Challenges and research pathways for the evolution of water resources supply and demand in the Beijing-Tianjin-Hebei Region

doi:10.13745/j.esf.sf.2025.3.42

Abstract

Abstract:

In the past one hundred years, water demand and supply in the Beijing-Tianjin-Hebei region increased greatly due to rapid socio-economic development, accelerated urbanization, expansion of crop land as well as climate change. It has resulted in substantial reduction of regional water resources that cannot meet the total water requirement. This situation has substantially alleviated in the recent years when executions of comprehensive measures of large-scale intra-basin water transfer, water conservation, and economic structure adjustments. As the low-carbon and greening development policy has announced for controlling global change and will be executed in future, the socio-economy and ecological environment in the region will be further adjusted. It brings new challenges and opportunities to make schemes of balancing available water resources and demands. This study divides the hydrological regime and the evolution of water resources supply/demand in the Beijing-Tianjin-Hebei region into three stages, based on the characteristics of water resources and supply/demand relationship, and their causes, treating measures and pathways. The shifts in the drives of the water resources evolution in different stages of the “S-type” curve are systematically analyzed. The impact of low-carbon development, green growth, and climate change adaptation on the transformation of water resource supply and demand patterns is elucidated. Then, we propose the approaches to enhance the local water recovery capacity through the study of the water cycle mechanism, as well as pathways to improve the water resource security capacity in response to extreme climate change. This study will provide scientific support for the sustainable utilization of water resources in the Beijing-Tianjin-Hebei region and other water-scarce areas.

Key words: water resources, hydrological cycle, supply and demand Balance, Beijing-Tianjin-Hebei region

CLC Number:

P33
TV213

CHEN Xi, GAO Man, DONG Jianzhi, WANG Zhe. Challenges and research pathways for the evolution of water resources supply and demand in the Beijing-Tianjin-Hebei Region[J]. Earth Science Frontiers, 2025, 32(3): 436-444.

Figures/Tables 5

Fig.1 Schematic of the evolution tracks of water resource supply and demand and the effects of climate, human activities and scientific cognition in the Beijing-Tianjin-Hebei Region

Fig.2 The accumulative rainfall-runoff relationship in the Haihe River Basin. Modified after [7].

Fig.3 Changes in runoff generation mechanisms and river-groundwater transformations due to groundwater table declining

Fig.4 Changes in (a) water supply, (b) water consumption and their structure in the Beijing-Tianjin-Hebei region during 2003-2020

Fig.5 Terrestrial water storage (TWS) changes in North China based on GRACE and water balance simulation. Modified after [23].

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