Drought and water scarcity can significantly impair the sustainable development of groundwater resources, a scenario commonly found in aquifers in the Mediterranean region. Water management measures to address these drivers of groundwater depletion are highly relevant, especially considering the increasing severity of droughts under climate change. This study evaluates the potential of managed aquifer recharge (MAR) to offset the adverse effects of drought and water scarcity on groundwater storage. Los Arenales aquifer (central Spain), which was unsustainably exploited for irrigation in the second half of the twentieth century, is employed as a case study. Two neighbouring zones within this aquifer are contrasted, namely, Los Arenales (LA) and Medina del Campo (MC). The primary difference between them in terms of water resources management is the wide-scale implementation of MAR systems in LA since the early 2000s. Several groundwater statistical methods are used. Groundwater-level trend analysis and average piezometric levels show in LA a faster recovery of aquifer storage and less susceptibility to drought compared to MC. On the other hand, standardised precipitation indexes and standardised groundwater level indexes of detrended groundwater-level time series, which do not include the effects of MAR, show that LA can be more negatively affected by drought and groundwater abstraction. The sharper recovery of piezometric levels in LA when considering MAR, and bigger drought impacts observed when the effects of this measure are removed, demonstrate that MAR can effectively alleviate the impacts of water scarcity and drought, providing an adaptation solution to climate change worldwide.

干旱和缺水会严重损害地下水资源的可持续发展，这种情况在地中海地区的含水层中很常见。解决这些地下水枯竭驱动因素的水管理措施具有高度相关性，特别是考虑到气候变化下干旱日益严重。本研究评估了管理含水层补给 (MAR) 以抵消干旱和缺水对地下水储存的不利影响的潜力。Los Arenales 含水层（西班牙中部）在 20 世纪下半叶被不可持续地用于灌溉，被用作案例研究。该含水层内的两个相邻区域形成对比，即 Los Arenales (LA) 和 Medina del Campo (MC)。它们在水资源管理方面的主要区别在于自 2000 年代初以来 MAR 系统在洛杉矶的大规模实施。使用了几种地下水统计方法。地下水位趋势分析和平均测压水位表明，与 MC 相比，洛杉矶的含水层储存恢复更快，对干旱的敏感性更低。另一方面，去趋势的地下水位时间序列的标准化降水指数和标准化地下水位指数（不包括 MAR 的影响）表明，洛杉矶受干旱和地下水抽取的负面影响更大。考虑到 MAR 时，洛杉矶的测压水位恢复得更快，并且在消除该措施的影响时观察到更大的干旱影响，