Volume 39 Issue 6
Dec.  2025
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Jing Zhihua, Liu Wenbo, Zhang Mingyu, Yang Rui, Wang Peng. Comprehensive evaluation of water resources carrying capacity in Chengde area[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(6): 808-815. doi: 10.20265/j.cnki.issn.1007-2993.2024-0458
Citation: Jing Zhihua, Liu Wenbo, Zhang Mingyu, Yang Rui, Wang Peng. Comprehensive evaluation of water resources carrying capacity in Chengde area[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(6): 808-815. doi: 10.20265/j.cnki.issn.1007-2993.2024-0458

Comprehensive evaluation of water resources carrying capacity in Chengde area

doi: 10.20265/j.cnki.issn.1007-2993.2024-0458
  • Received Date: 2024-10-10
  • Accepted Date: 2025-04-09
  • Rev Recd Date: 2025-02-28
  • Available Online: 2025-12-08
  • Publish Date: 2025-12-08
  • As a critical water conservation area and ecological barrier in the Beijing-Tianjin-Hebei region, the water resources carrying capacity (WRCC) of Chengde is vital for regional sustainable development and ecological security. This study proposed a three-factor evaluation model (water supply ratio, nitrogen pollution load, and groundwater level variation) based on monitoring data of water supply-demand relationships, water quality, and groundwater dynamics in Chengde. The analytic hierarchy process (AHP) was applied to determine indicator weights, and the spatial heterogeneity of WRCC across 43 small watersheds was systematically evaluated. Results demonstrate that watersheds around Chengde City, Chengde County, and Longhua County exhibited relatively low WRCC due to high agricultural water use (62%), partial nitrogen load accumulation, and groundwater over-extraction pressure (annual decline >0.5 m). In contrast, northern regions such as Weichang County and Fengning County showed higher WRCC owing to sufficient water supply, stable water quality, and minimal groundwater level fluctuations. The study highlighted the combined effects of urbanization and agricultural practices on WRCC and proposed strategies, including zoning management, monitoring system refinement, and inter-regional coordination to enhance water resource governance. This method provides a scientific foundation for sustainable water resource utilization in medium- and small-scale regions.

     

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