GIS-Based Modelling for the Riparia/Vinea Ratio: from Portus Gaditanus to Nabrissa Veneria. (original) (raw)

Models are idealized representations of our assumptions. Here we deal with a Roman agrarian context in a specific delineated geographical area. However, the re-creation of rural settlement is secondary to the analysis of an agrarian formula, which is our principal goal. Focus on this modelling enables us to study the possibilities of the implantation of a Roman vine training system (the uinea iugata), dealing with the ideal self-sufficiency and the limitations in a simulated historical context. The starting point is a ratio given by Columella in order to supply osier-willow and reeds for the iuga in the vineyards, as bindings and cross-rails . Other training systems could be adopted as well as other species, but advantages in productivity and the suitability of raw materials were related to this ratio. The main motivation would come from the viticulture itself as a lucrative activity. The Punic tradition of vineyard without supports would be opposite to the Italian influence in the training of vines, a cultural difference attested by Varro and Columella . Actually, Columella’s De Re Rustica and our study area are related. Columella was from Gades, a city with a remarkable Punic background but well integrated into the Roman world, as evidenced by its municipality. On the other hand, Italian migration is possibly linked to the promotion of the neighbouring city of Hasta Regia as a Roman colony. Columella’s work compiles data from several previous agronomists, from different periods and provenances. For example, the ratio riparia/uinea was taken from Iulius Aticus’ work. In that sense, it is convenient to research which parts of his general schemes could have been effectively performed in a specific Roman region or other. On this occasion, we have expanded the geographical framework from preceding issues , from the original 73 archaeological sites to the current 225 sites. The goal is to improve the comparative analysis of Roman sites and zones with new different geographical and civic contexts.