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Article

Identification of Preferential Recharge Zones in Karst Systems Based on the Correlation between the Spring Level and Precipitation: A Case Study from Jinan Spring Basin

1
College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
2
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China
3
Jinan Rail Transit Group Co., Ltd., Jinan 250101, China
4
Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Maria Mimikou
Water 2021, 13(21), 3048; https://doi.org/10.3390/w13213048
Received: 6 September 2021 / Revised: 8 October 2021 / Accepted: 29 October 2021 / Published: 1 November 2021
The Jinan spring basin is located in the karst area of northern China, where springs serve as important sources of water supply. Several studies on spring protection and water supply have been carried out, and scholars have developed some laws on local groundwater flow dynamic and characteristics of aquifer structures. Unfortunately, there is a lack of detailed research on preferential recharge zones, which are the main recharge pathways of springs. Therefore, this research focuses on identifying preferential recharge zones based on the correlation between the spring level and precipitation. The results show that when precipitation is more intense or lasts longer, there is a stronger correlation between spring level and precipitation. It has been established that the precipitation at Donghongmiao station has the closest relationship with the dynamic of Baotu spring, which is found to be the most significant contribution to spring preservation. Two potential preferential recharge zones in the Jinan spring basin are detected through correlation analysis and geological exploration data. These findings support spring protection and water supply projects in karst regions. View Full-Text
Keywords: Jinan spring basin; spring level; rainfall; correlation; preferential recharge zone Jinan spring basin; spring level; rainfall; correlation; preferential recharge zone
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MDPI and ACS Style

Chen, Y.; Shu, L.; Li, H.; Opoku, P.A.; Li, G.; Xu, Z.; Qi, T. Identification of Preferential Recharge Zones in Karst Systems Based on the Correlation between the Spring Level and Precipitation: A Case Study from Jinan Spring Basin. Water 2021, 13, 3048. https://doi.org/10.3390/w13213048

AMA Style

Chen Y, Shu L, Li H, Opoku PA, Li G, Xu Z, Qi T. Identification of Preferential Recharge Zones in Karst Systems Based on the Correlation between the Spring Level and Precipitation: A Case Study from Jinan Spring Basin. Water. 2021; 13(21):3048. https://doi.org/10.3390/w13213048

Chicago/Turabian Style

Chen, Yuan, Longcang Shu, Hu Li, Portia Annabelle Opoku, Gang Li, Zexuan Xu, and Tiansong Qi. 2021. "Identification of Preferential Recharge Zones in Karst Systems Based on the Correlation between the Spring Level and Precipitation: A Case Study from Jinan Spring Basin" Water 13, no. 21: 3048. https://doi.org/10.3390/w13213048

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