干旱区生态环境知识资源中心(Arid): Hydrochemical and Isotopic Characterization of the Waters of the Manglaralto River Basin (Ecuador) to Contribute to the Management of the Coastal Aquifer

Arid

DOI	10.3390/w13040537
	Hydrochemical and Isotopic Characterization of the Waters of the Manglaralto River Basin (Ecuador) to Contribute to the Management of the Coastal Aquifer
	Carrion-Mero, Paul; Montalvan, F. Javier; Morante-Carballo, Fernando; Heredia, Javier; Elorza, F. Javier; Solorzano, Joselyne; Aguilera, Hector
通讯作者	Carrion-Mero, P ; Solorzano, J (corresponding author), ESPOL Polytech Univ, Ctr Invest & Proyectos Aplicados Ciencias Tierra, Campus Gustavo Galindo,Km 30-5 Via Perimetral, Guayaquil, Ecuador. ; Carrion-Mero, P ; Solorzano, J (corresponding author), ESPOL Polytech Univ, Fac Ingn Ciencias Tierra FICT, Campus Gustavo Galindo,Km 30-5 Via Perimetral, Guayaquil, Ecuador.
来源期刊	WATER
EISSN	2073-4441
出版年	2021
卷号	13 期号:4
英文摘要	Coastal aquifers are strategic and fundamental in the development of touristic areas. The coastal aquifer within the Manglaralto River Basin in Ecuador is essential, as it is the only source of water supply for a large part of the northern part of the Santa Elena province. It is a semi-arid region where high volumes of water are pumped from the aquifer, causing a significant drawdown of groundwater levels, thus affecting the water quality. This work aims to characterize the characteristics of groundwater in the coastal aquifer using hydrochemistry and stable isotopes to propose a hydrogeological conceptual model. The methodology for determining the chemical and isotopic characteristics of groundwater follows the following scheme: (i) studies of ionic concentrations using the Piper diagram, (ii) assessment of the origin of salinity through the Cl/Br ratio, the presence of seawater intrusion through the Hydrochemical Facies Evolution Diagram HFE-D, (iii) characterization of precipitation events using stable isotopes (O-18 and H-2), and, (iv) development of a hydrogeological conceptual model of the study area. The results indicate that in the basin there are mixing processes of the existing water in the aquifer with recharge water, direct cation exchange processes in the freshening process during recharge, and evaporation in the unsaturated zone. A conceptual model of the flow system in the basin is built, based on the mentioned processes. The main conclusions are: seawater intrusion is present in the areas of the wells located closest to the coast, urban activity through septic tanks is affecting the quality of the aquifer, and rainfall is highly relevant in the different hydrochemical and isotopic processes that operate in the basin.
英文关键词	Manglaralto coastal aquifer seawater intrusion freshening hydrochemical isotopes
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:000624886100001
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351936
作者单位	[Carrion-Mero, Paul; Morante-Carballo, Fernando; Solorzano, Joselyne] ESPOL Polytech Univ, Ctr Invest & Proyectos Aplicados Ciencias Tierra, Campus Gustavo Galindo,Km 30-5 Via Perimetral, Guayaquil, Ecuador; [Carrion-Mero, Paul; Solorzano, Joselyne] ESPOL Polytech Univ, Fac Ingn Ciencias Tierra FICT, Campus Gustavo Galindo,Km 30-5 Via Perimetral, Guayaquil, Ecuador; [Montalvan, F. Javier] Univ Estatal Peninsula Santa Elena UPSE, Fac Ciencias Ingn, Ctr Invest & Innovac Geociencias CIGEO, Avda Principal La Libertad Santa Elena, La Libertad LIBERTAD, Ecuador; [Morante-Carballo, Fernando] ESPOL Polytech Univ, Fac Ciencias Nat & Matemat FCNM, Campus Gustavo Galindo,Km 30-5 Via Perimetral, Guayaquil, Ecuador; [Morante-Carballo, Fernando] ESPOL Polytech Univ, Georecursos & Aplicac GIGA, Campus Gustavo Galindo,Km 30-5 Via Perimetral, Guayaquil, Ecuador; [Heredia, Javier; Aguilera, Hector] Inst Geol & Minero Espana, Rios Rosas 23, Madrid 28003, Spain; [Elorza, F. Javier] Univ Politecn Madrid, ETSI Minas & Energia ...
推荐引用方式 GB/T 7714	Carrion-Mero, Paul,Montalvan, F. Javier,Morante-Carballo, Fernando,et al. Hydrochemical and Isotopic Characterization of the Waters of the Manglaralto River Basin (Ecuador) to Contribute to the Management of the Coastal Aquifer[J],2021,13(4).
APA	Carrion-Mero, Paul.,Montalvan, F. Javier.,Morante-Carballo, Fernando.,Heredia, Javier.,Elorza, F. Javier.,...&Aguilera, Hector.(2021).Hydrochemical and Isotopic Characterization of the Waters of the Manglaralto River Basin (Ecuador) to Contribute to the Management of the Coastal Aquifer.WATER,13(4).
MLA	Carrion-Mero, Paul,et al."Hydrochemical and Isotopic Characterization of the Waters of the Manglaralto River Basin (Ecuador) to Contribute to the Management of the Coastal Aquifer".WATER 13.4(2021).