تقييم جودة وصلاحية مياه بعض الآبار الجوفية  في منطقة المشروع و النخيل- الكفرة جنوب شرق ليبيا

جمال سعيد درياق; حمزة إسماعيل الأزرق

doi:10.58916/jhas.v10i2.742

Authors

Jamal Saeed Deryag Department of Soil and Water, Faculty of Agriculture, Omar Al-Mukhtar University, Al-Bayda, Libya Author
Hamza .I.Al-Azraq Department of Soil and Water, Faculty of Agriculture, Omar Al-Mukhtar University, Al-Bayda, Libya Author

DOI:

https://doi.org/10.58916/jhas.v10i2.742

Keywords:

Groundwater, groundwater wells, chemical properties of water

Abstract

Kufra is located in south eastern Libya, comprising an area of 850 km long from south to north (20 – 27°50’ N) and some 500 km wide (18 – 25o E), lying at approximately 450 m above sea level. Abstract .This investigation has been conducted to assess the suitability of ground water in El-Mashroug and El-Nakhil regions in El-Kufra state- south east of Libya, for irrigation purposes. To achieve this objective, water samples from twenty wells were collected. This water wells samples were analyzed for water quality criteria namely "EC, TDS, pH, soluble cations & anions, NO₃ and boron. An additional assessment of usability of irrigation water was also used included determining "SAR, SSP, RSC, Mg hazard, TH, pHc. Based on the results of chemical analysis of water wells samples, could be concluded that, the ECiw of water well samples ranged from "0.37- 1.83" dS/m, the pH values ranged from "6.4- 6.9". Also the results revealed that, cation content in the studied water well samples followed the sequence "Na⁺< Ca⁺²< Mg⁺²< K⁺" and on the other hand, the anion content followed the sequence "Cl^-< HCO₃^-< SO₄^-2". The results showed that, Both SAR and RSC values indicated no liability for sodicity hazard. Majority of water wells samples fall within "C₂-S₁ and C₃S₁ classified for El-Mashroug and El-Nakhin water wells respectively, that indicated the water wells samples had low and moderate salinity levels and low sodicity. And it could be successfully used for irrigation with special salinity control management, So, it is suitable for plants and soils.

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