Groundwater withdrawal results in a significant depletion of groundwater storage due to the frequency and intensity of droughts and increasing irrigation demands. To ensure the sustainable use of groundwater resources, it is necessary to accurately simulate the groundwater behavior of catchments using a surface–groundwater integrated runoff model. Most of the existing catchment runoff models have been applied to surface water management; thus, integrated runoff analysis studies that consider the interaction between surface water and groundwater are required. Due to the intensive agricultural sector in Korea and the position of rice as the staple in the Korean diet, more than 50% of groundwater abstraction is used for irrigation. Therefore, it is very important to understand the hydrological interrelationships between agricultural areas and the entire watershed. This study aimed to compare and analyze the groundwater levels in the mountainous areas and paddy field areas in the Boryeong Dam catchment through a surface–groundwater integrated runoff simulation using the Catchment Hydrologic Cycle Assessment Tool model, and to compare the hydrological responses in wet years (2010–2012) and dry years (2014–2016). The maximum difference in the monthly groundwater level in the dry years compared to the wet years was 1.07 m at the forest catchment and 0.37 m at the paddy catchment. These results indicate that the impact of drought on the groundwater level of paddy catchments is not significant compared to the forest catchments; however, drought slows the recovery of the groundwater level before the rainy season, thereby limiting the agricultural groundwater use in the catchment.

中文翻译：

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韩国保宁大坝集水区极端干旱时期地下水抽取对水文响应的影响

由于干旱的频率和强度以及灌溉需求的增加，地下水抽取导致地下水储存量显着枯竭。为确保地下水资源的可持续利用，需要使用地表-地下水综合径流模型准确模拟集水区的地下水行为。大多数现有的集水区径流模型已应用于地表水管理；因此，需要考虑地表水和地下水之间相互作用的综合径流分析研究。由于韩国的集约化农业部门以及大米在韩国饮食中的主食地位，超过 50% 的地下水抽取用于灌溉。所以，了解农业区与整个流域之间的水文相互关系非常重要。本研究旨在通过使用流域水文循环评估工具模型的地表-地下水综合径流模拟，比较和分析保宁大坝流域山区和稻田区的地下水位，并比较湿润年份的水文响应（ 2010-2012）和干旱年份（2014-2016）。与丰水年相比，旱年月地下水位的最大差异在森林集水区为 1.07 m，在水稻集水区为 0.37 m。这些结果表明，与森林集水区相比，干旱对水稻集水区地下水位的影响并不显着；然而，