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http://dx.doi.org/10.21729/ksds.2021.14.1.61

Recharge Potential Assessment of Artificial Recharge System for Agricultural Drought Adaptation  

Lee, Jae Young (Fusion Research Institute, Sinwoo Engineering CO., LTD.)
Kim, Gyoo Bum (Department of Construction Safety and Disaster Prevention, Daejeon University)
Publication Information
Journal of Korean Society of Disaster and Security / v.14, no.1, 2021 , pp. 61-72 More about this Journal
Abstract
There is an increasing need for water supply plan using sustainable groundwater to resolve water shortage problem caused by drought due to climate change and artificial aquifer recharge has recently emerged as an alternative. This study deals with recharge potential assessment for artificial recharge system and quantitative assessment for securing stable water and efficient agricultural water supply adapt to drought finding optimal operating condition by numerical modeling to reflect recharge scenarios considering climate condition, target water intake, injection rate, and injection duration. In order to assess recharge potential of injection well, numerical simulation was performed to predict groundwater level changes in injection and observation well respect to injection scenarios (Case 1~4) for a given total injection rate (10,000 m3). The results indicate that groundwater levels for each case are maintained for 25~42 days and optimal injection rate is 50 m3/day for Case 3 resulted in groundwater level rise less than 1 m below surface. The results also show that influential area of groundwater level rise due to injection was estimated at 113.5 m and groundwater storage and elapsed time were respectively increased by 6 times and 4 times after installation of low permeable barrier. The proposed assessment method can be contributed to sustainable agricultural water supply and stable water security for drought adaptation.
Keywords
Artificial recharge; Injection rate; Numerical modeling; Water supply;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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