Potential use of alluvial groundwater for irrigation in arid zones - Mhamid Oasis (S Morocco)

• Autorzy: Dłużewski M. , Kozłowski R. , Szczucińska A.

Identyfikatory

DOI

10.1515/eces-2017-0010

Warianty tytułu

PL

Przydatność wód aluwialnych do nawadniania w obszarach suchych - Oaza Mhamid (Płd Maroko)

• Języki publikacji: EN

Abstrakty

EN

In arid zones, the availability of fresh water is usually very limited because of high salinity, which greatly limits their use for irrigation purposes. High mineralization of water used for irrigation leads to increased soil salinity. The aim of the study was to examine the potential use of alluvial groundwater for irrigation in arid zones. The works were conducted in the Middle Draa Valley in southern Morocco (the Mhamid Oasis) in October 2015. Water samples of alluvial groundwater were collected for laboratory analysis from 42 wells located in the oasis. In order to determine the possibility to use the water for irrigation purposes, the Sodium Adsorption Ratio (SAR), sodium percentage (%Na), permeability index (PI), Kelly’s ratio (KR), magnesium hazards (MH) and electrical conductivity (EC) were assessed. EC values, exceeding 3000 μS·cm-1 in all the samples, classify the water as unsuitable for irrigation. MH and the KR indexes show that 30% of water samples represent levels making them unsuitable for irrigation. SAR confirms the very high degree of susceptibility of the analyzed waters to salinity hazard. The PI index of these waters is moderate, however in terms of sodium content they can be deemed suitable for irrigation purposes. It has been found that even within a small area of the oasis, a very large differentiation in the alluvial groundwater suitability for irrigation purposes occurs.

Słowa kluczowe

EN

groundwater salinity; alluvial aquifer; irrigation; arid zones

PL

zasolenie wód gruntowych; aluwialna warstwa wodonośna; nawadnianie; strefy suche

• Wydawca: Towarzystwo Chemii i Inżynierii Ekologicznej
• Czasopismo: Ecological Chemistry and Engineering. S
• Rocznik: 2017
• Tom: Vol. 24, nr 1
• Strony: 129--140
• Opis fizyczny: Bibliogr. 31 poz., wykr., tab., rys.

Twórcy

autor

Dłużewski M.

• Department of Geomorphology, Faculty of Geography and Regional Studies, University of Warsaw, ul. Krakowskie Przedmieście 30, 00-927 Warszawa, Poland

autor

Kozłowski R.

• Department of Environmental Protection and Modelling, Faculty of Mathematics and Natural Sciences, The Jan Kochanowski University in Kielce, ul. Świętokrzyska 15, 25-406 Kielce, Poland

autor

Szczucińska A.

• Department of Hydrometry, Faculty of Geography and Geological Sciences, Adam Mickiewicz University in Poznań, ul. B. Krygowskiego 10, 61-680 Poznań, Poland

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).