Hydrological Analysis of Agricultural Reservoir Watersheds Based on Water Utilization System Using the Catchment Hydrology Cycle Analysis Tool Model

Hyungjin Shin, Hyeokjin Lim, Jaenam Lee (), Seulgi Lee, Youngkyu Jin, Heesung Lim, Chul-sung Lee, Gyumin Lee, Sehoon Kim and Changi Park
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Hyungjin Shin: Rural Research Institute, Korea Rural Community Corporation, Ansan-si 15634, Republic of Korea
Hyeokjin Lim: Research and Development Department, Korea Institute of Hydrological Survey, Goyang-si 10390, Republic of Korea
Jaenam Lee: Rural Research Institute, Korea Rural Community Corporation, Ansan-si 15634, Republic of Korea
Seulgi Lee: Rural Research Institute, Korea Rural Community Corporation, Ansan-si 15634, Republic of Korea
Youngkyu Jin: Rural Research Institute, Korea Rural Community Corporation, Ansan-si 15634, Republic of Korea
Heesung Lim: Rural Research Institute, Korea Rural Community Corporation, Ansan-si 15634, Republic of Korea
Chul-sung Lee: Rural Research Institute, Korea Rural Community Corporation, Ansan-si 15634, Republic of Korea
Gyumin Lee: Department of Civil Engineering, Kyung Hee University, Yongin-si 17104, Republic of Korea
Sehoon Kim: Research and Development Department, Korea Institute of Hydrological Survey, Goyang-si 10390, Republic of Korea
Changi Park: Department of Rural Construction Engineering, Kongju National University, Yesan-gun 32439, Republic of Korea

Sustainability, 2024, vol. 16, issue 10, 1-14

Abstract: In this study, the catchment hydrology cycle analysis tool (CAT) model was used to conduct a comprehensive hydrological analysis of the water balance of agricultural reservoirs. Data from 2010 to 2017, including precipitation, water level data in the reservoir, groundwater usage, and wastewater discharge, were collected and compiled for the upper reaches of the Hantan River Dam. The current conditions and content curves of the 11 reservoirs within the watershed were investigated and recorded. The results were analyzed by simulating three scenarios: treating the entire watershed as 1 unit, dividing the watershed into 5 sub-watersheds according to the standard watershed criteria, and further subdividing it into 27 watersheds, taking into account the presence of agricultural reservoirs. In cases where watershed information is lacking, it is deemed that subdividing the watershed can enhance efficiency. The highest model efficiency was observed in the 27 sub-basins, particularly when accounting for agricultural reservoirs. This study proposed an efficient method for hydrological analysis of watersheds including ungauged areas.

Keywords: catchment hydrology cycle analysis tool (CAT); optimal watershed division; hydrological analysis; water use system; Hantan River watershed (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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