Global depletion of groundwater resources

  title={Global depletion of groundwater resources},
  author={Yoshihide Wada and L. P. H. van Beek and Cheryl M. van Kempen and Josef W. T. M. Reckman and Slavek Vasak and Marc F. P. Bierkens},
  journal={Geophysical Research Letters},
In regions with frequent water stress and large aquifer systems groundwater is often used as an additional water source. If groundwater abstraction exceeds the natural groundwater recharge for extensive areas and long times, overexploitation or persistent groundwater depletion occurs. Here we provide a global overview of groundwater depletion (here defined as abstraction in excess of recharge) by assessing groundwater recharge with a global hydrological model and subtracting estimates of… 

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