Studio per la valutazione di incidenza ai sensi della Dir. 92/43/CEE e della L.P. 10/2004 di un piano integrato di viabilità forestale elaborato per i versanti anauni del Parco

European Directive 92/43/EEC (The Habitats Directive) requires competent authorities to carry out an Appropriate Assessment (AA) of plans and projects that, either alone or in combination with other plans and projects, are likely to have a significant effect on European designated sites. This report deals with one of the first examples of AA, applied to an integrated forest road plan in a northern-Italian natural Park. On a GIS base, implemented with existing databases and field original data, we evaluated the risk connected to the planned forest roads routes with the formula (R = V * p * D), where R is risk, V is vulnerability, p is danger (exposure), D is the value of the biotic component (wildlife, vegetation and plant species). Based on the results we identified the routes which should be removed from the plan to prevent likely significantly negative effects.