Study maps global groundwater drought recovery patterns
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A team led by Sandra Hauswirth at Utrecht University used a one-kilometer global groundwater model to produce the first worldwide analysis of groundwater drought recovery. The study classifies systems as resilient (57 percent), vulnerable (15 percent) or unstable (26 percent) and finds that climate, geology and landscape jointly control recovery speed, while heavy abstraction reduces recovery capacity in places like California, Spain, India and the northern China plain. The classification offers a common physical basis for policy choices such as managed aquifer recharge, abstraction limits and prioritized monitoring to prevent long-term aquifer decline.
57 percent of global groundwater systems show rapid recovery after drought
Context
Droughts lower aquifer levels more slowly to recover than surface water does. The study…
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