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논문 기본 정보

자료유형
학술저널
저자정보
AHN, SungSick (Department of Civil Engineering, Chung-Ang University) Kim, Jin-Hong (Department of Civil Engineering, Chung-Ang University)
저널정보
(사)국제문화기술진흥원 The International journal of advanced culture technology The International journal of advanced culture technology 제6권 제3호
발행연도
2018.1
수록면
178 - 186 (9page)

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초록· 키워드

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Generally, in terms of the development of irrigation scheme, the efficient water resource management that supplies the irrigation water in consideration of the required time and accurate quantity to grow the crop should be conducted. The water resource assessment should precede to supply the irrigation water efficiently. The water resources assessment is divided into the water requirement analysis and the water availability assessment. In case of Korea, the major crop is paddy rice unlike crops of Africa, such as sugarcane, maize, and cassava, etc. Because it is not familiar with the method for upland irrigation development in tropical area, it needs to know the water resources assessment for irrigation scheme development about these crops. The Natama Scheme in Chiradzulu District of the Southern Malawi was selected as study area, which has tropical climate. From the collected meteorological data, the evapotranspiration was analyzed by Penman-Monteith Method and the effective rainfall was analyzed by USDA Soil Conservation Service Method. This study displays the results that for study area, the evapotranspiration varies from 2.80 mm/day to 5.51 mm/day and the effective rainfall varied from 2.1mm to 149.0mm. According to the selected crop (Green Maize, Dry Maize), the unit water requirement (UWR) and water demand (WD) considering the irrigation efficiency, irrigation time and irrigation area were estimated to be $0.00122m^3/s/ha$ and $0.0122m^3/s$ respectively. For the water availability assessment, the runoff of Natama scheme was calculated by specific yield method. The water availability was evaluated through reviewed differences of discharge between $Q80_{intake}$ and Total WD, and the irrigation water can be supplied sufficiently in the existing 10ha of Natama scheme. As a result of reviewing the extensibility of irrigable area, total WD of scheme is $0.02313m^3/s$, and $Q80_{intake}$ is $0.02387m^3/s$ ($Q80_{intake}$ > Total WD). Therefore, Natama scheme can be extended from 10 ha to 17 ha in the dry season in consideration of the $Q80_{intake}$.
#Unit water requirement #Water availability assessment #Upland irrigation in tropical climate

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참고문헌 (7)

참고문헌 신청
Jyotsna R. K. / 2017 / Crop Water Requirement and Irrigation Scheduling of Some Selected Crops Using CROPWAT 8. 0 / International Journal of Civil Engineering and Technology 8(5):342~349 google schola A. W. Abdelhadi / 2000 / Estimation of crop water requirements in arid region using Penman-Monteith equation with derived crop coefficients: a case study on Acala cotton in Sudan Gezira irrigated scheme / Agricultural Water Management 45:203~214 google schola Sunil K. / 2017 / Reference Evapotranspiration(ETo)and Irrigation Water Requirement of Different Crops in Bihar / Journal of Agrometeorology 19(3):238~241 google schola Yoo, S. H. / 2012 / Analysis of Design Water Requirement of paddy rice using frequency analysis affected by climate change in South Korea / Agricultural Water Management 112:33~42 google schola C. S. De Silva / 2007 / Predicting the impacts of climate change-A case study of paddy irrigation water requirements in Sri Lanka / Agricultural Water Management 93:19~29 google schola

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