Abstract

The Egyptian government initiated a development project in 2015 to reclaim 1.5 million acres with the primary goal of increasing agricultural production. Siwa is one of these areas in the Western Desert of Egypt, with 30,000 acres using groundwater from the Nubian Sandstone Aquifer System (NSAS). This study investigates if government goals are achievable in the next 20 years to secure the food and water needs of the Siwa region. Results show that total required crop areas are 7154 and 6629 acres in winter and summer, respectively. These areas are less than 17,010 acres of available area for cultivation (Av). The estimated total water use is 40.6 million cubic meters (MCM), which is less than the 88 MCM that is considered available groundwater in the Nubian Aquifer System (NAS). Due to available capacity in Siwa, an optimization model is used to maximize crop production considering government policies. The Autoregressive Integrated Moving Average (ARIMA) model was applied to predict production costs and sell prices of cultivated crops. Analysis included different scenarios beyond government-recommended approaches to identify ways to further expand agriculture production under sustainable conditions. Results provide valuable insights to the ability to achieve government goals from the project and changes that may be required to enhance production.

Highlights

  • The Nile River is the primary source of water in Egypt, which represents 94% of all renewable water resources [1]

  • Government policies are followed to ensure the sustainability of Nubian Sandstone Aquifer System (NSAS) for future generations

  • Using stipulated well discharge rate and working hours, the maximum water available annually is 68 million cubic meters (MCM). By dividing this value by maximum crop water use of 4000 m3/acre, area for cultivation (Av) is computed as 17,010 acres, which represents 56.7% of the total area

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Summary

Introduction

The Nile River is the primary source of water in Egypt, which represents 94% of all renewable water resources [1]. Egypt is facing water scarcity where the population was 97 million and total renewable water resources was 570 m3/year/capita in 2018 [2], which is below the water scarcity level of 1000 m3/capita/year [3]. These data show that self-sufficiency values of wheat, maize, broad bean, and barley are decreasing over time, where in 2017 these values are 34.5%, 47%, 30.7%, and 86%, respectively [4]. For sustainable socioeconomic developments in Egypt, water resources management is important to protect limited water resources [5]

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