13:45 〜 14:00
[AHW17-01] Economic Analysis of Floodwater Resource Utilization in Detention Basins: a case study for Dianbao Creek
キーワード：Economic Benefit Analysis:, Water Resource Management, Flood Control
This study proposes a gravel pillar engineering approach to be installed in the existing detention basins that would both enhance flood control and contributes to sustainable water resource management in response to climate change, rainfall intensity becomes higher and flooding incidents have become more frequent. To enhance both flood mitigation strategies and groundwater resources alongside existing detention basins, and optimized basins to maximize infiltration capabilities, thereby increasing groundwater resources and improving flood detention capacity are proposed.
This study evaluates four scenarios for economic benefit analysis: no detention basin (Scenario 1), the presence of the AB detention basin (Scenario 2), the AB detention basin combined with recommended water resource projects (Scenario 3), and the AB detention basin with recommended water resource projects and gravel pile construction (Scenario 4). Results are shown that Scenarios 3 and 4 have higher benefit-cost ratios of 1.50 and 1.58, respectively. Scenario 4, in addition to increasing groundwater resources, also enhances flood protection benefits. Regarding water resources, Scenarios 3 and 4 offer an estimated benefit of augmenting water resources by 4.86 to 5.06 million cubic meters.
In conclusion, adapting detention basins for floodwater resource utilization is a practical approach to both address the escalating flood risks associated with climate change and optimize water resource management. Scenario 4 stands out as the most economically advantageous option, offering enhanced flood protection and increased groundwater resources. This research underscores the importance of adopting multifaceted strategies to address climate-related challenges and foster resilience in the relative communities.
This study evaluates four scenarios for economic benefit analysis: no detention basin (Scenario 1), the presence of the AB detention basin (Scenario 2), the AB detention basin combined with recommended water resource projects (Scenario 3), and the AB detention basin with recommended water resource projects and gravel pile construction (Scenario 4). Results are shown that Scenarios 3 and 4 have higher benefit-cost ratios of 1.50 and 1.58, respectively. Scenario 4, in addition to increasing groundwater resources, also enhances flood protection benefits. Regarding water resources, Scenarios 3 and 4 offer an estimated benefit of augmenting water resources by 4.86 to 5.06 million cubic meters.
In conclusion, adapting detention basins for floodwater resource utilization is a practical approach to both address the escalating flood risks associated with climate change and optimize water resource management. Scenario 4 stands out as the most economically advantageous option, offering enhanced flood protection and increased groundwater resources. This research underscores the importance of adopting multifaceted strategies to address climate-related challenges and foster resilience in the relative communities.