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A Methodology for evaluating the temporal stability of spatial patterns of vineyard variation

Gambella, Filippo and Dau, Riccardo and Paschino, Francesco and Castrignanò, Annamaria and De Benedetto, Daniela (2011) A Methodology for evaluating the temporal stability of spatial patterns of vineyard variation. In: Spatial Data Methods for Environmental and Ecological processes: 2. ed., 1-2 September 2011, Foggia, Italy. [S.l.], CDP Service. in press. Conference or Workshop Item.

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Vineyards vary substantially in the quantity and quality of grapes they produce. The study was undertaken in a commercial “Semidano” vineyard block (0.6 ha) in the municipality of Mogoro (Sardinia isle, Italy) during the vintages of 2008, 2009 and 2010. A total of 106 plants were sampled and georeferenced. To assess the joint spatial and temporal variation of the vine properties, a multivariate geostatistics technique was applied, called factor cokriging, which aims at decomposing the overall variance in a restricted number of regionalised scale-dependent factors. The thematic maps of the vineyard properties and the ones of the factors show a large variability on both space and time. All the measurements of spatial agreement reveal a lack of temporal stability of the variation patterns over the years.

Item Type:Conference or Workshop Item (Contribute)
ID Code:7863
Status:In Press
Uncontrolled Keywords:Precision viticulture, geostatistical analysis, temporal stability
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/09 Meccanica agraria
Divisions:001 Università di Sassari > 01 Dipartimenti > Ingegneria del territorio
Publisher:CDP Service
Deposited On:27 Jul 2012 13:15

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