Salinisation process of Lake Sidi Boughaba, Kenitra, North Western, Morocco: A statistical approach

Journal of Water and Land Development

article

Mohamed Lachhab¹  Mohamed Najy¹  Fatima Zahra Talbi²  Aziz Taouraout¹  Mohamed El Qryefy¹  Hassan Ech-Chafay¹  Driss Belghyti¹  Khadija El Kharrim¹ 

[1] University Ibn Tofail, Faculty of Sciences, Natural Resources and Sustainable Development Laboratory;Hassan First University of Settat, Faculty of Sciences and Technologies, Laboratory of Biochemistry, Neurosciences;Sidi Mohamed Ben Abdellah University, Faculty of Sciences Dhar El Mahraz, Laboratory of Biotechnology

关键词: Kenitra;    marine aerosols;    Morocco;    salinisation;    Sidi Boughaba Lake;   

DOI  :  10.24425/jwld.2022.141572

学科分类：农业科学（综合）

来源: Instytut Technologiczno-Przyrodniczego / Institute of Technology and Life Sciences

【 摘 要 】

In order to determine the nature of the high salinisation rate of the waters of Lake Sidi Boughaba, which has been listed in the Ramsar list since 1980, 23 samples that were taken during four sampling operations were subjected to physicochemical analyses. The obtained results were processed using a combination of bi-varied methods (correlation tests) and multivariate statistical methods (principal component analysis – PCA). The physicochemical analyses reveal that they are alkaline waters with a pH ranging between 8.38 and 9.03, an electrical conductivity ( EC ) of the order of 12.4 to 17.4 mS∙cm –1 , and high levels of Na + and Cl – , up to 3700 and 6630 mg∙dm –3 respectively, indicating a marine origin of these waters. In addition, the statistical treatment revealed that the mineralisation of the waters of this ecosystem is controlled by four main mechanisms of the salinisation; the main mechanism underlying this strong mineralisation is due to the impact of the marine spray. The second-order processes are about the phenomenon of the ion exchange, the dissolution/precipitation of evaporitic and carbonate formations, the oxidation–reduction processes, notably the reduction of sulphates as well as biochemical phenomena due to the selective absorption of certain ions by fauna and flora.

【 授权许可】

Unknown