In forested mountain landscapes wood can significantly increment the total flow volume during a flooding event. The presence of large wood on river sides has positive effects on hydrogeomorphological diversity of habitats and represents a source of organic nutrients in the water. Therefore a compromise should be reached in the management of vegetation (within river corridors and on connected unstable slopes) aiming to reduce flood hazard while preserving its function of large wood supply for river ecosystems. The idea of the project is to develop in gvSIG a model for the evaluation of the hazard derived from large wood transportation during flooding events. The simplified GIS model should consider:
- the effective presence and characteristics of the vegetation in the inundable river corridors for the log requirement
- the characteristics of the flow in the stream network for the transportation of the logs downstream. With this model the user will be able to make an analysis of the hazard and risk related to the transport of wood during flooding events on a complete river stream with known and commonly used/available GIS data, using directly in a GIS for displaying input and outputs.