English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/117272
Share/Impact:
Statistics
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:
Title

Effect of gypsum content on soil water retention

AuthorsMoret-Fernández, David ; Herrero Isern, Juan
KeywordsCalcium carbonate equivalent
Gravimetric water content
Gypsic
Issue DateSep-2015
CitationMoret-Fernández D, Herrero J. Effect of gypsum content on soil water retention. Journal of Hydrology 528: 122–126 (2015)
AbstractMany gypsiferous soils occur in arid lands, where the water retention capacity of the soil is vital to plant life and crop production. This study investigated the effect of gypsum content on the gravimetric soil water retention curve (WRC). We analyzed calcium carbonate equivalent (CCE), equivalent gypsum content (EG), soil organic carbon content (SOC), and electrical conductivity of 43 samples collected from various horizons in soils in the Ebro Valley, NE Spain. The WRC of the fine earth was determined using the pressure-plate method (pressure heads = 0, −33, −100, −200, −500, and −1500 kPa), and the gravimetric water retention curves were fitted to the unimodal van Genuchten function. Soil gypsum content had a significant effect on water retention. Soils that had high gypsum content made WRC with higher water retention at near saturation conditions, and steeper WRC slopes. The EG threshold at which gypsum content had an effect on WRC was about 40%, and EG was positively and negatively correlated with the α and n parameters of the WRC, respectively.
Description5 Pags.- 5 Figs.- 2 Tabls. The definitive version is available at: http://www.sciencedirect.com/science/journal/00221694
Publisher version (URL)http://dx.doi.org/10.1016/j.jhydrol.2015.06.030
URIhttp://hdl.handle.net/10261/117272
DOI10.1016/j.jhydrol.2015.06.030
ISSN0022-1694
Appears in Collections:(EEAD) Artículos
Files in This Item:
File Description SizeFormat 
HerreroJ_JHydrol_2015.pdf275,95 kBAdobe PDFThumbnail
View/Open
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.