Zone de Texte: A REVIEW ON GEOMATIC TOOLS FOR ASSESSING, INVENTORYING AND MAPPING ALIEN PLANT INVASIONS IN THE MEDITERRANEAN BASIN Zone de Texte: Alien plant distribution can be recorded with (2d-3d) coordinates of site location (vector approach), as coordinates of quadrat centroids (raster approach), as coordinates of site locations and codes of quadrat centroid (mixed-approach). The mized approach should be preferred becouse give the possibiltiy to easily convert different thematic layers ad apply more efficently smoothing or kriging functions to the distribution records. Zone de Texte: Data Collection Methods: vector vs raster Zone de Texte: Xp Yp Zone de Texte: XqiJ YqiJ Zone de Texte: XpYp XqiJ YqiJ

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