Environmental flow is the term for the amount of water needed in a watercourse to maintain healthy, natural ecosystems. It is used in the context of rivers which have been dammed, with most or all of the flow trapped by the dam - the failure to provide an environmental flow can have serious ecological consequences. A waterway is any navigable body of water. ...
According to the Global Environmental Flows Network,
Only a few countries, such as Australia, South Africa, and the UK have integrated the concept into water management.[1]
Footnotes and references
^Environmental Flows Newsletter, Vol. 3 Issue 1, September 2006, ([1] - the Global Environmental Flows Network