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dc.contributor.authorMiranda Fuentes, Antonio
dc.contributor.authorLlorens, Jordi
dc.contributor.authorGamarra-Diezma, Juan Luis
dc.contributor.authorGil Moya, Emilio
dc.contributor.authorGil Ribes, Jesús
dc.date.accessioned2017-11-06T12:30:14Z
dc.date.available2017-11-06T12:30:14Z
dc.date.issued2015
dc.identifier.urihttp://hdl.handle.net/10396/15305
dc.description.abstractAccurate crown characterization of large isolated olive trees is vital for adjusting spray doses in three-dimensional crop agriculture. Among the many methodologies available, laser sensors have proved to be the most reliable and accurate. However, their operation is time consuming and requires specialist knowledge and so a simpler crown characterization method is required. To this end, three methods were evaluated and compared with LiDAR measurements to determine their accuracy: Vertical Crown Projected Area method (VCPA), Ellipsoid Volume method (VE) and Tree Silhouette Volume method (VTS). Trials were performed in three different kinds of olive tree plantations: intensive, adapted one-trunked traditional and traditional. In total, 55 trees were characterized. Results show that all three methods are appropriate to estimate the crown volume, reaching high coefficients of determination: R2 = 0.783, 0.843 and 0.824 for VCPA, VE and VTS, respectively. However, discrepancies arise when evaluating tree plantations separately, especially for traditional trees. Here, correlations between LiDAR volume and other parameters showed that the Mean Vector calculated for VCPA method showed the highest correlation for traditional trees, thus its use in traditional plantations is highly recommended.es_ES
dc.format.mimetypeapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0/es_ES
dc.sourceSensors 15(2), 3671-3687 (2015)es_ES
dc.subjectTerrestrial LiDARes_ES
dc.subjectCanopy characterizationes_ES
dc.subjectOlive treees_ES
dc.subjectTree crown volumees_ES
dc.titleTowards an Optimized Method of Olive Tree Crown Volume Measurementes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttp://dx.doi.org/10.3390/s150203671es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES


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