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<p>Freshwater scarcity poses critical challenges to sustainable urban development, yet existing strategies inadequately address the spatial heterogeneity across economically and geographically diverse regions such as China’s Haihe River Basin (HRB). This study applies the planetary boundary framework to quantify regional freshwater boundary pressure (RFBP) across 25 cities in the HRB from 2011 to 2019. A decoupling model and Logarithmic Mean Divisia Index (LMDI) decomposition based on the extended IPAT equation identify key drivers behind changes in RFBP. Results reveal substantial disparities among cities: only five cities achieved economic growth while successfully reducing freshwater pressure, with agriculture dominating freshwater extraction. Affluence and regional freshwater boundary (RFB) constraints emerge as primary drivers influencing freshwater sustainability. Transitioning toward less water-intensive service economies significantly alleviates freshwater pressure, particularly in economically advanced cities such as Beijing and Shijiazhuang. Improving agricultural water-use efficiency, promoting economic restructuring, and expanding regional freshwater boundaries are recommended as critical policy interventions. These findings provide actionable guidance for water resource governance applicable to similar water-scarce urban regions.</p>

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Decoupling and drivers of freshwater boundary pressures in Haihe River Basin: insights for sustainable urban water management

  • 期刊论文

  • 发表日期：

    2025年6月3日

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  • Liyang Feng,
  • Dongzhe Liang,
  • Li He,
  • Yanlong Guan

摘要

Freshwater scarcity poses critical challenges to sustainable urban development, yet existing strategies inadequately address the spatial heterogeneity across economically and geographically diverse regions such as China’s Haihe River Basin (HRB). This study applies the planetary boundary framework to quantify regional freshwater boundary pressure (RFBP) across 25 cities in the HRB from 2011 to 2019. A decoupling model and Logarithmic Mean Divisia Index (LMDI) decomposition based on the extended IPAT equation identify key drivers behind changes in RFBP. Results reveal substantial disparities among cities: only five cities achieved economic growth while successfully reducing freshwater pressure, with agriculture dominating freshwater extraction. Affluence and regional freshwater boundary (RFB) constraints emerge as primary drivers influencing freshwater sustainability. Transitioning toward less water-intensive service economies significantly alleviates freshwater pressure, particularly in economically advanced cities such as Beijing and Shijiazhuang. Improving agricultural water-use efficiency, promoting economic restructuring, and expanding regional freshwater boundaries are recommended as critical policy interventions. These findings provide actionable guidance for water resource governance applicable to similar water-scarce urban regions.