Rainwater harvesting from macro-catchments describes the utilisation of rainwater in an area apart from the rainfall area. Macro-catchment rainwater harvesting is especially beneficial to buffer water shortages in arid, semi-arid and sub-humid zones with extended dry seasons and rainfalls that vary highly over time. In most cases, the harvested water is used for agricultural purposes.

Click on the green hotspots to reveal the main components of these rainwater harvesting systems!