Environmental Assessment of Soil salinity in Gharb El-Mawhoob area- El-Dakhla Oasis: using Geographic information systems and Remote sensing

Document Type : Original Article

Abstract

This study is concerned with using environmental assessment methodology to study one of the most important environmental problems in the West Al-Mahoub region of the western Dakhla Oasis depression in Egypt's Western Desert, using geographic information system applications, remote sensing, and field work to evaluate the problem and identify the most important geographical factors causing or affecting it, and then identifying its most important results, leading to proposing the most appropriate possible solutions.
This was accomplished by estimating the change rate in the region's cultivated area exposed to salinization from 1984 to 2017, and then creating a map of the region's soil salinization risks, pinpointing the regions most vulnerable to salinization, and the places not affected by the appearance of salinization, as well as developing a preliminary vision for how to manage this phenomena in order to limit negative consequences while still protecting and preserving the environment and natural resources.
The study concluded that the most important geographical factors causing soil salinization in the region are climatic conditions and irrigation methods used, followed by the absence and deterioration of agricultural drains, irrigation water, and topographic characteristics as the least influential factors. During the research period (1984-2017), and until the most appropriate practical methods to address this problem and accomplish the best environmental management for it are to lower irrigation water quantities, treat the soil, and regulate agricultural practices that create a rise in soil salinization.

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Journal of Qena Faculty of Arts
Volume 31, Issue 57
October (Social Sciences)
October 2022
Pages 775-836

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