LuisPerezPredicted_Performance_of_an_Irrigation_Network_in_Spain_under_Climate_Change[1].pdf (72.73 kB)
Predicted performance of an irrigation network in Spain under climate change
conference contribution
posted on 2010-07-02, 15:10 authored by Ian Smout, Luis Perez UrrestarazuThis paper applies a methodology for investigating the performance of irrigation
networks under climate change to the Fuente Palmera irrigation district, in Cordoba,
southern Spain, which supplies water on-demand for drip irrigation. Climate
variables are predicted for 2050 and 2080 under two emission scenarios and
European agricultural policy scenarios are used to predict future cropping patterns.
Irrigation water requirements are then estimated for various combinations of these
climate and cropping pattern scenarios, and the equity and adequacy of pressure at
the outlets are estimated using EPANET, as performance indicators for the irrigation
network.
The results show that because of the projected change in climatic conditions in the
Cordoba region, the irrigation requirements will be higher in 2050 and 2080, leading
to increased maximum flow requirements at the pumping station and at the outlet. As
a result, many networks in the region will be overloaded and improvements in the
infrastructure will be required to cope with this higher demand. This general
conclusion is valid for various climatic scenarios and projected cropping patterns and
the selected emissions scenario has little impact either in terms of water requirements
or network performance.
In the case of Fuente Palmera irrigation district which is examined in the paper, both
water consumption and energy consumption would increase. However this system
would still work properly in these conditions because it was designed for sprinkler
irrigation so the pumping capacity is very high.
Changes in cropping pattern were found to have a high impact on network
performance, even higher than the impact of climate change. Therefore, the predicted
increase in network requirements due to climate change can be reduced by using an
appropriate cropping pattern, adjusting crop water requirements during the year and
avoiding the concentration of the water demand in a peak period. Appropriate
selection of crops and the adaptation of varieties to new climate conditions could be
the key factors to prevent overload of network capacity.
History
School
- Architecture, Building and Civil Engineering
Research Unit
- Water, Engineering and Development Centre (WEDC)
Citation
SMOUT, I.K. and PEREZ URRESTARAZU, L., 2010. Predicted performance of an irrigation network in Spain under climate change. 3rd International Perspective on Current & Future State of Water Resources & the Environment, EWRI-ASCE, Chennai, 5-7 January 2010.Publisher
EWRI-ASCEVersion
- NA (Not Applicable or Unknown)
Publication date
2010Notes
This is a conference paper. Further details of this conference can be found at: http://content.asce.org/conferences/india2010/index.htmlLanguage
- en
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