Integrated River Basin Management - what are the key points to success ?

Integrated River Basin Management (IRBM) is a much talked about intervetions these days? IRBM rests on the principle that naturally functioning river basin ecosystems, including accompanying wetland and groundwater systems, are the source of freshwater. What are the key elements for sucessful implementation of this method? and how best we can use this method for cleaning holly Ganga river?