Groundwater is an important component of the global freshwater supply and is affected by climate. There is a strong need to understand and evaluate the impacts of climate change over the long term, in order to better plan and manage precious groundwater resources. Turkey, located in Mediterranean basin, is threatened by climate change. The purpose of this study was, through a quantitative overview, to determine the impacts of climate change on the groundwater recharge rates in Küçük Menderes River Basin in western Turkey. According to the data of Ödemiş and Selçuk meteorological stations located in the basin, there is a significantly decreasing trend in precipitation combined with increasing trends in temperature and evaporation observed in 1964–2011. The calculations of groundwater recharge with hydrologic budget method for the observation period showed an approximately 15% decline in groundwater recharge in the basin. Thus, the combined impacts of climate change and excessive groundwater pumping, due to increasing water demand, have caused a significant decline in groundwater levels. Consequently, the proper management of the groundwater resources threatened by climate change requires effective governance to both mitigate the adverse impacts of climate change and facilitate the adaptation of sustainable integrated water management policies.

中文翻译：

---

气候变化对土耳其西部 Küçük Menderes 河流域地下水补给的影响

地下水是全球淡水供应的重要组成部分，受气候影响。迫切需要了解和评估气候变化的长期影响，以便更好地规划和管理宝贵的地下水资源。位于地中海盆地的土耳其正受到气候变化的威胁。本研究的目的是通过定量概述确定气候变化对土耳其西部 Küçük Menderes 河流域地下水补给率的影响。根据位于流域内的Ödemiş 和Selçuk 气象站的数据，1964-2011 年观测到的降水量呈显着下降趋势，而温度和蒸发量呈上升趋势。用水文预算法计算的观测期地下水补给量显示流域地下水补给量下降约15%。因此，由于需水量增加，气候变化和过度抽取地下水的综合影响导致地下水位显着下降。因此，受气候变化威胁的地下水资源的适当管理需要有效的治理，以减轻气候变化的不利影响并促进可持续综合水资源管理政策的适应。