Research Article

Irrigation Water Quality Evaluation of Al-Hassa Springs and its Predictive Effects on Soil Properties

The chemical composition of spring waters of Al-Hassa oasis, their water quality classification, its predictive effects on soil properties were determined and some potential management practices were suggested for maximizing its use without serious soil degradation and loss of soil productivity. The ranges for different water quality parameters were: EC (2.90-4.24 dS m ^-1), SAR (4.44-6.90), adj.SAR (9.76-16.56), ajd.R_Na (5.00-8.07). The ratios calculated among different cations and anions ranged between 1.35-5.54 (Ca/Mg) and 1.88-4.33 (Cl/SO₄). The spring waters were higher in Ca⁺² and Cl^- contents than the corresponding Mg⁺² and SO₄^- ions. A positive correlation was found among different water quality parameters such as EC, SAR, ajd.SAR and adj.R_Na. The salinity and sodicity hazards of spring waters are classified as C₄S₂ i.e. very high salinity with medium sodicity problems. A leaching fraction of 15-20 % is recommended providing certain management practices such as provision of adequate drainage, proper crop selection, suitable seeding practices and improved irrigation systems are adopted to minimize the harmful effects expected from the use of these waters under the prevailing agro-climatic and plant growth conditions.

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Ibrahim A. Al-Hawas, 2002. Irrigation Water Quality Evaluation of Al-Hassa Springs and its Predictive Effects on Soil Properties. Pakistan Journal of Biological Sciences, 5: 651-655.

DOI: 10.3923/pjbs.2002.651.655

URL: https://scialert.net/abstract/?doi=pjbs.2002.651.655

Pakistan Journal of Biological Sciences

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Ibrahim A. Al-Hawas

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Research Article

Irrigation Water Quality Evaluation of Al-Hassa Springs and its Predictive Effects on Soil Properties

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