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2025 Vol.67, Issue 5
Analysis of Irrigation Water Cycle Dynamics under Water Supply Scenarios in an Irrigated District

용수 공급 시나리오에 따른 관개지구 물순환 특성 분석

Ji-Hyeon Shina
,
Won-Ho Namb†
,
Kwang-Sik Yoonc††
,
Min-Chul Lad
신 지현a
,
남 원호b†
,
윤 광식c††
,
나 민철d
aPh.D. Student, Integrated Systems Engineering, Hankyong National University, Anseong, Republic of Korea
bProfessor, School of Social Safety and Systems Engineering, Institute of Agricultural Environmental Science, National Agricultural Water Research Center, Hankyong National University, Anseong, Republic of Korea
cProfessor, Department of Rural and Bio-systems Engineering & Education and Research Unit for Climate-Smart Reclaimed-Tideland Agriculture (BK21 four), Chonnam National University, Gwangju, Republic of Korea
dDeputy Director, Water Management Supporting Department, Korea Rural Community Corporation, Sejong, Republic of Korea
†Corresponding author Tel.: +82-31-670-5137, Fax: +82-31-670-5139 E-mail: wonho.nam@hknu.ac.kr
††Corresponding author Tel.: +82-62-530-2158, Fax: +82-62-530-2159 E-mail: ksyoon@jnu.ac.kr
2025. pp. 1-11
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Abstract

Water circulation in irrigated areas is influenced by a range of factors, including climate change, environmental changes within watersheds, and socio-economic conditions. It involves complex interactions among hydrological components such as precipitation, runoff, evapotranspiration, water supply, water demand, and return flow. For effective integrated water management at the watershed scale, it is essential to modularize these simulation components as independent entities, allowing for comprehensive analysis of rural hydrological systems. Accurate analysis of irrigation water circulation requires the interpretation and modeling of key components within the irrigation water system. This study proposes a modeling approach using the Environmental Protection Agency’s Storm Water Management Model (EPA-SWMM) to estimate and simulate various irrigation water components, including water use, demand, drainage, and return flow. Additionally, irrigation water supply simulations were conducted under three different water management scenarios. The study focuses on Yongdang Reservoir, located in Chungju, Chungcheongbuk-do, South Korea. Simulations were performed for the irrigation period from May to September, 2024. The results were analyzed with respect to water use, demand, drainage, return flow, and water shortages, and irrigation water circulation was evaluated through volumetric calculations. The findings contribute to the development of a baseline modeling framework for analyzing irrigation water circulation, incorporating water supply system dynamics. These results are expected to provide valuable insights for securing a stable irrigation water supply and guiding future water management policies.

Keywords
Irrigation water
water circulation
modeling
irrigation canal network
water balance analysis
canal control
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Information
  • Publisher :The Korean Society of Agricultural Engineers
  • Publisher(Ko) :한국농공학회
  • Journal Title :Journal of Korean Society of Agricultural Engineers
  • Journal Title(Ko) :한국농공학회논문집
  • Volume : 67
  • No :5
  • Pages :1-11
  • Received Date : 2025-04-11
  • Revised Date : 2025-06-11
  • Accepted Date : 2025-06-24
  • DOI :https://doi.org/10.5389/KSAE.2025.67.5.001
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