How is rainwater harvesting done from open spaces around the buildings in city areas?

Broadly rainwater can be harvested for two purposes, storing rainwater for ready use in containers above or below ground and charging into the soil for withdrawal later.


This is called ground water recharging.


Landscapes, open fields, parks, roads and pavements and other open areas can be effectively used to harvest the runoff.


The main advantage in using the ground as collecting surface is that water can be collected from a larger area.


This is particularly advantageous in areas of low rainfall.


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