Overview
Pianton river (Venice)
- Case study
- CS8
- Type
- Rural
- Bio-region
- Continental
- Hazards addressed
- 4
- Avg. impact
Riverbank Landslides
Figure 1 shows the drainage basin of the Lagoon of Venice (Veneto region). The area highlighted in red corresponds to the area of competence of CBAR. It spans over more than 100.000 hectares (approximately 50% of the entire Lagoon of Venice drainage basin) and the total length of the river network is 2.350 km.
Managing and maintaining such a system is a complex task. Climate change is exacerbating the impacts of natural phenomena such as floods determined by extreme events and droughts.
River bank landslides is an issue that can also be aggravated by climate change.
Moreover, biodiversity loss is also a priority in the Veneto region.
Maintenance is therefore a "must", but there's an important need to operate adopting a sustainable approach, in order to get rid of vicious circles.
The Main Goal of the Case Study is to implement natural river restoration and maintenance techniques as an alternative to conventional ones. These are expected to also support positive ecological impacts besides enhancing an adaptive water management approach.
Two NBS are assessed:
NBS1: It consists of maintaining a strip with uncut herbaceous vegetation at the base of the banks when operating the maintenance of watercourses
NBS2: The main feature of the solution consists in modifying the shape of the banks along stretches that were subject to landslides. Therefore, the interventions consist firstly in the reduction of the bank's slope and secondly in vegetating the banks through transplanting of local shrubs and tree species