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| A Water Management Software Tool for Estimating Water Requirements under Current and Climate Change Conditions |
Abdrabbo, M. A. A., Rasha El-Morshedy and Eid S. F. M.
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Abstract:
The aim of this work is to develop a software program that is capable of predicting water irrigation requirements in the field based on climatic data, soil data and crop data. The software program (called Water Management software (WMS) for different field and horticulture crops.) The software can auto update based on the inputs information such as, climate data, soil analysis and crop coefficient. The developed software can be used by researchers, farmers and irrigation system designers. In order to verify the outputs produced from the software, a field experiment data were gathered for this purpose during 2010/11 and 2011/12 for irrigation management of wheat under four irrigation levels (60, 80 , 100 and 120 % of evapotranspiration (ET). The irrigation water requirement of WM was the same like 100% of ET. The results of wheat productivity and water productivity was higher under 100% of ET than the other irrigation water treatments. Moreover, prediction of irrigation water requirement of wheat under climate change conditions (2050s) showed that the evapotranspiration under 2050s will be higher than current condition by different values ranged by 4 - 12 % under the different climate change scenarios. The highest increasing percentage of “evatpotraspration” was predicted under RCP 8.5 scenario followed by RCP 6.0 scenario while the lowest increasing percentage of ET was predicted under RCP 2.6 scenario. This paper recommended developing a new software for water management considering climate change conditions to provide accurate information for decision makers related to water status in Egypt under climate change particularly for the major strategic crops.
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