ASSESSMENT OF GROUNDWATER QUALITY FOR IRRIGATION PURPOSE USING IRRIGATION WATER QUALITY INDEX (IWQI)

Author:

Al-Aizari Hefdhallah S.1,Aslaou Fatima2,Mohsen Osan3,Al-Aizari Ali R.4,Al-Odayni Abdel-Basit5,Abduh Naaser A. Y.6,Al-Aizari Abdul-Jaleel M.6,Abo Taleb Eman7

Affiliation:

1. Laboratory of Organic Chemistry, Catalysis and Environmental, Department of Chemistry, Faculty of Science, Ibn Tofail University, 14000 Kenitra, Morocco

2. Research Team on Health and Nutrition of Mother and Child, Faculty of Medicine and Pharmacy, Mohammed V University, 10500 Rabat, Morocco

3. Laboratory of Geosciences, Department of Geology, Faculty of Sciences Kenitra, Ibn Tofail University, 14000 Kenitra, Morocco

4. Institute of Surface-Earth System Science, School of Earth System, Tianjin University, 300072 Tianjin, China

5. Department of Restorative Dental Science, College of Dentistry, King Saud University, P.O. Box 60169, 11545 Riyadh, Saudi Arabia

6. Department of Chemistry, College of Science, King Saud University, 11451 Riyadh, Saudi Arabia

7. Institute of Vision Research Center, Sorbonne University, 75012 Paris, France

Abstract

Groundwater represents an important natural resource for sustaining life. This study was conducted to evaluate groundwater in the Doukkala region in Morocco, using the Irrigation Water Quality Index (IWQI) and uses Inverse Distance Weighting (IDW) in GIS was to show the spatial distribution of water quality parameters. It collected 97 of samples from groundwater and were estimated the sodium concentration (Na%), and sodium absorption rate (SAR), Also, Residual sodium carbonate (RSC), Kelly index (KI), magnesium content (MR), salinity potential (PS), and permeability index (PI). According to the distribution map of the Irrigation Water Quality Index (IWQI) for the study area, about 22.7% of samples fall into the severe restriction (SR) category, which can be used to irrigate plants with high salinity tolerance, 34.02 of samples fall under the high restriction (HR) category, 23.7% of samples fall into the moderate restrictions (MR) category, 17.52% of samples fall under the low restriction (LR) category, and 2.06% of samples fall under the no restriction (NR) category. The results of (IWQI) indicated that the groundwater quality in the study area is mostly suitable for irrigation purposes.

Publisher

Vilnius Gediminas Technical University

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