Image

Globally, rainfed agriculture is practised on 80% of cultivated land, supplying more than 60% of the world’s food. Amid increasing variability of global rainfall patterns and more frequent droughts driven by climate change, rainwater harvesting can serve as a valuable climate adaptation and mitigation strategy, providing a sustainable alternative water source.

Rainwater harvesting refers to a range of methods for collecting and storing rainfall using water pans, tanks, reservoirs and dams to help sustain water supply during dry spells and droughts. The catchment area is the area where the rainfall or water runoff is initially captured and is in most cases either the roof-top of a house or building, ground surface or rock surface.