Ecological flow (e-flow) is the amount of water required for the aquatic ecosystem to continue to thrive and provide the services we rely upon. It is a key element for sustainable water use in river basins along with water balances and water allocation mechanisms. In 2015, a guidance document...

A water allocation mechanism is the combination of institutions which enable water users and water uses to use, take or to receive water for beneficial use according to a recognised system of rights and priorities (Taylor, 2002). It defines who is allowed to access water, how much may be used or...

A water balance is - in simplified terms - a calculation of the water quantity available during a specific time period (such as a month or a year) in a river basin, considering water abstraction, use and consumption. This calculation can be used to maintain sufficient water levels in water...