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Winter Potato Water Footprint Response to Climate Change in Egypt
Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, Giza 12613, Egypt.ORCID iD: 0000-0003-2726-384X
Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, Giza 12613, Egypt.ORCID iD: 0000-0002-8799-8031
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-6790-2653
Irrigation and Drainage Department, Agricultural Engineering Research Institute, Giza 12613, Egypt.
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2022 (English)In: Atmosphere, ISSN 2073-4433, E-ISSN 2073-4433, Vol. 13, no 7, article id 1052Article in journal (Refereed) Published
Abstract [en]

The limited amount of freshwater is the most important challenge facing Egypt due to increasing population and climate change. The objective of this study was to investigate how climatic change affects the winter potato water footprint at the Nile Delta covering 10 governorates from 1990 to 2016. Winter potato evapotranspiration (ETC) was calculated based on daily climate variables of minimum temperature, maximum temperature, wind speed and relative humidity during the growing season (October–February). The Mann–Kendall test was applied to determine the trend of climatic variables, crop evapotranspiration and water footprint. The results showed that the highest precipitation values were registered in the northwest governorates (Alexandria followed by Kafr El-Sheikh). The potato water footprint decreased from 170 m3 ton−1 in 1990 to 120 m3 ton−1 in 2016. The blue-water footprint contributed more than 75% of the total; the remainder came from the green-water footprint. The findings from this research can help government and policy makers better understand the impact of climate change on potato crop yield and to enhance sustainable water management in Egypt’s major crop-producing regions to alleviate water scarcity.

Place, publisher, year, edition, pages
MDPI, 2022. Vol. 13, no 7, article id 1052
Keywords [en]
climate change, potato yield, food security, water footprint, water resources management
National Category
Water Engineering Ecology Other Environmental Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-92043DOI: 10.3390/atmos13071052ISI: 000833397800001Scopus ID: 2-s2.0-85133514804OAI: oai:DiVA.org:ltu-92043DiVA, id: diva2:1679622
Note

Validerad;2022;Nivå 2;2022-07-01 (joosat);

Available from: 2022-07-01 Created: 2022-07-01 Last updated: 2023-09-05Bibliographically approved

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Al-Ansari, Nadhir

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