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Spatial variability of soil properties and soil erodibility in the Alqueva reservoir watershed

2015Journal article Open Access
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dc.contributor.authorFerreira, V.
dc.contributor.authorPanagopoulos, Thomas
dc.contributor.authorAndrade, R.
dc.contributor.authorGuerrero, Carlos
dc.contributor.authorLoures, L.
dc.date.accessioned2018-12-07T14:58:26Z
dc.date.available2018-12-07T14:58:26Z
dc.date.issued2015
dc.description.abstractThe aim of this work is to investigate how the spatial variability of soil properties and soil erodibility (K factor) were affected by the changes in land use allowed by irrigation with water from a reservoir in a semiarid area. To this end, three areas representative of different land uses (agroforestry grassland, lucerne crop and olive orchard) were studied within a 900 ha farm. The interrelationships between variables were analyzed by multivariate techniques and extrapolated using geostatistics. The results confirmed differences between land uses for all properties analyzed, which was explained mainly by the existence of diverse management practices (tillage, fertilization and irrigation), vegetation cover and local soil characteristics. Soil organic matter, clay and nitrogen content decreased significantly, while the K factor increased with intensive cultivation. The HJ-Biplot methodology was used to represent the variation of soil erodibility properties grouped in land uses. Native grassland was the least correlated with the other land uses. The K factor demonstrated high correlation mainly with very fine sand and silt. The maps produced with geostatistics were crucial to understand the current spatial variability in the Alqueva region. Facing the intensification of land-use conversion, a sustainable management is needed to introduce protective measures to control soil erosion.
dc.identifier.doi10.5194/se-6-383-2015
dc.identifier.issn1869-9510
dc.identifier.issn1869-9529
dc.identifier.urihttp://hdl.handle.net/10400.1/12024
dc.language.isoeng
dc.peerreviewedyes
dc.publisherCopernicus Gesellschaft Mbh
dc.relation“Assessing soil erosion due to land use change at the Alqueva reservoir surrounding area.”
dc.subjectLand-use
dc.subjectPhysical-properties
dc.subjectBiplot perspective
dc.subjectOrganic-matter
dc.subjectIowa soils
dc.subjectErosion
dc.subjectManagement
dc.subjectClimate
dc.subjectField
dc.subjectEnvironment
dc.titleSpatial variability of soil properties and soil erodibility in the Alqueva reservoir watershed
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitle“Assessing soil erosion due to land use change at the Alqueva reservoir surrounding area.”
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAAC-AMB%2F102173%2F2008/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F69548%2F2010/PT
oaire.citation.endPage392
oaire.citation.issue2
oaire.citation.startPage383
oaire.citation.titleSolid Earth Sciences
oaire.citation.volume6
oaire.fundingStream3599-PPCDT
person.familyNamePanagopoulos
person.familyNameGuerrero
person.givenNameThomas
person.givenNameCarlos
person.identifierR-000-K9N
person.identifier.ciencia-id411D-5652-57A8
person.identifier.ciencia-id821B-7ADF-B6DC
person.identifier.orcid0000-0002-8073-2097
person.identifier.orcid0000-0001-9907-8235
person.identifier.ridA-3048-2012
person.identifier.ridD-3485-2016
person.identifier.scopus-author-id9736690000
person.identifier.scopus-author-id24767767200
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
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