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Proceedings of the International Association of Hydrological Sciences An open-access publication for refereed proceedings in hydrology

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Proc. IAHS, 379, 263-268, 2018
https://doi.org/10.5194/piahs-379-263-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Pre-conference publication
05 Jun 2018
Analysis of Spring Flow Change in the Jinan City under Influences of Recent Human Activities
Xiaomeng Liu1,2,3, Litang Hu1,2,3, and Kangning Sun1,2,3 1College of Water Sciences, Beijing Normal University, Beijing 100875, P.R. China
2Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing 100875, P.R. China
3Engineering Research Center of Groundwater Pollution Control and Remediation of Ministry of Education, Beijing Normal University, Beijing 100875, P.R. China
Abstract. Jinan city, the capital of Shandong Province in China, is famous for its beautiful springs. With the rapid development of the economy in recent years, water demand in Jinan city has been increasing rapidly. The over-exploitation of groundwater has caused a decline in groundwater level and, notably, dried up springs under extreme climate conditions. To keep the springs gushing perennially and sustainably use groundwater resources, the local government has implemented many measures to restore the water table, such as the Sponge City Construction Project in Jinan. Focusing on changes in spring flow and its impact factors in Jinan, this paper analyzes the changes in observed spring flow in the most recent 50 years and then discusses the causes of decreases in the spring flow with the consideration of climate and human activities. Spring flow in the study area was changed from the natural state to a period of multiwater source management. The artificial neural network (ANN) model was developed to demonstrate the relationship among spring flow, precipitation, and groundwater abstraction to predict the variations of spring flow under the conditions of climate change and human activities. The good agreement between the simulated and observed results indicates that both precipitation and exploitation are important influence factors. However the effective infiltration of precipitation into groundwater is the most influential factor. The results can provide guidance for groundwater resource protection in the Jinan spring catchment.
Citation: Liu, X., Hu, L., and Sun, K.: Analysis of Spring Flow Change in the Jinan City under Influences of Recent Human Activities, Proc. IAHS, 379, 263-268, https://doi.org/10.5194/piahs-379-263-2018, 2018.
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Short summary
The over-exploitation of groundwater has caused a decline in groundwater level and dried up springs in Jinan city. This paper analyzes the changes in observed spring flow and discusses the causes of decreases in the spring flow with the consideration of climate and human activities. Spring flow was changed from the natural state to a period of multiwater source management. The results indicates that both precipitation and exploitation are important influence factors of spring flow.
The over-exploitation of groundwater has caused a decline in groundwater level and dried up...
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