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| Titel |
Agricultural-to-hydropower water transfers: sharing water and benefits in hydropower-irrigation systems |
| VerfasserIn |
A. Tilmant, Q. Goor, D. Pinte |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 13, no. 7 ; Nr. 13, no. 7 (2009-07-09), S.1091-1101 |
| Datensatznummer |
250011932
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| Publikation (Nr.) |
 copernicus.org/hess-13-1091-2009.pdf |
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| Zusammenfassung |
| This paper presents a methodology to assess agricultural-to-hydropower water
transfers in water resources systems where irrigation crop production and
hydropower generation are the main economic activities. In many countries,
water for crop irrigation is often considered as a static asset: irrigation
water is usually allocated by a system of limited annual rights to use a
prescribed volume of water, which remains to a large extent independent of
the availability of water in the basin. The opportunity cost (forgone
benefits) of this static management approach may be important in river basins
where large irrigation areas are present in the upstream reaches.
Continuously adjusting allocation decisions based on the hydrologic status of
the system will lead to the temporary reallocation of some (or all) of the
irrigation water downstream to consumptive and/or non-consumptive users. Such
a dynamic allocation process will increase the social benefits if the sum of
the downstream productivities exceeds those of the upstream farmers whose
entitlements are curtailed. However, this process will be socially acceptable
if upstream farmers are compensated for increasing the availability of water
downstream. This paper also presents a methodology to derive the individual
contribution of downstream non-consumptive users, i.e. hydropower plants, to
the financial compensation of upstream farmers. This dynamic management
approach is illustrated with a cascade of multipurpose reservoirs in the
Euphrates river basin. The analysis of simulation results reveals that, on
average, the annual benefits obtained with the dynamic allocation process are
6% higher that those derived from a static allocation. |
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