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Proceedings of the International Academy of Ecology and Environmental Sciences, 2021, 11(4): 188-206
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Article

Evaluation of water quality and risk of water level declines in semi arid wetland: case of study in the Macta marshes, Algeria

Fakhr Eddine Tahar Lakhdari1, Zahira Souidi2, Khatir Benhanifia2,3, Souad Mouassa2
1Department of Ecology and Environment, Faculty of Natural and Life Sciences, Earth and Universe, University of Abou-Bekr Belkaid Tlemcen, Algeria
2LRSBG Laboratory, University of Mascara, Algeria
3Space Techniques Center, Arzew, Algeria

Received 5 June 2021;Accepted 15 July 2021;Published 1 December 2021
IAEES

Abstract
The main objective of this research is to diagnose the environment of the Macta marshes located in Northwestern Algeria by taking into account their wealth and ecological functioning as a site of importance for Mediterranean biodiversity. This study is aimed in particular at managers of remarkable sites and those interested in the protection of the environment in Algeria. The methodology adopted is based on a spatiotemporal analysis of climatic and hydrologic data as well as on physicochemical analyses of surface water The results obtained demonstrate a long-term risk of the marshes desiccation and pollution by a concentration of high nitrates and phosphates, and high dissolved oxygen levels that induce eutrophication, as well as higher BOD5 values that indicate a high organic load. The follow-up of the organic pollution index "OPI" shows that the water of the Macta marshes is heavily polluted due to untreated domestic and industrial wastewater discharges as well as the intensive use of fertilizers which threaten the different habitats and the ecological functioning of this ecosystem.

Keywords climate change;pollution;water;eutrophication;the Macta marshes.


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