Model prediction capacity of ephemeral gully evolution in conservation tillage systems

Luquin Oroz, Eduardo Adrián; Campo-Bescós, Miguel; Muñoz Carpena, Rafael; Bingner, R.L.; Cruse, Richard M.; Momm, Henrique G.; Wells, R.; Casalí Sarasíbar, Javier

Model prediction capacity of ephemeral gully evolution in conservation tillage systems

dc.contributor.author	Luquin Oroz, Eduardo Adrián
dc.contributor.author	Campo-Bescós, Miguel
dc.contributor.author	Muñoz Carpena, Rafael
dc.contributor.author	Bingner, R.L.
dc.contributor.author	Cruse, Richard M.
dc.contributor.author	Momm, Henrique G.
dc.contributor.author	Wells, R.
dc.contributor.author	Casalí Sarasíbar, Javier
dc.contributor.department	Ingeniaritza	eu
dc.contributor.department	Institute on Innovation and Sustainable Development in Food Chain - ISFOOD	en
dc.contributor.department	Ingeniería	es_ES
dc.contributor.funder	Gobierno de Navarra / Nafarroako Gobernua	es
dc.contributor.funder	Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa	es
dc.date.accessioned	2022-03-29T09:04:12Z
dc.date.available	2022-03-29T09:04:12Z
dc.date.issued	2021
dc.description.abstract	Ephemeral gully (EG) erosion has an important impact on agricultural soil losses and increases field surface hydrology connectivity and transport of pollutants to nearby water bodies. Watershed models including an EG component are scarce and not yet properly evaluated. The objective of this study is to evaluate the capacity of one such tool, AnnAGNPS, to simulate the evolution of two EG formed in a conservation tillage system. The dataset for model testing included runoff measurements and EG morphological characteristics during 3 years. Model evaluation focused on EG evolution of volume, width, and length model outputs, and included calibration and testing phases and a global sensitivity analysis (GSA). While the model did not fully reproduce width and length, the model efficiency to simulate EG volume was satisfactory for both calibration and testing phases, supporting the watershed management objectives of the model. GSA revealed that the most sensitive factors were EG depth, critical shear stress, headcut detachment exponent coefficient b, and headcut detachment leading coefficient a. For EG outputs the model was additive, showing low sensitivity to interactions between the inputs. Prediction of EG spatial evolution on conservation tillage systems requires improved development of gullyerosion components, since many of the processes were developed originally for traditional tillage practices or larger channel systems. Our results identify the need for future research when EG form within conservation tillage systems, in particular to study gully headcut, soil erodibility, and width functions specific to these practices.	en
dc.description.sponsorship	Eduardo Luquin was funded by a scholarship from the Public University of Navarre and received a travel grant from the Government of Navarre for the purpose of the research. This work received funding from the Ministerio de Economía y Competitividad (Government of Spain) via the Research Project CGL2015-64284-C2-1-R.	en
dc.format.extent	17 p.
dc.format.mimetype	application/pdf	en
dc.format.mimetype	application/msword	en
dc.identifier.doi	10.1002/esp.5134
dc.identifier.issn	1096-9837 (Electronic)
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/42609
dc.language.iso	eng	en
dc.publisher	Wiley	en
dc.relation.ispartof	Earth Surface Processes and Landforms. 2021;46:1909–1925	en
dc.relation.projectID	info:eu-repo/grantAgreement/MINECO//CGL2015-64284-C2-1-R/ES/
dc.relation.publisherversion	https://doi.org/10.1002/esp.5134
dc.rights	© 2021 The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in anymedium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	AnnAGNPS	en
dc.subject	Conservation tillage systems	en
dc.subject	Ephemeral gully	en
dc.subject	Erosion	en
dc.subject	Global sensitivity analysis	en
dc.subject	Headcut migration	en
dc.subject	Modeling	en
dc.title	Model prediction capacity of ephemeral gully evolution in conservation tillage systems	en
dc.type	info:eu-repo/semantics/article
dc.type.version	info:eu-repo/semantics/publishedVersion
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