Fratta-Gorzone Guide Lines: Rehabilitation and renaturalization of a river in the Veneto region

摘要

The Fratta-Gorzone River is classified in the recent PTA plan as one of the most polluted rivers in the Venetonregion. Its Basin -about 1.500 sqKm- includes all the main landscape ambits catalogued by the PTRC plan (fromnthe pre-Alpes in Vicenza Province to the dune landscape of the Venice Lagoon southern part). The Frattanwaterway is 93 km long and is known as the Rio Acquetta-Togna-Fratta Gorzone/Agno-Guà-Frassine-SantanCaterina-Gorzone River System.nThis Waterway System from one part has great elements of strenght as the rich riverine historical andnlandscape heritage, and from the other part has serious weaknesses due to the tanning district pollution andnto the diffuse agricultural, urban and industrial pollution. Fratta is a medium-high hydraulic risk zone.nUntil Know all the Planning Instruments and Practices deal with the northern part of Fratta. The more recentnPlan too –the “Accordo di Programma Quadro 05/12/2005”- has as focal point the reduction of pollution (chromenand chloride mainly) and the use of traditional treatment systems (linked with some constructed wetlandnsystems).nOur Paper present the last 2009 Scenario-Plan, promoted by an anusual Group: Water Consorzio LEB withnthe Regione Veneto supervision, AATO del Chiampo, Sentinella dei Fiumi Association, Coldiretti, IUAVnUniversity and two Private Industries.