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The purpose of this study is to evaluate the paddy irrigation efficiency using real-time water level monitoring data and intermittent irrigation model inGimjae, Dong-Jin irrigation district . For this study, the real-time water level data in Gimjae main canal and other secondary canals were collected from2012 to 2014 and converted to daily discharge using rating curve in each canal. From intermittent irrigation model in paddy, irrigation water requirementwas estimated and irrigation efficiency was calculated. The average amount of irrigation water supply per unit irrigation area was 1,011 mm in Gimjaemain canal for 12,749 ha irrigation area, 1,011 mm in the secondary canal of upper region and 1,470 mm in the secondary canal of lower region. Themedian irrigation loss was 43 % in Gimjae main canal, 25 % in secondary canal of upper region and 35 % in the secondary canal of lower region. Thelarger irrigation area is, the irrigation loss rates tend to decrease in secondary canals. Monthly median irrigation losses in upper region were 10 (June) –40 % (September) and those in lower region were 25 (May) to 40 % (April, June, August, and September). The results of canal management loss can beavailable as the basic data for irrigation water management and estimating guideline of optimal irrigation water supply to improve agricultural water useefficiencies.
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참고문헌 (17)
참고문헌 신청
Aly, A. M. / 2013 / Assessment of irrigation practices at the tertiary canal level in an improved system?a case study of Wasat area, the Nile Delta / Paddy Water Environment
Hong, E.M / 2015 / Decision support system for the real time operation and management of an agricultural water supply / Irrigation and Drainage
Irmak, S. / 2011 / Irrigation efficiency and uniformity, and crop water use efficiency
Kim, J. S. / 2005 / Delivery management water requirement for irrigation ditches associated with large-sized paddy plots in Korea / Paddy Water Environment 3 : 57 ~ 62
Koo, J. W. / 1982 / A study on the estimation of water loss rates in irrigation canals / Journal of the Korean Society of Agricultural Engineers 24 (2) : 56 ~ 66
Hong, E.M / 2015 / Decision support system for the real time operation and management of an agricultural water supply / Irrigation and Drainage
Irmak, S. / 2011 / Irrigation efficiency and uniformity, and crop water use efficiency
Kim, J. S. / 2005 / Delivery management water requirement for irrigation ditches associated with large-sized paddy plots in Korea / Paddy Water Environment 3 : 57 ~ 62
Koo, J. W. / 1982 / A study on the estimation of water loss rates in irrigation canals / Journal of the Korean Society of Agricultural Engineers 24 (2) : 56 ~ 66
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