| Climate Change And Groundwater Resources In The Egyptian Western Desert Oases: Case Study El-Farfra Oasis |
| Paper ID : 1182-ICRSSSA |
| Authors |
|
Hanaa Ahmed Meghaed Ahmed * National Authority for Remote Sensing and Space Sciences |
| Abstract |
| This study assessed the impacts of land use and climatic changes on groundwater quality in El- Farafra Oasis in the Western Desert in Egypt from 2000 to now. To achieve the in-tended goal, about 173 groundwater samples) 75 samples from drilled wells in 2000, 65 new samples in 2010 and 33 samples from newly drilled- wells in 2022) in different loca-tions were used in this work and detect the chemical parameters of water from wells in the study area (bicarbonate (HCO3−), sulfate (SO42-), Total Dissolved Solids (TDS), Sodium Absorption Ratio (SAR) and Electrical Conductivity (EC). Then, indicate the trend of water quality from 2000 to now using three methods including interpolation in the ArcGIS soft-ware, Wilcox and Schoeller Diagram in Aq.QA software and Ground Water Quality Index (GWQI). The results showed that barren area in 2000, 2010 and 2022 was 371.7, 362 and 343.2 Km2, respectively, which shows a significant reduction of 6.2%, during this study period. On the other hand, the area of farmlands and human-made constructions has in-creased by 1.8%. As the climatic condition increases from 2000 to 2022, these changes could extend to the water quality in shallow aquifers with increasing evaporation. This study additionally revealed that although there was a decreasing trend in the rate of rainfall and the agricultural lands have increased, the quality of water was still suitable for drinking and agriculture consumption. It is clear, that realizing the spatiotemporal variation of land use and climate change would help in groundwater resource management. |
| Keywords |
| groundwater quality, climate change, land use, Western Desert, El-Farfra Oasis, Egypt |
| Status: Accepted (Poster Presentation) |
