Estimation of hydrogeological spring catchment area: case of Jinci spring in North China
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Date
2025
Journal Title
Journal ISSN
Volume Title
Publisher
Springer Nature
Abstract
Hydrogeological spring catchment area of Jinci spring is the starting point for all hydrogeological analyses and one of the fundamental datasets for karst groundwater modeling. Unfortunately, there is a lack of detailed research on the hydrogeological spring catchment area. To sustainably utilize and protect the karst groundwater resources of Jinci spring, this paper investigates the variation pattern of the spring flow decrease coefficient from 1956 to 1994, estimates the hydrogeological spring catchment area by using the linear regression method and the Turc method. The results show that: (1) The spring flow decrease coefficient generally shows an increasing trend over time, and its variation indicates the time-varying characteristics of the hydrogeological spring catchment area. (2) The hydrogeological spring catchment areas estimated by the linear regression method are 2143, 2084 and 2037 km2, with an average of 2088 km2. (3) The hydrogeological spring catchment area estimated by the Turc method exhibits a series of values, and its time-varying characteristics is the dynamic change with time, resulting from the joint effects of natural and anthropogenic factors. This study provides a theoretical foundation for the protection and management of karst groundwater in the semi-arid region of northern China.
Description
Keywords
Decrease coefficient, Hydrogeological spring catchment area, Jinci spring, Time-varying characteristics, Turc method
Citation
Zhang, Z., Wang, Z., Zheng, Q., Xu, Y., Zhao, X., Guo, L. and Zhang, J., 2025. Estimation of hydrogeological spring catchment area: case of Jinci spring in North China. Carbonates and Evaporites, 40(4), p.128.