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dc.contributor.authorArnó Satorra, Jaume
dc.contributor.authorEscolà i Agustí, Alexandre
dc.contributor.authorMasip Vilalta, Joan
dc.contributor.authorRosell Polo, Joan Ramon
dc.date.accessioned2016-01-22T08:34:43Z
dc.date.available2016-04-30T22:34:30Z
dc.date.issued2015
dc.identifier.issn1385-2256
dc.identifier.urihttp://hdl.handle.net/10459.1/49372
dc.description.abstractTerrestrial laser scanners (TLS) have been used to estimate leaf area and optimise the site-specific management in vineyards. The tree area index (TAI) is a parameter that can be obtained from TLS measurements and has been highly successful in predicting the leaf area index (LAI) in vineyards using linear regression models. However, there are concerns about the possible variation of the models according to the row side on which the scan is performed. A field trial was performed in a North–South oriented vineyard using a tractor-mounted LiDAR system to determine the influence of this operational factor. Four vineyard blocks were scanned from both sides and then defoliated to obtain the real LAI values for 1 m row length sections. Specifically, LAI values were obtained considering the total canopy width and, after separation of the leaves of the right and left sides, LAI values of half canopy were also calculated. To estimate the LAI from the TAI, dummy-variable regression models were used which showed no differences with respect to the scanned side of the canopy. Two consequences are immediate. First, TLS made it possible the LAI mapping of two different rows by scanning from the alley-way with an appropriate laser scanner. Secondly, the same model can be used to estimate the LAI of half canopy (right or left) in operations that require going through all inter-rows (e.g., when applying plant protection products in a vineyard to estimate the vegetation exposed to the sprayer).ca_ES
dc.description.sponsorshipThe authors acknowledge funding from the ERDF (European Regional Development Fund) and the Spanish Ministry of Science and Education (OPTIDOSA research project, AGL2007-66093-C04-03).ca_ES
dc.language.isoengca_ES
dc.publisherSpringerca_ES
dc.relationMIECI/PN2004-2007/AGL2007-66093-C04-03ca_ES
dc.relation.isformatofVersió prosprint del document publicat a https://doi.org/10.1007/s11119-014-9364-7ca_ES
dc.relation.ispartofPrecision Agriculture, 2015, vol. 16, núm. 2, p. 119-128ca_ES
dc.rights(c) Springer, 2015ca_ES
dc.subjectLiDARca_ES
dc.subjectGround-based laser sensorca_ES
dc.subjectTAIca_ES
dc.subjectLAIca_ES
dc.subject.otherSensors làser terrestresca_ES
dc.subject.otherRadar òpticca_ES
dc.subject.otherVinyesca_ES
dc.titleInfluence of the scanned side of the row in terrestrial laser sensor applications in vineyards: practical consequencesca_ES
dc.typearticleca_ES
dc.identifier.idgrec022389
dc.type.versionacceptedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.identifier.doihttps://doi.org/10.1007/s11119-014-9364-7


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