands of the Monte Desert, Argentina

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DOI	10.1016/j.jhydrol.2021.126264
	Sensitivity of groundwater levels and chemistry to partial removal of vegetation in Prosopis woodlands of the Monte Desert, Argentina
	Meglioli, Pablo A.; Villagra, Pablo E.; Aranibar, Julieta N.; Magliano, Patricio N.; Jobbagy, Esteban G.
通讯作者	Meglioli, PA (corresponding author), Consejo Nacl Invest Cient & Tecn CONICET Mendoza, Inst Argentino Nivol Glaciol & Ciencias Ambiental, Av Ruiz Leal S-N,Parque Gen San Martin, RA-5500 Mendoza, Argentina.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	598
英文摘要	Land use changes affecting ecological and hydrological processes often shape the biogeochemistry of deserts. As highly productive hotspots, Prosopis flexuosa woodlands located in interdune lowlands of the Monte Desert are subject to intense transformations by humans and livestock, and offer a unique opportunity to understand how phreatophyte vegetation, groundwater, rainfall variability, and vertical solute fluxes connect with each other. In this ecosystem, we evaluated the consequences of heavy disturbance by livestock settlements (partial tree removal, intense grazing) on shallow (7-15 m deep) groundwater recharge/discharge dynamics and vertical solute (nutrients and salts) transport. We compared three relatively undisturbed woodlands with three paired livestock stations in the Telteca Reserve (Mendoza, Argentina). At these locations we monitored groundwater levels and chemical and isotopic compositions during six years (2011-2017). Seasonal groundwater level fluctuations reflected shifts in water demand (lower in the cold season) rather than rainfall (high in the warm season), as shown by fall-winter rises and spring-summer declines. These seasonal fluctuations were more intense in undisturbed woodlands than in livestock stations. At a shorter time scale, intense rainfall events were associated to groundwater level raises, suggesting a partial decoupling of phreatophyte vegetation from the free aquifer and, less likely, recharge episodes. Livestock stations also affected groundwater chemistry by locally increasing chloride and nitrate concentrations, and salinity, suggesting higher water percolation and nitrate leaching to the aquifer in livestock stations than in control woodlands. This study addressed ecohydrological processes, which are necessary to understand the coupling between phreatophyte vegetation and groundwater, and its relationships with human and livestock activities.
英文关键词	Ecohydrology Forest hydrology Grazing Groundwater Phreatophyte vegetation Prosopis woodlands
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000661813200093
WOS关键词	ENVIRONMENTAL TRACERS ; LAND-USE ; WATER ; NITRATE ; PLANT ; EVAPOTRANSPIRATION ; FLUCTUATIONS ; ECOSYSTEMS ; STRATEGIES ; MOVEMENT
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350910
作者单位	[Meglioli, Pablo A.; Villagra, Pablo E.; Aranibar, Julieta N.] Consejo Nacl Invest Cient & Tecn CONICET Mendoza, Inst Argentino Nivol Glaciol & Ciencias Ambiental, Av Ruiz Leal S-N,Parque Gen San Martin, RA-5500 Mendoza, Argentina; [Meglioli, Pablo A.; Villagra, Pablo E.] Univ Nacl Cuyo, Fac Ciencias Agr, Almirante Brown 500, RA-5505 Mendoza, Argentina; [Aranibar, Julieta N.] Univ Nacl Cuyo, Fac Ciencias Exactas & Nat, Ciudad Univ,Parque Gen San Martin, RA-5500 Mendoza, Argentina; [Magliano, Patricio N.; Jobbagy, Esteban G.] Univ Nacl San Luis, Grp Estudios Ambientales GEA IMASL, Avda Ejercito Andes 950, RA-5700 San Luis, Argentina; [Magliano, Patricio N.; Jobbagy, Esteban G.] Consejo Nacl Invest Cient & Tecn, Avda Ejercito Andes 950, RA-5700 San Luis, Argentina; [Magliano, Patricio N.] Univ Nacl San Luis, Fac Quim Bioquim & Farm, Dept Biol, Ejercito Andes 950, RA-5700 San Luis, Argentina
推荐引用方式 GB/T 7714	Meglioli, Pablo A.,Villagra, Pablo E.,Aranibar, Julieta N.,et al. Sensitivity of groundwater levels and chemistry to partial removal of vegetation in Prosopis woodlands of the Monte Desert, Argentina[J],2021,598.
APA	Meglioli, Pablo A.,Villagra, Pablo E.,Aranibar, Julieta N.,Magliano, Patricio N.,&Jobbagy, Esteban G..(2021).Sensitivity of groundwater levels and chemistry to partial removal of vegetation in Prosopis woodlands of the Monte Desert, Argentina.JOURNAL OF HYDROLOGY,598.
MLA	Meglioli, Pablo A.,et al."Sensitivity of groundwater levels and chemistry to partial removal of vegetation in Prosopis woodlands of the Monte Desert, Argentina".JOURNAL OF HYDROLOGY 598(2021).