• 제목/요약/키워드: irrigation reservoir

검색결과 315건 처리시간 0.03초

저수지 사통수문 개발 (Development of Reservoir Flood Gate)

  • 정광근;이광야;김해도;이종남
    • 한국농공학회:학술대회논문집
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    • 한국농공학회 2005년도 학술발표논문집
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    • pp.207-212
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    • 2005
  • It was convenient and the maintenance to do ease, to tilt the effort of one irrigation facility modernization by used to solar energy of reservoir flood gate and to reach and to lead in order to prepare one hand insufficiently it follows in leaving farming of the farming village and become older in age of the irrigation facility manager, it discussed one result. The reservoir flood gate which currently is developed but as improving the circular floodgate rain it does not measure the flow which is accurate is supplied from the reservoir it could not.

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Korean Impressions

  • Rodenhuis G.S.
    • 한국관개배수회지
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    • 18호
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    • pp.21-23
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    • 1997
  • From March 20 to 25, 1997, Dr. Rodenhuis, on the invitation of KCID, visited Korea for the International Symposium on the $\ulcorner$Efficient Operation and Management of Fresh Water Reservoir and Environmental Considerations on the Reservoir W

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현장조사 관개 기준에 따른 농업용 저수지 운영 분석 (Agricultural Reservoir Operation Analysis According to Surveyed Irrigation Guideline)

  • 김마가;최진용;방재홍;윤푸른;김귀훈
    • 한국농공학회논문집
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    • 제65권5호
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    • pp.37-49
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    • 2023
  • The drought risk has been increasing recently due to climate change causing the extreme climate to be more frequent. In order to supply agricultural water stably under drought, it is necessary to operate an agricultural reservoir in response to drought. To this end, it is crucial to establish appropriate drought response operation rules considering weather conditions and reservoir status. In the reservoir operation simulation, the supply amount differs from the actual reservoir supply for many reasons, including maintaining water levels for supply and accommodating farmers' requests. So, for a more realistic reservoir operation simulation, it is necessary to reflect the reservoir operation rules of the actual water management site. Therefore, in this study, through a survey, the standards for limitation of agricultural water supply applied to agricultural reservoirs in Korea were investigated, and the criteria for drought response reservoir operation (DRO) were established based on the survey. Then, the DRO was applied to the irrigation period for nine subject reservoirs. The applicability was evaluated by comparing the DRO result to the operation result of HOMWRS (Hydrological Operation Model for Water Resources System). The reservoir drought index, storage rate, and daily supply were compared for evaluation. From the result, DRO showed more stable operation results in most cases against drought as it has fewer days of water supply limitation and a somewhat reservoir storage rate which can be utilized for prolonged drought.

마둔저수지 농업유역의 관개 회귀수량 추정 (Estimation of Irrigation Return Flow on Agricultural Watershed in Madun Reservoir)

  • 김하영;남원호;문영식;방나경;김한중
    • 한국농공학회논문집
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    • 제63권2호
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    • pp.85-96
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    • 2021
  • Irrigation return flow is defined as the excess of irrigation water that is not evapotranspirated by direct surface drainage, and which returns to an aquifer. It is important to quantitatively estimate the irrigation return flow of the water cycle in an agricultural watershed. However, the previous studies on irrigation return flow rates are limitations in quantifying the return flow rate by region. Therefore, simulating irrigation return flow by accounting for various water loss rates derived from agricultural practices is necessary while the hydrologic and hydraulic modeling of cultivated canal-irrigated watersheds. In this study, the irrigation return flow rate of agricultural water, especially for the entire agricultural watershed, was estimated using the SWMM (Storm Water Management Model) module from 2010 to 2019 for the Madun reservoir located in Anseong, Gyeonggi-do. The results of SWMM simulation and water balance analysis estimated irrigation return flow rate. The estimated average annual irrigation return flow ratio during the period from 2010 to 2019 was approximately 55.3% of the annual irrigation amounts of which 35.9% was rapid return flow and 19.4% was delayed return flow. Based on these results, the hydrologic and hydraulic modeling approach can provide a valuable approach for estimating the irrigation return flow under different hydrological and water management conditions.

유지관리를 위한 관개용 저수지의 등급화 (A Grading of Irrigation Reservoir for maintenance and management)

  • 김선주;박재흥
    • 한국농공학회:학술대회논문집
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    • 한국농공학회 1998년도 학술발표회 발표논문집
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    • pp.47-58
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    • 1998
  • This study is to try grading size and economic values in irrigation reservoirs for the purpose to maintenance management valuation technique. This use main irrigation reservoirs which are managed by Farmland Improvement Associations(FIA) to estimate grading of irrigation reservoirs for maintenance and management. In order to make efficient management on irrigation reservoirs, this study will be a basic data at a decision ranking of investment which are followed by conservation and maintenance management.

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기후변화 대응방안 수립을 위한 농업용 저수지 이수안전도 평가 (An Irrigation Reliability Assessment of Agricultural Reservoir to Establish Response Plan of Future Climate Change Adaptation)

  • 권형중;남원호;최경숙
    • 한국농공학회논문집
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    • 제62권2호
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    • pp.111-120
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    • 2020
  • This study assessed the reliability of the agricultural water supply based on future climate change scenarios, and suggested plans to improve the reliability in order to promote the adaptability of irrigation water in agricultural reservoirs to climate change. The assessment of agricultural water supply reliability was performed on reservoirs which had a lower water quantity than their design basis and which had recently been subject to drought. In other words, from the irrigation districts of main intake works among the reservoirs managed by the Korea Rural Community Corporation, 1~2 districts in each province-that is, a total of 13 districts -that were recently designated as a district for securing agricultural water (drought prevention district) were selected. Climate change scenarios were applied to the selected districts to analyze their future water supply reliability compared to the current level. All districts selected showed a drought frequency of 4 years or shorter, which demonstrated the need to establish climate change response plans. As plans for responding to climate change, a plan that utilizes supplemental intake works to reduce the area of the irrigation districts of main intake works, and another one that increases the capacity of main intake works were adopted to reanalyze their water supply reliability. When the area of the irrigation districts of main intake works was reduced by about 30~40%, the drought frequency dropped to more than 10 years, securing the reliability of water supply. To secure the reliability by increasing the capacity of main intake works, it was calculated that about 19,000~2,400,000 tons need to be added to each reservoir. In addition, climate change response plans were suggested to improve the reliability of the water supply in each district based on the results of economic analysis.

최적화기법을 이용한 기존 농업용 저수지에서의 부존 수력발전량 추정 (Optimization Technique for Estimation of Potential Hydroelectric Energy at Existion Ahricultural Reservoir)

  • 안태진;류희정;박정응
    • 한국수자원학회논문집
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    • 제32권3호
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    • pp.281-289
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    • 1999
  • 기존 농업용 댐에서의 소수력발전 사업은 기존 저수지로부터의 방류량을 효율적으로 이용함으로써 전력의 추가 확보에 기여할 수 있다. 본 연구에서는 기존 농업용 댐에서의 부존 수력발전량을 추정하기 위하여 관개용수를 근거로 한 관개수량의 유황, 저수지 발전모의운영 및 비선형계획 모형을 적용하여 기존 농업용 저수지에서의 부존 수력발전량을 추정하였다. 비선형계획법은 소요관개용수 제약조건아래 최대발전량을 찾는 것으로 하였다. 유입량과 관개용수량이 주어진 표본 저수지에서, 채택된 방법 중 최적화 모형의 최적해에 의한 발전량이 가장 많았으며 저수지의 유입량에 관한 발전용수도 최적화 모형이 가장 많이 사용하였음을 알 수 있었다. 저수지 관리수위 상승으로 확보되는 저수량에 따른 발전량의 변화를 분석하기 위하여 연평균발전량을 추정한 결과, 관리수위 증가에 의한 발전량의 증가는 미미함을 알 수 있었다. 본 연구에서 제안한 부존발전량 추정 절차와 최적화 모형은 기존 농업용댐의 부존 발전량 추정에 적용할 수 있으며, 소수력발전 사업 경제성분석에 필요한 기초자료로 활용될 수 있을 것으로 판단된다.

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GIS를 이용한 관개용 저수지의 토사유실량 산정에 관한 연구 (Assessment of Soil Loss in Irrigation Reservoir based on GIS)

  • 박우식;홍순헌;안창환;최현
    • 한국측량학회지
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    • 제31권6_1호
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    • pp.439-446
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    • 2013
  • 본연구는 관개용 저수지의 토사유실량을 산정하기 위해 GIS를 이용하였다. 토사유실로 인한 재해는 산지녹화사업의 성공으로 인하여 자연적인 토사재해는 급감하고 있으나, 최근의 기상이변에 따른 국지성 호우와 인위적인 개발사업은 토사재해발생의 직접적인 요인으로 작용하여 높은 재해위험도를 나타내고 있다. 이를 방재하기 위하여 다양한 기법과 기술을 사용하여 토사유실에 따른 영향을 예측하고 있으나 토사유실에 따른 재해는 잠재적인 요인과 직접적인 요인의 복잡한 상호작용으로 발생되고 있어 이를 명확하게 규명할 수 있는 예측방법의 신뢰도는 상대적으로 낮은 편이다. 토사유실에 대한 복잡한 상호작용을 명확하게 규명하기 위해서는 대상지역의 지형정보학적 접근이 필수적임으로 본 연구에서는 수치지도와 각종 수문지형인자를 입력매개변수로 하는 GIS을 이용하여 토사유실에 대한 영향을 분석함으로써 관개용 저수지 토사유실에 대한 예측의 신뢰도를 높일 수 있는 방안을 마련하는데 그 목적이 있다.

광역 용수계통을 고려한 농업용수 필요수량의 산정 - 섬진강댐 수혜구역을 중심으로 - (Estimation of Agricultural water demand considering multi-wide water supply system - On irrigation area of Sumjingang-dam -)

  • 문종원;정진호;장중석
    • 한국농공학회:학술대회논문집
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    • 한국농공학회 2003년도 학술발표논문집
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    • pp.423-426
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    • 2003
  • The purpose of this paper is to estimate Agricultural water demand at irrigation area of sumjin reservoir, the Dongjin River basin, which consist of multi-wide water supply system and complicated irrigation channel and supplementary irrigation facilities.

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관개용 저수지의 일별 사용량 조사 분석 (Monitoring and Analyses of Daily Water Uses from Irrigation Reservoirs)

  • 강민구;박승우;임상준
    • 한국농공학회:학술대회논문집
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    • 한국농공학회 1999년도 Proceedings of the 1999 Annual Conference The Korean Society of Agricutural Engineers
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    • pp.111-116
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    • 1999
  • The daily irrigation water intakes from five reservoirs were measured and the water management characteristics analyzed . During the irrigation seasons in 1998 , the total water supply rates ranged from 534 to 864 mm, and thedelivery losses varied from5 to 17 pervent. Major factors affecting the water supply rates were rice transplanting and water management , and rainfall distributions during the growing seasons. The consumptive uses and effective rainfall from each researvoir were compared satisfactorily with the simulated results from the Daily Irrigation Reservoir Operation Model , DIROM.

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