English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/43438
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Diffuse and concentrated recharge evaluation using physical and tracer techniques: results from a semiarid carbonate massif aquifer in southeastern Spain

AuthorsAlcalá, Francisco J. ; Cantón, Yolanda ; Contreras, Sergio ; Were, Ana ; Serrano-Ortiz, Penélope ; Puigdefábregas, Juan ; Solé-Benet, Albert ; Custodio, Emilio; Domingo, Francisco
Mountain carbonate areas
Semiarid climate
SE Spain
Issue Date4-Apr-2010
CitationEnvironmental Earth Sciences 62(3): 541-557 (2010)
AbstractIn the high-permeability, semiarid carbonate aquifer in the Sierra de Gádor Mountains (southeastern Spain), some local springs draining shallow perched aquifers were of assistance in assessing applicability of the atmospheric chloride mass balance (CMB) for quantifying total yearly recharge (RT) by rainfall. Two contrasting hydrological years (October through September) were selected to evaluate the influence of climate on recharge: the average rainfall year 2003–2004, and the unusually dry 2004–2005. Results at small catchment scale were calibrated with estimated daily stand-scale RT obtained by means of a soil water balance (SWB) of rainfall, using the actual evapotranspiration measured by the eddy covariance (EC) technique. RT ranged from 0.35 to 0.40 of rainfall in the year, with less than a 5% difference between the CMB and SWB methods in 2003–2004. RT varied from less than 0.05 of rainfall at mid-elevation to 0.20 at high elevation in 2004–2005, with a similar difference between the methods. Diffuse recharge (RD) by rainfall was quantified from daily soil water content field data to split RT into RD and the expected concentrated recharge (RC) at catchment scale in both ydrological years. RD was 0.16 of rainfall in 2003–2004 and 0.01 in 2004–2005. Under common 1- to 3-day rainfall events, the hydraulic effect of RD is delayed from 1 day to 1 week, while RC is not delayed. This study shows that the CMB method is a suitable tool for yearly values complementing and extending the more widely used SWB in ungauged mountain carbonate aquifers with negligible runoff. The slight difference between RT rates at small catchment and stand scales enables results to be validated and provides new estimates to parameterize RT with rainfall depth after checking the weight of diffuse and concentrated mechanisms on RT during moderate rainfall periods and episodes of marked climatic aridity.
Publisher version (URL)http://dx.doi.org/10.1007/s12665-010-0546-y
Appears in Collections:(EEZA) Artículos
Files in This Item:
File Description SizeFormat 
restringido.pdf21,67 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.