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http://dx.doi.org/10.7857/JSGE.2019.24.2.023

Estimation of Regional Future Agricultural Available Groundwater Supply in Jeju Island Using Water Balance Method  

Song, Sung-Ho (Rural Research Institute, Korea Rural Community Corporation)
Lee, Gyu-Sang (Rural Research Institute, Korea Rural Community Corporation)
Myoung, Woo-Ho (Rural Research Institute, Korea Rural Community Corporation)
An, Jung-Gi (Jungmyung Engineering)
Baek, Jin-Hee (Jeju Special Self-government Province Branch, Korea Rural Community Corporation)
Jung, Cha-Youn (Jeju Special Self-government Province Branch, Korea Rural Community Corporation)
Publication Information
Journal of Soil and Groundwater Environment / v.24, no.2, 2019 , pp. 23-37 More about this Journal
Abstract
To evaluate the available groundwater supply to the agricultural water demand in the future with the climate change scenarios for 40 sub-regions in Jeju Island, groundwater recharge and the available groundwater supply were estimated using water balance analysis method. Groundwater recharge was calculated by subtracting the actual evapotranspiration and direct runoff from the total amount of water resources and available groundwater supply was set at 43.6% from the ratio of the sustainable groundwater capacity to the groundwater recharge. According to the RCP 4.5 scenario, the available groundwater supply to the agricultural water demand is estimated to be insufficient in 2020 and 2025, especially in the western and eastern regions of the island. However, such a water shortage problem is alleviated in 2030. When applying the RCP 8.5 scenario, available groundwater supply can't meet the water demand over the entire decade.
Keywords
Available groundwater supply; Agriculture water demand; Groundwater recharge; Climate change scenario; Jeju island;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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