Quality of water resources in Annaba plain (North East) of Algeria is facing a serious challenge due to industrialisation and excessive exploitation of water. Therefore, 29 groundwater samples were collected from this area to assess their hydrogeochemistry and suitability for irrigation purposes. The groundwater samples were analysed for distribution of chemical elements Ca2+, Mg2+, Na+, K+, HCO3−, Cl−, and SO42−. It also includes pH, electrical conductivity.The hydrochimical study has shown that the facieses are changing between a pole calcium-chloride-sulphate and sodium-chloride types. The results also showed that the salinity is the major problem with water for irrigation use (58% of samples fall into C3S1 class). As a result, the quality of the groundwater is not suitable for sustainable crop production and soil health without appropriate remediation.
In the Annaba plain (Northeast of Algeria), the anthropogenic activities have imposed serious unfavorable impacts on hydraulic, hydrochemical and biological balances that influence the socio-economic future of this area. A hydrochemical analysis was performed in 29 wells distributed over the whole of the plain region during the period of high water (December 2013) to assess the quality of groundwater for its suitability for irrigation. Several parameters were analyzed such as pH, TDS, Ca +2, Mg +2, Na+ , K+ , HCO3 - , Cl- and SO4 - . Analysis of results suggests that groundwater in the study area has the same qualities; however the observed degradation reflects a change in the water quality, and the SAR values vary from 0.08 to 16 with an average of 1.3. The US salinity laboratory, Wilcox, and percentage Na+ it suggest that the majority of groundwater samples are not good for irrigation.
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