Options for regional water savings and reallocation
2002
van der Krogt, W.N.M. | Verhaeghe, R.J.
Water savings at the micro level, constituting a reduction in evaporation and percolation losses and/or an improved matching of water supply and demand, are only effective if the savings at one place and time can be reallocated at a different time and/or different place to a different user. The regional configuration of the water resources system and the way it is managed strongly determine the possibilities for reallocation and thus the overall effectiveness of water savings. An overview is presented of different water supply systems and the role of operational management in the potential to save and effectively reallocate water. The concepts are further illustrated with simulations for the complex Citarum River basin (Indonesia). The tests for this basin demonstrate that savings in irrigation water supply through demand management and operational management are very promising for systems with a large irrigation component. Such measures can strongly contribute to an effective use of scarce water resources.
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