In many regions, deforestation, mismanagement of land and bad agricultural practices have supported intense soil erosion phenomena and flooding. The climage change will bring even more variability in the future and if scientists expect less rainfall, the episodes will be more intense. Extreme climate events such as storms, hurricanes might increase (IPCC, 2014) exposing futhermore the poorest to vulnerability. The consequences of such events will contribute to aggravating the situation of the poorest classes, destroying lands, fields, houses and lives, exposing them to even more fragility.
The IRHA is concerned about the continuous degradation of the catchment areas and is engaged to monitor the precipitations while rehabilitating/improving the catchment areas in order to best deal with heavy rain and run-off phenomena.
Taken action in Integrated water resources management, IRHA is at the interface of precipitations and catchment looking at adapted catchment and water management :
- Weather forecasting;
- Assessment of water resources and risk (floods, landslides, etc);
- Development of Intervention framework for catchment and water ressources management at watershed level;
- Participatory approaches and mapping (3DPM, GIS, remote sensing);
- Design of infrastructures to control run-off, erosion phenomena and soil ;
- Engineering and quality control;
- Capacity development and knowledge transfer;
- Monitoring and evaluation of the performance of the catchment;