Journal
GRUNDWASSER
Volume 28, Issue 3, Pages 271-285Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00767-023-00550-9
Keywords
Numerical modeling; Groundwater management; Irrigation; Climate change; Regional water balance
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To address the impact of climate change on both agriculture and environmental protection, the sustainable management of regional groundwater resources requires consideration of both needs. The local water management authority initiated a regional water balance model, which simulated the impact of climate variability and anthropogenic parameters such as groundwater abstraction, irrigation, and cultivation practice. The model provides enhanced knowledge on regional hydrogeology and relevant system processes, and offers consolidated findings on the key drivers of sustainable water balance in the modeled region. Evaluation of groundwater levels and water budgets in different climate and management scenarios supports the authorities in developing a framework for sustainable water management.
Sustainable management of regional groundwater resources needs to address both the needs of agricultural practice and environmental protection under the impact of climate change. To create an evaluation tool to assess sustainable groundwater extraction for irrigation purposes, the local water management authority (Wasserwirtschaftsamt Aschaffenburg) initiated a regional water balance model comprising a coupled soil water and groundwater flow model. The impact of climate variability and anthropogenic parameters such as groundwater abstraction, irrigation and cultivation practice were simulated. The model led to enhanced knowledge on the regional hydrogeology, relevant system processes and provides consolidated findings about the key drivers of sustainable water balance in the modelled region. The sensitivity of groundwater levels and the (soil)water budget was evaluated in various climate and management scenarios. The results support the authorities in providing a framework for sustainable water management.
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