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1 Karimov, Akmal; Mavlonov, A.; Smakhtin, Vladimir; Turral, Hugh; Inna, G.. 2009. Groundwater development in Fergana Valley: the adaptation strategy for changed water management in Syrdarya basin. In Bloschl, G.; van de Giesen, N.; Muralidharan, D.; Ren, L.; Seyler, F.; Sharma, U.; Vrba, J. (Eds.). Improving integrated surface and groundwater resources management in a vulnerable and changing world: proceedings of Symposium JS.3 at the Joint Convention of the International Association of Hydrological Sciences (IAHS) and the International Association of Hydrogeologists (IAH), Hyderabad, India, 6-12 September 2009. Wallingford, UK: International Association of Hydrological Sciences (IAHS). 6p. (IAHS Publication 330)
Groundwater irrigation ; Aquifers ; Simulation models ; Groundwater recharge ; Conjunctive use ; Canals ; River basin management ; Hydrology ; Water budget / Central Asia / Fergana Valley / Syr Darya River Basin / Toktogul Reservoir / Sokh Aquifer
(Location: IWMI HQ Call no: e-copy only Record No: H042314)
(0.38 MB)
During the last decade, the competition for water between the hydropower-oriented upstream and irrigated agriculture-centred downstream in the Syrdarya River basin, Central Asia, has significantly increased. Since 1993, 2–3 km3 of winter flows from hydropower generation in the upstream have flowed annually into the saline depression of Arnasai located in the midstream. This results in much less water being available for irrigation during summer. Groundwater development modelling conducted for one of the Fergana Valley’s aquifers suggests that temporary storage of winter flows in the aquifer – “water banking” – could be an effective adaptive strategy to optimize water management in the basin. The study concludes that a shift from canal to groundwater irrigation, combined with winter-flow banking can effectively reduce the upstream–downstream pressures and ensure improved water supply for downstream water uses during summer time.
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