Insight into landscape characteristics influence on the adaptability of estuarine shallow groundwater system to 100-year extreme precipitation
Study region: the Yellow River Delta, China Study focus: A statistical investigation of the adaptability of the shallow groundwater system to 100-year storm precipitation, using typhoon Lekima as a case study to examine the influences of local landscape characteristics. New hydrological insights for...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-02-01
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| Series: | Journal of Hydrology: Regional Studies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581825000114 |
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| Summary: | Study region: the Yellow River Delta, China Study focus: A statistical investigation of the adaptability of the shallow groundwater system to 100-year storm precipitation, using typhoon Lekima as a case study to examine the influences of local landscape characteristics. New hydrological insights for the region: The adaptability of the shallow groundwater system is associated with four groundwater adaptability patterns classified by groundwater electricity recovery. Patterns 3 and 4, compared to patterns 1 and 2, exhibit lower groundwater adaptability, being more susceptible to groundwater salinization and waterlogging, and tending to take longer to recover from disturbances caused by extreme storm precipitation. Landscape characteristics, particularly the combination of artificial and natural waterways, regulate the differences in groundwater responses among the four patterns by modulating three types of groundwater-precipitation relationships. Types 1 and 2, compared to type 3, show significant water level rises even with low rainfall amounts. This raises potential concerns that, in future scenarios of increased storm intensity, the shallow groundwater systems dominated by types 2 and 3 may face higher disaster risks. Under climate change, our research findings can serve as a basis for guiding actions, helping to identify priority groundwater system entities for protection, and suggesting protective measures from a landscape feature perspective. |
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| ISSN: | 2214-5818 |