干旱区生态环境知识资源中心(Arid): Hydrodynamic and hydrochemistry of wet meadows and shallow lakes in areas of the Patagonian basaltic plateaus, Argentina

Arid

DOI	10.1016/j.scitotenv.2020.140897
	Hydrodynamic and hydrochemistry of wet meadows and shallow lakes in areas of the Patagonian basaltic plateaus, Argentina
	Melendi, Edoardo; Tanjal, Carolina; Borzi, Guido; Sol Raigemborn, Maria; Carol, Eleonora
通讯作者	Melendi, E ; Carol, E
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2020
卷号	744
英文摘要	Extra-Andean Patagonia, located in the south end of South America, is a wide arid region where the basaltic plateau landscape dominates. Associated with the basaltic plateaus, wet meadows and shallow lakes make up environments of relevance due to the ecosystemic services they provide. The aim of this work was to define the processes and factors that condition the hydrodynamics and hydrogeochemistry of wet meadows and shallow lakes in a sector of the Patagonian plateau basalts. For this, detailed geological and geomorphological studies were carried out and water was sampled at 29 points for the analysis of major ions and, in some samples, stable isotopes of the water molecule. Values of delta O-18 and delta H-2 similar to the local meteoric line in the water of wet meadows indicate that rainwater quickly infiltrates through the fractures of the basaltic plateaus and stores in the underlying sediments. Groundwater discharge occurs in the scarp zone due to changes in sediment permeability. The weathering of silicates in basalts, ion exchange in the sediment days, and the dissolution of soluble salts provided by the dust control water chemistry of this wetland. Water from wet meadows drains into saline endorheic basins of sodium chloride composition where the isotopic signal is indicative of evaporation percentages dose to 95%. The high evaporation rates cause the precipitation of evaporitic salts at the edges of shallow lakes with carbonate, sulfate, and chloride species controlled by the dominance of sodium in the water. (C) 2020 Published by Elsevier B.V.
英文关键词	Wetland Water supply Arid regions Water resources Extra Andean Patagonia
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000573748900016
WOS关键词	SANTA-CRUZ ; GROUNDWATER ; EVAPOTRANSPIRATION ; BIODIVERSITY ; EVAPORATION ; DIVERSITY ; PATTERNS ; WETLANDS ; REGION ; AGE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326561
作者单位	[Melendi, Edoardo; Tanjal, Carolina; Borzi, Guido; Sol Raigemborn, Maria; Carol, Eleonora] Univ Nacl La Plata UNLP, Ctr Invest Geol CIG, Consejo Nacl Invest Cient & Tecn CDNICET, La Plata, Argentina
推荐引用方式 GB/T 7714	Melendi, Edoardo,Tanjal, Carolina,Borzi, Guido,et al. Hydrodynamic and hydrochemistry of wet meadows and shallow lakes in areas of the Patagonian basaltic plateaus, Argentina[J],2020,744.
APA	Melendi, Edoardo,Tanjal, Carolina,Borzi, Guido,Sol Raigemborn, Maria,&Carol, Eleonora.(2020).Hydrodynamic and hydrochemistry of wet meadows and shallow lakes in areas of the Patagonian basaltic plateaus, Argentina.SCIENCE OF THE TOTAL ENVIRONMENT,744.
MLA	Melendi, Edoardo,et al."Hydrodynamic and hydrochemistry of wet meadows and shallow lakes in areas of the Patagonian basaltic plateaus, Argentina".SCIENCE OF THE TOTAL ENVIRONMENT 744(2020).