수로부 계측정보 기반 농업용 저수지의 관개용수 공급량 평가
Evaluation of the Irrigation Water Supply of Agricultural Reservoir Based on Measurement Information from Irrigation Canal
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초록
With the implementation of integrated water management policies, the need for information sharing with respect to agricultural water use has increased,necessitating the quantification of irrigation water supply using monitoring data. This study aims to estimate the irrigation water supply amount basedon the relationship between the water level and irrigation canal discharge, and evaluate the reliability of monitoring data for irrigation water supplyin terms of hydrology. We conducted a flow survey in a canal and reviewed the applicability of the rating curve based on the exponential and paraboliccurves. We evaluated the reliability of the monitoring data using a reservoir water balance analysis and compared the calculated results of the supplyquantity in terms of the reservoir water reduction rate. We secured 26 readings of measurement data by varying the water levels within 80% of thecanal height through water level control. The exponential rating curve in the irrigation canal was found to be more suitable than the parabolic curve. The irrigation water supplied was less than 9.3-28% of the net irrigation water from 2017 to 2019. Analysis of the reservoir water balance by applyingthe irrigation water monitoring data revealed that the estimation of the irrigation water supply was reliable. The results of this study are expected tobe used in establishing an evaluation process for quantifying the irrigation water supply by using measurement information from irrigation canals inagricultural reservoirs.
Abstract
With the implementation of integrated water management policies, the need for information sharing with respect to agricultural water use has increased,necessitating the quantification of irrigation water supply using monitoring data. This study aims to estimate the irrigation water supply amount basedon the relationship between the water level and irrigation canal discharge, and evaluate the reliability of monitoring data for irrigation water supplyin terms of hydrology. We conducted a flow survey in a canal and reviewed the applicability of the rating curve based on the exponential and paraboliccurves. We evaluated the reliability of the monitoring data using a reservoir water balance analysis and compared the calculated results of the supplyquantity in terms of the reservoir water reduction rate. We secured 26 readings of measurement data by varying the water levels within 80% of thecanal height through water level control. The exponential rating curve in the irrigation canal was found to be more suitable than the parabolic curve. The irrigation water supplied was less than 9.3-28% of the net irrigation water from 2017 to 2019. Analysis of the reservoir water balance by applyingthe irrigation water monitoring data revealed that the estimation of the irrigation water supply was reliable. The results of this study are expected tobe used in establishing an evaluation process for quantifying the irrigation water supply by using measurement information from irrigation canals inagricultural reservoirs.
참고문헌 (23)
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