Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Effective Water Resources Development by the Management of Sediment Deposit in Agricultural Reservoirs

농업용 저수지의 퇴적토사 관리를 통한 효율적 수자원 개발

  • 손광익 (영남대학교 토목도시환경공학부) ;
  • 심명필 (인하대학교 토목공학과)
  • Published : 2004.06.01
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Abstract

Effective management of water resources in Korea becomes very important in recent years. Especially, the management of reservoirs cannot be over emphasized. The status of sediment deposit and the dredging records of agricultural reservoirs were examined to find out at e reservoir retention capacity could be raised more than 10% of the total volume of reservoirs in Kyungbook Province. Sediment prediction methods were developed by combining the estimation mothods of geomorphological characteristics and upslope contribution area in GIS, The estimated sediment depsit amount were compared with the dredging records for three agricultural reservoires. It was found that the distributed model with ‘Flow accumulation’ and ‘Multiple Flow Direction Algorithm’ gives good prediction results for mountaineous area.

물이 부족한 우리나라는 최근 수자원의 효율적인 이용에 대한 중요성이 강조되고 있으며 특히 지금까지 개발된 저류시설을 통한 수자원의 효율적인 관리가 절대적으로 필요한 실정이다 효율적이고 합리적인 수자원관리와 그 이용 효과를 극대화하기 위해 경북지방의 농업용 저수지에 대한 저류용량과 퇴사량의 현황을 분석한 결과 농업용 저수지의 준설을 통하여 10% 이상에 이르는 저류용량을 추가적으로 확보할 수 있음을 확인하였다. 또한 GIS와 각종 토사발생량 예측기법을 활용하여 산정한 퇴사량을 실제 준설량과 비교 분석한 결과 분산모형과 다방향흐름알고리즘을 이용한 기법이 산지에 위치한 저수지 상류의 지형학적 특성을 잘 반영하며 타 기법에 비해 우수한 예측결과를 제시하는 것을 알 수 있었다.

Keywords

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