[논문]대규모 농업용저수지 수혜면적 변화에 따른 효율적 용수재분배 모의

성무홍; 정민혁; 범진아; 박태선; 이재남; 정형모; 김영주; 유승환; 윤광식

doi:10.5389/ksae.2021.63.3.001

[국내논문] 대규모 농업용저수지 수혜면적 변화에 따른 효율적 용수재분배 모의
Simulation of Water Redistribution for the Resized Beneficiary Area of a Large Scale Agricultural Reservoir 원문보기

한국농공학회논문집 = Journal of the Korean Society of Agricultural Engineers, v.63 no.3, 2021년, pp.1 - 12

성무홍 (Chonnam Regional Headquarter, Korea Rural Community Corporation (KRC)) , 정민혁 (Department of Rural and Bio-Systems Engineering, Chonnam National University) , 범진아 (Department of Rural and Bio-Systems Engineering, Chonnam National University) , 박태선 (Kangwon Regional Headquarter, Korea Rural Community Corporation (KRC)) , 이재남 (Rural Research Institute, Korea Rural Community Corporation (KRC)) , 정형모 (Project Planning Office, Korea Rural Community Corporation (KRC)) , 김영주 (Department of Cadastre and Civil Engineering, VISION College of Jeonju) , 유승환 (Department of Rural and Bio-Systems Engineering, Chonnam National University) , 윤광식 (Department of Rural and Bio-Systems Engineering, Chonnam National University)

Abstract ▼ AI-Helper

Optimal water management is to efficiently and equally supply an appropriate amount of water by using irrigation facilities. Therefore, it is necessary to evaluate water supply capacity through distribution simulation between the designed distribution rate and re-distributed rate according to the changed farming conditions. In this study, we recalculated the agricultural water supply amount of Geumcheon main canal, which beneficiary area was reduced due to the development of Gwangju-Jeonnam innovation city, and we constructed a canal network using the SWMM model to simulate the change in supply rate of each main canal according to the re-distributed rate. Even though the supply amount of the Geumcheon main canal was reduced from 1.20 m3/s to 0.90 m3/s, it showed a similar supply rate to the current, and the reduced quantity could be supplied to the rest of the main canal. As a result, the arrival time at the ends of all main canal, except for the Geumcheon main canal, decreased from 1 to 3 hours, and the supply rate increased from 4 to 17.0% at the main canal located at the end of the beneficiary area of Naju reservoir.

주제어

표/그림 (19)

그림 Fig. 1 Main irrigation canals and locations of water level gauges in beneficiary area of Naju reservoir
그림 Fig. 2 Flow chart of the process for evaluating re-distribution rate by SWMM
표 Table 1 Specifications of the main irrigation canals of Naju reservoir
그림 Fig. 3 Overall procedure to delineate the direct beneficiary area of Naju reservoir
그림 Fig. 4 Classification of water supply types to define direct beneficiary area of Naju reservoir
그림 Fig. 5 Example of constructing each node in SWMM model
표 Table 2 Input data of SWMM for Naju reservoir and beneficiary area
표 Table 3 Beneficiary area of each main irrigation canal after delination
그림 Fig. 6 Comparison of total and direct Naju beneficiary areas
그림 Fig. 7 Comparison of observed and simulated discharges in each main canal
그림 Fig. 8 Comparison between observed and simulated discharge
표 Table 4 Comparison between observed and simulated irrigation amounts in each gauging station
그림 Fig. 9 Comparison of water supply simluation results on past and present Geumcheon beneficiary areas due to redistribution of irrigation rate
표 Table 6 Comparison of supply rate to the each main irrigation canal by designed distribution and re-distributed rates
표 Table 5 Comparison of the ratio of fully supplied beneficiary areas of Geumchoen canal due to reduced water supply
그림 Fig. 10 Comparison of irrigated beneficiary areas due to the change of distribution rates
표 Table 7 Comparsion of travel time to the end of each main irrigation canal by designed distribution and re-distributed rates
그림 Fig. 11 Comparison the result of supply rate and travel time following to designed and re-distributed rate scenarios
표 Table 8 Comparison of the ratio of beneficiary area of each main irrigation canal which reached to the target ponding depth by designed distribution and re-distributed rates

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