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Proceedings of the International Association of Hydrological Sciences An open-access publication for refereed proceedings in hydrology

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Proc. IAHS, 373, 51-55, 2016
https://doi.org/10.5194/piahs-373-51-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
12 May 2016
Integrated management of water resources demand and supply in irrigated agriculture from plot to regional scale
Niels Schütze and Michael Wagner Institute of Hydrology and Meteorology, TU Dresden, 01279 Dresden, Germany
Abstract. Growing water scarcity in agriculture is an increasing problem in future in many regions of the world. Recent trends of weather extremes in Saxony, Germany also enhance drought risks for agricultural production. In addition, signals of longer and more intense drought conditions during the vegetation period can be found in future regional climate scenarios for Saxony. However, those climate predictions are associated with high uncertainty and therefore, e.g. stochastic methods are required to analyze the impact of changing climate patterns on future crop water requirements and water availability. For assessing irrigation as a measure to increase agricultural water security a generalized stochastic approach for a spatial distributed estimation of future irrigation water demand is proposed, which ensures safe yields and a high water productivity at the same time. The developed concept of stochastic crop water production functions (SCWPF) can serve as a central decision support tool for both, (i) a cost benefit analysis of farm irrigation modernization on a local scale and (ii) a regional water demand management using a multi-scale approach for modeling and implementation. The new approach is applied using the example of a case study in Saxony, which is dealing with the sustainable management of future irrigation water demands and its implementation.

Citation: Schütze, N. and Wagner, M.: Integrated management of water resources demand and supply in irrigated agriculture from plot to regional scale, Proc. IAHS, 373, 51-55, https://doi.org/10.5194/piahs-373-51-2016, 2016.
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Growing water scarcity in agriculture is an increasing problem and future climate predictions enhance drought risks for agricultural production. For assessing irrigation as a measure to increase agricultural water security a generalized stochastic approach for a spatial distributed estimation of future irrigation water demand is proposed, which ensures safe yields and a high water productivity at the same time.
Growing water scarcity in agriculture is an increasing problem and future climate predictions...
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