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首页> 外文期刊>American journal of applied sciences >Hydrochemical Differentiation of Salinisation Process of the Water in Endoreic Semi-Arid Basin: Case of Rémila Basin, Algeria | Science Publications
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Hydrochemical Differentiation of Salinisation Process of the Water in Endoreic Semi-Arid Basin: Case of Rémila Basin, Algeria | Science Publications

机译：内陆半干旱盆地水盐化过程的水化学差异：以阿尔及利亚里米拉盆地为例|科学出版物

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> The aim of this study is to determine and treat a hierarchical basis of the various mechanisms responsible for the space variation of the water quality in a endoreic semi-arid basin. The water chemistry showed a large variability in space and time. The total dissolved solid (TDS) in water increases from upstream to downstream due to the effect of the arid climate, but also due to the water-rock interactions and the anthropic polution of surface water. The water chemistry changes progressively from bicarbonate calcic upstream to sulphated and chlorinated calcic in the median zone to chlorinate sodic in the Sebkha. Thermodynamic modelling showed the major role of evaporation in the evolution of the water chemistry. The result indicated calcite precipitation then gypsum precipitation as well as cations exchanges reactions. Statistical approach allowed to arrange processes that responsible for the hydrochemical variability according to their important. The increase of water salinity is due mainly to the aridity process. The differentiation between salty surface water (Sebkha) and deeper water (Chott) is the second process. The combined of the geochemical and statistical methods allowed to identify the main
机译： >这项研究的目的是确定和处理内陆半干旱盆地水质空间变化的各种机制的层次基础。水化学显示出时空变化很大。由于干旱气候的影响，而且由于水岩相互作用和地表水的人为污染，水中的总溶解固体（TDS）从上游到下游增加。水的化学性质从上游的碳酸氢钙逐渐变为中部区域的硫酸钙和氯化钙，再到Sebkha中的苏打氯化钠。热力学模型显示了蒸发在水化学演化中的主要作用。结果表明方解石沉淀然后是石膏沉淀以及阳离子交换反应。统计方法允许根据其重要性来安排负责水化学变异性的过程。水盐度的增加主要是由于干旱过程。第二步是区分咸的地表水（Sebkha）和深层的水（Chott）。地球化学和统计方法相结合，可以确定主要

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