Evaluación de la producción de sedimentos y calidad de las aguas en cuencas agrarias de Navarra

Giménez Díaz, Rafael; Casalí Sarasíbar, Javier; Díez Beregaña, Javier

Publication:
Evaluación de la producción de sedimentos y calidad de las aguas en cuencas agrarias de Navarra

dc.contributor.author	Giménez Díaz, Rafael
dc.contributor.author	Casalí Sarasíbar, Javier
dc.contributor.author	Díez Beregaña, Javier
dc.contributor.department	Proyectos e Ingeniería Rural	es_ES
dc.contributor.department	Landa Ingeniaritza eta Proiektuak	eu
dc.contributor.funder	Gobierno de Navarra / Nafarroako Gobernua	es
dc.date.accessioned	2019-02-12T18:13:56Z
dc.date.available	2019-02-12T18:13:56Z
dc.date.issued	2012
dc.description.abstract	The Government of Navarre (Spain) established a series of experimental watersheds on different sites of its territory in order to assess the impact of the agricultural activities on the environment. Hydrological/meteorological and water quality data are continuously monitored. In this paper, data recorded –precipitation, runoff, sediment, nitrate and phosphate– in two grain-sown watersheds (La Tejería and Latxaga) and in a third one (Oskotz) covered with forest and pasture (cattle-breeding) with a sub-watershed almost entirely under forest, are analyzed; the information covers a period of ca. 15 years. The inter/intra annual variability of the involved processes are studied as well as their impact on the water quality and on the ecosystem. The majority of the sediments yielded in the watersheds are registered during winter, though most of the erosive rainfalls occurred in summer. This is because of the easy-prone runoff that prevailed during winter due to the (much) higher water content of the soils in this period. The grain-sown watersheds –roughly similar at first view– present however important differences regarding sediment yield: 1800 kg/ha year at La Tejería and only 450 kg/ha year at Latxaga. This could be mainly due to differences in morphology, topography, and amount of stream channel vegetation between both sites. At Oskotz this figures are as a whole lower than those registered in the cultivated watersheds but eventually larger than those at Latxaga; this depending on the forest management (logging). Water quality is seriously affected at La Tejería with nitrate concentration constantly over critical threshold. By contrast, nitrate values are much lower in Latxaga watershed. However, phosphate concentrations were similar in both grain-sown watersheds corresponding to water with a significant risk of eutrophication. The cattle-breeding activity at Oskotz generated unexpected levels of phosphate much higher than those registered in the cultivated wathersheds.	en
dc.description.sponsorship	Estos estudios fueron financiados a través de los proyectos I+D CGL2007-63453 y CGL2011-24336 pertenecientes al Ministerio de Ciencia e Innovación del Gobierno de España. Los autores agradecen, además, la generosa contribución del Departamento de Desarrollo Rural y Medio Ambiente del Gobierno de Navarra.	es_ES
dc.format.extent	19 p.
dc.format.mimetype	application/pdf	en
dc.identifier.doi	10.18172/cig.1273
dc.identifier.issn	0211-6820 (Print)
dc.identifier.issn	1697-9540 (Electronic)
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/32245
dc.language.iso	spa	en
dc.publisher	Universidad de La Rioja	es_ES
dc.relation.ispartof	Cuadernos de Investigación Geográfica 38 (1), 2012, p. 7-25	es_ES
dc.relation.projectID	info:eu-repo/grantAgreement/MICINN//CGL2011-24336/ES/	en
dc.relation.publisherversion	http://dx.doi.org/10.18172/cig.1273
dc.rights	© Universidad de La Rioja. Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)	es
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/3.0/
dc.subject	Escorrentía	es_ES
dc.subject	Sedimentos	es_ES
dc.subject	Nitratos	es_ES
dc.subject	Fosfatos	es_ES
dc.subject	Calidad del agua	es_ES
dc.subject	Cuencas experimentales	es_ES
dc.subject	Región mediterránea	es_ES
dc.subject	Uso del suelo	es_ES
dc.subject	Navarra	es_ES
dc.title	Evaluación de la producción de sedimentos y calidad de las aguas en cuencas agrarias de Navarra	es_ES
dc.title.alternative	Evaluation of sediment yield and water quality in agricultural catchments of Navarre (Spain)	en
dc.type	info:eu-repo/semantics/article
dc.type.version	Versión publicada / Argitaratu den bertsioa	es
dc.type.version	info:eu-repo/semantics/publishedVersion	en
dspace.entity.type	Publication
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