Estimating generalized of global impacts to water quality on soil characteristics in basin of the Great Sebkha of Oran

Abstract

In basin of the Great Sebkha of Oran, water deficit linked to climate semi-aridity has forced farmers to resort to the use of underground water of poor quality, which considered as the major cause of soil degradation. The alluvial aquifer waters are particularly characterized by higher relatively concentration in dissolved salts when compared them with other aquifers of the same system. Generally, the salinity of the water increases from upstream to downstream in the direction of the Sebkha (Boualla et al. in Water Supply 17(6):1801-1812, 2017). Assessment of soil quality has become the basic work for agricultural sustainable development. The aim of this paper is to evaluate soil properties in great Sebkha of Oran basin. Georeferred soil samples were collected from ten-component analysis, and different soils were analysed for different physical and chemical attributes. Our study focuses on mineralogical analysis and geochemical prospecting using soil chemical data. Eleven indicators were selected to constitute data to assess the soil quality: sieve analysis, classification, cation exchange capacity, pH, soil organic matter, conductivity, gypsum, nature of the oxide content, nutrients (NO 3-N, NH 4-N, PO 4-P), anions content (SO 4 2− , Cl −) and mineralogical analysis. Conclusively, process and mechanism of soil quality need deep research.

Diachronic study of the great Sebkha of Oran (western Algeria) based on SAR radar images (1992–2011)

“…Mapping of the main groups of plants in the Sebkha Basin was accomplished [19]. The geochemical analysis of the water exploration environment, the interaction of water and soil in the saline-alkali environment, and the general estimation of the global impact of water quality on soil properties have been performed [20][21][22]. Following many inquiries, especially concerning the expansion of Sebkha and its role in the ecological balance of the region, the study of its evolution has become essential.…”

The assessment of the physicochemical quality of water intended for irrigation of Oued Méskiana (Oum El Bouaghi) Algeria

“…For a few decades, the protection and the conservation of the natural environments have become a major concern and a main aim in the development programs [1]. Today with the climatic conditions of the arid and semi-arid areas, water became an undisputable issue, so the establishment of a balance between the increasing water demand and the availability of the water resources remains a big challenge.…”

“…Under these conditions, the study of the physio-chemical and ecological properties of the soil when they exceed the tolerable content in nature or the indicative values with which each country was equipped. The development of the irrigation is accompanied in the majority of cases by the appearance of salinization and degradation of soil structure and the loss of permeability, what generates the asphyxiation of the plants in different degrees [1], [7]. Therefore, the main purpose of the present study was to evaluate the impact of waste water discharge in the downstream of the studied river on the physic-chemical quality and salinity of soil.…”