Abstract

The differences between the oasis region and the regions of the Nile delta and Nile valley in Egypt are due mainly to the regions’ access to water. The oasis region depends on underground water, while the other regions rely on the Nile River. Numerous studies on cultivation in the Nile delta have been accumulated. However, few studies have addressed cultivation in the oasis region. This study examines cultivation throughout the government and local well districts using meteorological and satellite data from 2001 to 2010, and the interview in Rashda Village, Dakhla Oasis. Since the reference evapotranspiration (ET0) is lower in winter than in summer, cultivation in winter makes sense from the viewpoint of saving irrigation water. Evapotranspiration is highest in the order of date palm, rice paddy, winter wheat, and clover hay under sufficient wet conditions in Rashda Village. Cultivation features and water requirements were examined using the Normalized Difference Vegetation Index (NDVI) and Normalized Difference Water Index (NDWI). Results indicated a distinct difference in cultivation systems between the summer and winter seasons in the government well district. Water requirements for date palm in the local well district were 2.6 times those for winter plants in the government well district, using the accumulated NDWI value.

Highlights

  • Agriculture in Egypt is strongly correlated to distance from the Nile River [1]

  • We focus on cultivation features throughout the government and local well districts using meteorological and satellite data from 2001 to 2010, and the interview in Rashda Village, Dakhla Oasis

  • It should be noted that this evapotranspiration was calculated assuming sufficient wet conditions; actual evapotranspiration will be less than these values

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Summary

Introduction

Agriculture in Egypt is strongly correlated to distance from the Nile River [1]. Figure 1 illustrates the distribution. (2015) Cultivation Features Using Meteorological and Satellite Data from 2001 to 2010 in Dakhla Oasis, Egypt. Some vegetation is found in the desert area far from the Nile River, the NDVI there is little compared to that of the delta area. These oasis areas have been developed from time immemorial. Cultivation in these oasis areas depends on fossil water (artesian ground water) originating from the Nubian aquifer [2]. We focus on cultivation features throughout the government and local well districts using meteorological and satellite data from 2001 to 2010, and the interview in Rashda Village, Dakhla Oasis

Study Site and Analysis Methods
Results and Discussion
ET0 and Crop Evapotranspiration Using Meteorological Data
Seasonal Variation of NDVI for Government and Local Well Districts
Seasonal Variation of NDWI for Government and Local Well Districts
Conclusions
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