Alfredo Silva
Director of Technical Services
Port and Douro Wines Institute (IVDP)
Portugal

Biography
Alfredo Silva is the Director of Technical Services of IVDP. He is Agricultural Engineering and his mission is the control and inspection of the wines of Porto and Douro. During the last years he managed some developments of IVDP to optimize the delivery of legal procedures to ensure the quality of the wines of Porto and Douro.

Abstract
Integrated approach of geomorphology and GIS mapping to the evaluation of Port winevineyards

Co-Authors: Antonio Canha, Jose Teixeira e Fernando Martins, Port and Douro Wines Institute

The Douro Demarcated Regionwas the first demarcated and regulated winemaking region created in the world, on 10 September of 1756,and is located in the inner Northern Portugal. In this region is produced the port wine, one of the most famous Portuguese products. The Port and Douro Wines Institute (IVDP) is an interprofessional public institute with the main purposes of regulate the entire production process, to control the quality of port wine, and to protect its denomination of origin both in Portugal and abroad. To achieve these goals, IVDP performs a number of functions related to the regulation of both the quality and quantity of port wine produced and traded.One of its most important functionsis the responsibility for verifying the suitability of vineyards for port wine production. The method used to classify each vineyard was applied for the first time in 1947 and is unique in entire world.Itconsists in selecting the vineyard according to quality criteria based on a scoring method that takes in accounttwelve factors that influence the grape quality. The sum of the points allows the classification of vineyards into quality categories from A (best quality) to I (worst quality).

With the rapid increase of computer power and the advent of GeographicInformation System (GIS), in 2008 IVDP started to usethese new techniques, where the vineyard parcels are georeferenced with a high-accuracy GIS data collection system (GPS). In a second moment, this data were added to a geo-database specifically created for this effect,named GeoPortal – SivRDD, which include a vineyard evaluation mainly focused on information obtained by the scoring method above mentioned. This geo-database also enabled the grape growers to identify their vineyards in aerial photos, which facilitated the IVDP attendance service.After 2013, IVDP started to developa model to integrate the data in GeoPortalover a digital terrain model.This model allowed for theautomaticacquisition ofgeomorphologic elements,namely,localization, altitude, exposition, and inclination. The connection of these with the georeferencedataof theareas provided a simple and efficient way to automatically classify the vineyards. Since 2014, it is possible to the grape growers update the data from their vineyards through IVDP website in their owner portal area.

This methodology was developedto increasethe accuracy of the process of vineyards classification and to provide guidelines for decision making in the scope of vineyard classification and management with respect to port wine production in an equitable, sustainable and ethical manner.