Assessment of soil factors controlling ephemeral gully erosion on agricultural fields

Ollobarren del Barrio, Paul; Campo-Bescós, Miguel; Giménez Díaz, Rafael; Casalí Sarasíbar, Javier

Publication:
Assessment of soil factors controlling ephemeral gully erosion on agricultural fields

dc.contributor.author	Ollobarren del Barrio, Paul
dc.contributor.author	Campo-Bescós, Miguel
dc.contributor.author	Giménez Díaz, Rafael
dc.contributor.author	Casalí Sarasíbar, Javier
dc.contributor.department	Landa Ingeniaritza eta Proiektuak	eu
dc.contributor.department	Institute on Innovation and Sustainable Development in Food Chain - ISFOOD	en
dc.contributor.department	Proyectos e Ingeniería Rural	es_ES
dc.contributor.funder	Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa	es
dc.date.accessioned	2019-03-01T10:21:44Z
dc.date.available	2019-03-01T10:21:44Z
dc.date.issued	2017
dc.description.abstract	The soil factor is crucial in controlling and properly modeling the initiation and development of ephemeral gullies (EGs). Usually, EG initiation has been related to various soil properties (i.e. sealing, critical shear stress, moisture, texture, etc.); meanwhile, the total growth of each EG (erosion rate) has been linked with proper soil erodibility. But, despite the studies to determine the influence of soil erodibility on (ephemeral) gully erosion, a universal approach is still lacking. This is due to the complex relationship and interactions between soil properties and the erosive process. A feasible soil characterization of EG erosion prediction on a large scale should be based on simple, quick and inexpensive tests to perform. The objective of this study was to identify and assess the soil properties – easily and quickly to determine – which best reflect soil erodibility on EG erosion. Forty‐nine different physical–chemical soil properties that may participate in establishing soil erodibility were determined on agricultural soils affected by the formation of EGs in Spain and Italy. Experiments were conducted in the laboratory and in the field (in the vicinity of the erosion paths). Because of its importance in controlling EG erosion, five variables related to antecedent moisture prior to the event that generated the gullies and two properties related to landscape topography were obtained for each situation. The most relevant variables were detected using multivariate analysis. The results defined 13 key variables: water content before the initiation of EGs, organic matter content, cation exchange capacity, relative sealing index, two granulometric and organic matter indices, seal permeability, aggregates stability (three index), crust penetration resistance, shear strength and an erodibility index obtained from the Jet Test erosion apparatus. The latter is proposed as a useful technique to evaluate and predict soil loss caused by EG erosion.	en
dc.description.sponsorship	This study was partly financed by the Spanish Government’s National Plan for Research, Development and Technological Innovation (projects CGL2011-24336 (MICIN/FEDER) and CGL2015-64284-C2-1-R (MINECO/FEDER)). The authors thank the Public University of Navarre (UPNA) for funding this work with a grant awarded to the principal author.	en
dc.format.mimetype	application/pdf	en
dc.identifier.doi	10.1002/esp.4347
dc.identifier.issn	0197-9337 (Print)
dc.identifier.issn	1096-9837 (Electronic)
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/32450
dc.language.iso	eng	en
dc.publisher	Wiley	en
dc.relation.ispartof	Earth Surface Processes and Landforms, 43, 1993–2008 (2018)	en
dc.relation.projectID	info:eu-repo/grantAgreement/MICINN//CGL2011-24336/ES/	en
dc.relation.projectID	info:eu-repo/grantAgreement/MINECO//CGL2015-64284-C2-1-R/ES/	en
dc.relation.publisherversion	https://doi.org/10.1002/esp.4347
dc.rights	© 2018 John Wiley & Sons, Ltd.	en
dc.rights.accessRights	Acceso abierto / Sarbide irekia	es
dc.rights.accessRights	info:eu-repo/semantics/openAccess	en
dc.subject	Ephemeral gully erosion	en
dc.subject	Physico-chemical soil properties	en
dc.subject	Soil erodibility	en
dc.subject	Multivariate statistical analysis	en
dc.subject	Jet erosion test	en
dc.title	Assessment of soil factors controlling ephemeral gully erosion on agricultural fields	en
dc.type	Artículo / Artikulua	es
dc.type	info:eu-repo/semantics/article	en
dc.type.version	Versión aceptada / Onetsi den bertsioa	es
dc.type.version	info:eu-repo/semantics/acceptedVersion	en
dspace.entity.type	Publication
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