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A new approach to quantify grazing pressure under Mediterranean pastoral systems using GIS and remote sensing

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dc.contributor.authorCastro, Marina
dc.contributor.authorAmeray, Abderrahmane
dc.contributor.authorCastro, João Paulo
dc.date.accessioned2019-06-07T08:18:11Z
dc.date.available2019-06-07T08:18:11Z
dc.date.issued2019
dc.description.abstractPastoral systems based on grazing itineraries, very common along the Mediterranean region, provides an opportunity to search feeding resources at landscape scale under a silvopastoral system called by San Miguel (2004) as “Mosaic of different land uses within one management unit”. However daily and seasonal movements of flocks bring on different Grazing Pressure (GP) over the landscape. This study presents an approach to modeling sheep GP under a Mediterranean pastoral system in Northeast of Portugal. The pressure of grazing in a given location depends on Distance from the stable to the border of the parish, Distance to the stable, Stocking Density (SD) (sheep/ha) and preferences for land use and land cover (LULC) (Castro et al., 2004). Geoprocessing integrates several geodatabases, a) land use (COS2015), b) parishes boundaries (DGT, 2017), c) stables location (0108_OTSA_2_E), and d) Sentinel-2 data. SD was performed by Multiple Ring Buffer tool and Ordinary kriging. Homogeneous LULC units (Permanent Crops; Annual crops; Forest; Shrubland; Grassland; Waterland) were obtained by Supervised classification algorithms. The COS2015 was used to establish a mask of the urban area and ungrazed forests. The best performing preferences classifier was Randon Forest (kappa=89,3%; global accuracy=91%). Integrating the LULC grazing and the SD (Weighted Overlay tool) allows to calculate and to map the GP (figure 1). The most common GP in grazing classes is about 4.7 sheep/ha.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCastro, Marina; Ameray, Abderrahmane; Castro, João Paulo (2019). A new approach to quantify grazing pressure under Mediterranean pastoral systems using GIS and remote sensing. In 4th World Congress on Agroforestry: book of abstracts. Montpellierpt_PT
dc.identifier.urihttp://hdl.handle.net/10198/19335
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCIRAD-INRApt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectLULC classificationpt_PT
dc.subjectSilvopastoral systempt_PT
dc.subjectGeoprocessingpt_PT
dc.titleA new approach to quantify grazing pressure under Mediterranean pastoral systems using GIS and remote sensingpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceMontpellierpt_PT
oaire.citation.endPage571pt_PT
oaire.citation.startPage571pt_PT
oaire.citation.title4th World Congress on Agroforestrypt_PT
person.familyNameCastro
person.familyNameCastro
person.givenNameMarina
person.givenNameJoão Paulo
person.identifier2303569
person.identifier.ciencia-id6417-7D8D-FD7E
person.identifier.ciencia-id8D19-DBCC-8EF5
person.identifier.orcid0000-0002-6368-8098
person.identifier.orcid0000-0003-0647-8892
person.identifier.ridB-5197-2016
person.identifier.ridA-8581-2014
person.identifier.scopus-author-id56612728000
person.identifier.scopus-author-id21233448700
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublicationa7a3b08e-9d22-4faf-9224-36924d8ce7c8
relation.isAuthorOfPublication17820e65-bb0d-434b-bfef-4bb539f614a5
relation.isAuthorOfPublication.latestForDiscovery17820e65-bb0d-434b-bfef-4bb539f614a5

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