控制地中海湿地生态系统灌用地表水质的水地化学过程,阿尔及利亚东北部
Faouzi Zahi1, Abdelmalek Drouiche2, Fethi Medjani3
1Laboratory of Geological Engineering, Faculty of Natural and Life Sciences, University of Jijel, 18000, Jijel, Algeria.
Environmental monitoring and assessment
|September 2, 2024
概括
费扎拉湖流域的盐度影响了灌的适用性. 地化学分析揭示了水类型,并确定了蒸发和气候变化作为关键因素,其中36%的支流水不适合灌.
科学领域:
- 地质化学 地质化学
- 水文地质学 水文地质学
- 环境科学 环境科学
背景情况:
- 自2002年以来,Fetzara湖是阿尔及利亚东北部的重要湿地和Ramsar地区,其流域面临盐度挑战.
- 表面水质对于灌至关重要,直接受到流域特征的影响.
研究的目的:
- 确定影响费扎拉湖流域地表水质的因素.
- 评估支流水的适用性,用于灌.
主要方法:
- 在两个运动期间,从两个支流收集和化学分析了51个水样.
- 地质化学分析以确定水化学面.
- 多变量统计分析,包括主要组件分析 (PCA).
- 计算各种水质指数 (SAR,%Na,RSC,KR) 的方法.
主要成果:
- 已经确定了Na-Cl,Ca-Mg-Cl和Ca-Mg-HCO3水化学面的占主导地位.
- 根据矿化水平 (高度,中等,弱矿化) 的三种水类.
- 蒸发和酸盐气候变化被确定为主要矿化控制机制.
- 观察到涉及Na+,K+,Ca2+和Mg2+的离子交换过程.
- 根据质量指数,36%的支流水被认为不适合灌.
结论:
- 费扎拉湖流域的水矿化主要由蒸发和酸盐气候变化控制.
- 特定的水化学面与水源和地质构造有关.
- 重要的一部分支流水对灌构成风险,需要谨慎管理.
- 这些发现支持Fetzara湖及其流域的可持续水资源管理.
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