SMALL RIVERS AND LANDSCAPE NBS to mitigate flood risk

The aim of this paper is to mitigate hydrogeological risk, closely bound to climate change, through the forecast of green and blue infrastructures, basing the solutions mainly on nature-based solutions (NBS). A further aim is to restore the ecosystems of the landscapes and to allow the provision of various benefits to societies.
The novelty of the paper is the application of a method that measures improvements from the point of view of flood mitigations by means of devices that, at the same time, decrease the hydraulic hazard and increase the urban endowments of settlements. Indeed, there is a new way of avoiding flooding involving nature as part of the solution as well as allowing for the provision of benefits to societies.
A methodological analysis of the cases studied was carried out in order to achieve an actual diagnosis regarding the flooding risk of these landscapes so as to identify possible areas of intervention.
The case-studies in Argentina and Italy are two small settlements that, although located in such distant and diverse places, have similarities in flood phenomena and in the relationship between urban fabric and waterway.
In order to mitigate hydrogeological risk, through the provision of green and blue infrastructures, mainly through NBSs, a methodological tool to identify a range of possible interventions capable of mitigating the risk through territorial and urban planning of suitable “green and blue infrastructures” (GBIs) applying different NBSs has been developed.