Doc Venezia
The DOC Venezia includes all the territory of the Piave and almost all Lison Pramaggiore, thus extending to the provinces of Venice and Treviso, from the hills of Conegliano to the lagoon of Caorle. The origin of the soils of the eastern Veneto plains is due to the deposition of alluvial materials derived mainly from the melting of alpine and pre-alpine glaciers, and then by the action of the Piave and the Livenza. The plains can be easily split into two parts, the high and low plains with a separation line given by the springs. In the first, the soils are characterized by the presence of gravel conoids of fluvioglacial and fluvial origin, where the subsoil is entirely made up of gravel. Heading south, the gravel slowly leaves place to deposits with increasing percentages of sand up to the springs, where the texture becomes finer for the presence of silts and clays.
From this sharp division line begin the low plains, characterized by finer and finer soils, up to high percentages of clay, accompanied by the high presence of carbonates, in the areas further south. On these surfaces can be recognized humps, modal plains, and depressions where deep calcic formations (so-called caranto) prevail, as well as the presence of a fine texture that goes from silt (in the modal plain) to clay (in the depressions). This system affects the lower plains of the province of Treviso, with ramifications that reach throughout the area of ​Lison-Pramaggiore (Prov. of Venice). The soil is homogeneous, with de-carbonates on the surface and the presence of caranto in depth, the texture is silt/clay or simply clay, with a tendency to crack during the summer season. The subtle textural constitution is given by the reduction of the carrying capacity of the rivers as they move away from the alpine and pre-alpine area, this allows the deposition of finer and finer sediments up to the silt and clay. These soils alternate with the most recent ones, when the richness in carbonate is higher at similar textures.