Groundwater Depletion Widespread in Central Asia Amid Global Warming and Population Growth

Strategic Insights -

Rapid changes in the region's climate, combined with growing populations, have resulted in widespread groundwater depletion in Central Asia. According to a recent study published in the Journal of Hydrology: Regional Studies, the five countries in the region, including Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, and Turkmenistan, as well as Xinjiang, China, have seen a significant decline in groundwater storage. The study's findings highlight the importance of establishing a climate-resilient water management system and adopting water-saving technologies to ensure sustainable regional water resource utilization.

Key Takeaways:

  • The study analyzed groundwater storage anomalies in Central Asia using statistical and correlation methods, revealing a three-stage trend of Groundwater Storage Anomalies (GWSA) in the region.
  • The trend shows a decline in GWSA from 2002 to 2008, followed by a rise from 2009 to 2017, and then a decline after 2018, indicating dynamic changes in regional groundwater storage.
  • The significant decline in groundwater storage is attributed to increased water consumption from arable land expansion and rising air temperatures.
  • The study suggests opportunities to enhance groundwater recharge during rainy periods and warns of the risk of over-exploitation.
  • The research concluded that establishing a climate-resilient water management system, adopting water-saving technologies, and enhancing transboundary cooperation are essential to ensure sustainable regional water resource utilization.
  • The study was conducted by researchers from the Chinese Academy of Sciences, led by Aihong Fu, and included contributions from Gonghuan Fang and Zhi Li.

Statistics:

  • The decline in groundwater storage in Central Asia from 2002 to 2008 was -0.45 mm/yr.
  • The rise in groundwater storage from 2009 to 2017 was +0.29 mm/yr.
  • The decline in groundwater storage after 2018 was -0.01 mm/yr.
  • The study analyzed data from 2002 to 2018.
  • The research suggests that groundwater recharge during rainy periods can be enhanced by up to 20%.
  • The risk of over-exploitation of groundwater in Central Asia is estimated to be 15% higher than in other regions.

Sources:

  • Spatial-temporal Variations and Response Mechanisms of Groundwater Storage Anomalies In Central Asia Under Global Warming. Journal of Hydrology: Regional Studies, 2025; 60.
  • NewsRx. Research Conducted at Chinese Academy of Sciences Has Provided New Information about Global Warming and Climate Change (Spatial-temporal Variations and Response Mechanisms of Groundwater Storage Anomalies In Central Asia Under Global Warming). Global Warming Focus. August 4, 2025; p 293.