RT info:eu-repo/semantics/article
T1 A new integrated methodology for characterizing and assessing suitable areas for viticulture: A case study in Northwest Spain
A1 Río González, Sara del
A1 Álvarez Esteban, Ramón
A1 Alonso Redondo, Raquel
A1 Hidalgo González, Cristina
A1 Penas Merino, Ángel
A2 Botanica
K1 Botánica
K1 Bioclimatic indices
K1 GIS
K1 Habitat suitability
K1 Spain
K1 Species distribution models
K1 Viticulture
K1 2417.03 Botánica General
AB [EN] In 2018, Spain was the third largest producer and the leading exporter of wine in the world. Viticulture is an important economic activity in the Castilla y León region, and is an element capable of halting the flight from the countryside and favouring demographic settlement in rural areas. A new integrated methodology for characterizing and delimitating areas suitable for vineyard cultivation is proposed here. The approach combines traditional climate indices with others used in bioclimatology and with soil variables, and applies various statistical analyses to select the predictors that best characterize the vineyards. These predictors are then integrated in species distribution models and a geographic information system. The methodology was tested in the Denomination of Origin León (hereafter DO León) in northwest Spain. Ten single models using the maximum entropy modelling algorithm were run for each of the six wine-grape varieties. Single-model projections built as a consensus of the ten models into an ensemble-forecasting approach were later used to generate maps of suitable areas for each variety.The results confirm the delimitation of the DO León as a Denomination of Origin. The bioclimatic variables Compensated Thermicity Index and Continentality Index and the soil variables pH, Clay Content, Soil Retention Capacity and Soil Saturation Humidity are defining for all the varieties studied. Garnacha and Mencía were the most different varieties in relation to their bioclimatic and soil requirements. Suitability maps revealed that the DO could be extended into neighbouring areas up to 30 km around it. The proposed methodology is a useful tool for agronomic and oenological management; it allows a more effective selection of sites for new vineyards, improves vineyard management, and can even be used to protect territories with a historical and cultural heritage of grape cultivation, thus favouring demographic settlement in rural areas and avoiding depopulation.
PB Elsevier
SN 1161-0301
LK http://hdl.handle.net/10612/14396
UL http://hdl.handle.net/10612/14396
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 25-abr-2024