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How changes in cropping intensity affect water usage in an irrigated Mediterranean catchment

2021Journal article Restricted access
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dc.contributor.authorDuarte, A.C.
dc.contributor.authorMateos, Luciano
dc.date.accessioned2021-11-29T14:52:02Z
dc.date.available2021-11-29T14:52:02Z
dc.date.issued2021
dc.description.abstractAgricultural policies and social change influence irrigation management decisions and their associated effects. The changes in the Common Agricultural Policy of the European Union have deeply affected irrigated agriculture in the Mediterranean region. In this region, hydrology is rather complex and the environment particularly vulnerable. We monitored cropping patterns and the water balance in a sprinkler-irrigated catchment in Central Portugal over thirteen irrigation seasons and twelve rainfall seasons. There was wide variation in annual rainfall (from 283 mm to 667 mm) and in the intensity of rainfall events from year to year. A monitoring station at the catchment outlet was installed to measure runoff which, together with field observations, allowed us to compute a water balance for both the rainfed and the irrigation seasons. Changes in cropping intensity led to changes in the depth of irrigation. Irrigation runoff followed irrigation depth and both followed the trend of cropping intensity. Less intensive cropping also reduced the off-site effects of agricultural activities. The runoff coefficient was 0.28 in the rainfed seasons and 0.02 in the irrigation seasons. The changes in the irrigation hydrology and in the off-site effects of agricultural activities in the catchment were caused by changes in cropping intensity induced by the European Union Common Agricultural Policy reforms, rather than by environmental or technical factors.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDUARTE, A.C. ; MATEOS, Luciano (2021) - How changes in cropping intensity affect water usage in an irrigated Mediterranean catchment. Agricultural Water Management, 260, 107274.pt_PT
dc.identifier.doihttps://doi.org/10.1016/j.agwat.2021.107274pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.11/7720
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectIrrigation performancept_PT
dc.subjectCatchmentpt_PT
dc.subjectCommon Agricultural Policypt_PT
dc.subjectRunoff coefficientpt_PT
dc.subjectRelative irrigation supplypt_PT
dc.subjectIrrigation consumptive use coefficientpt_PT
dc.titleHow changes in cropping intensity affect water usage in an irrigated Mediterranean catchmentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleAgricultural Water Managementpt_PT
person.familyNameCANATÁRIO DUARTE
person.familyNameMateos
person.givenNameANTÓNIO
person.givenNameLuciano
person.identifier.ciencia-id0717-AB48-E1A3
person.identifier.orcid0000-0002-0319-378X
person.identifier.orcid0000-0002-3046-6448
person.identifier.ridB-2309-2013
person.identifier.scopus-author-id54901177900
person.identifier.scopus-author-id7003901829
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationff1ed167-3f68-4e2b-b092-aaa0eb28ae6b
relation.isAuthorOfPublication762e6ed0-1fcb-4646-83bb-3cbfa566c0c2
relation.isAuthorOfPublication.latestForDiscoveryff1ed167-3f68-4e2b-b092-aaa0eb28ae6b

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