Abstract

This study examines the dynamic changes in groundwater levels and their spatial distribution in the Minqin Basin after the diversion of water from the ecosystem. It selected monitoring wells in different regions of the basin and analyzed the annual and seasonal fluctuations in groundwater levels before and after the water diversion. According to the findings, there is a notable shift in the rate of change in groundwater levels of the irrigated areas of the Minqin Basin: from an average of 0.62 m per year between 2001 and 2007 to a mere 0.01 m per year between 2008 and 2022. Since 2010, the groundwater level in the Qingtu Lake has increased by 1.01 m. The decline of Minqin Basin’s groundwater levels slowed down, and some places even witnessed rises in the groundwater level. The water levels in the region are generally stable.

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