Scholarlink

<p>This study evaluates groundwater flow dynamics, depletion patterns, and management strategies in the Hodna basin (Algeria) using a combination of MODFLOW and GIS-based analysis. Therefore, groundwater flow was modeled from 1973 to 2005, while calibration and validation processes were performed based on trial-and-error method in order to refine the model. Spatial variability in transmissivity shows strong control by lithology and structural features, with higher values in limestone and sandstone formations improving recharge in the northeast and southeast regions. Resulted hydraulic heads after simulation reveal a strong gradient from recharge areas to heavily pumped areas, with a pronounced depression cone driven by intensive groundwater abstraction. Therefore, transient flow modeling (365 days period) suggests drawdown in the center and northwestern regions, particularly where pumping exceeds natural recharge, leading to localized overexploitation, and possible aquifer drying. In contrast, southern areas exhibit moderate drawdown, reflecting a temporary balance between recharge and abstraction. Groundwater depletion is heterogeneous and likely linked to hydrogeological properties and human pressures. This paper highlights the important role of adaptive management, and recharge and monitoring enhancement in groundwater depletion mitigation. The integrated modeling approach offers a reliable framework for supporting sustainable groundwater management in semi-arid regions facing water stress.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Groundwater dynamics simulation in Hodna (Algeria): aquifer modeling approach

  • 期刊论文

  • 发表日期：

    2026年5月16日

查看全文
  • Ahmed Ferhati,
  • Nour El Houda Belazreg,
  • Hakim Djafer Khodja

摘要

This study evaluates groundwater flow dynamics, depletion patterns, and management strategies in the Hodna basin (Algeria) using a combination of MODFLOW and GIS-based analysis. Therefore, groundwater flow was modeled from 1973 to 2005, while calibration and validation processes were performed based on trial-and-error method in order to refine the model. Spatial variability in transmissivity shows strong control by lithology and structural features, with higher values in limestone and sandstone formations improving recharge in the northeast and southeast regions. Resulted hydraulic heads after simulation reveal a strong gradient from recharge areas to heavily pumped areas, with a pronounced depression cone driven by intensive groundwater abstraction. Therefore, transient flow modeling (365 days period) suggests drawdown in the center and northwestern regions, particularly where pumping exceeds natural recharge, leading to localized overexploitation, and possible aquifer drying. In contrast, southern areas exhibit moderate drawdown, reflecting a temporary balance between recharge and abstraction. Groundwater depletion is heterogeneous and likely linked to hydrogeological properties and human pressures. This paper highlights the important role of adaptive management, and recharge and monitoring enhancement in groundwater depletion mitigation. The integrated modeling approach offers a reliable framework for supporting sustainable groundwater management in semi-arid regions facing water stress.