• 제목/요약/키워드: River basin management

검색결과 517건 처리시간 0.038초

도시유역의 하천유지용수 산정에 관한 연구 (A Study on the Estimation of River Management Flow in Urban Basin)

  • 이영화
    • 한국환경과학회지
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    • 제5권3호
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    • pp.377-385
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    • 1996
  • This study aims at the estimation of a river management flow in urban basin analyzing Sinchun basin to be the tributary of Kumho river basin. The river management flow has to satisfy a low flow as natural flow and an environmental preservation flow estimated by a dilution flow to satisfy a target water quality in drought flow. Therefore for the estimation of a river management flow in Sinchun in this study, first Tank model as a basin runoff model estimates a low flow, a drought flow from a flow duration curve in Sinchun, second QUAL2E model as water quality model simulates water quality in Sinchun and estimates environmental preservation flow to satisfy a target water qua%its, BOD 8 mg/l by a dilution flow derived from Kumho river, Nakdong river and around water. And the river management flow is estimated by addition of a use flow and a loss flow to more flow between a low-flow and an environmental preservation flow.

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INTEGRATED WATER RESOURCES AND QUALITY MANAGEMENT SYSTEM USING GIS/RS TECHNOLOGIES

  • Shim, Kyu-Cheoul;Shim, Soon-Bo;Lee, Yo-Sang
    • Water Engineering Research
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    • 제3권2호
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    • pp.85-92
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    • 2002
  • There has been continuous efforts to manage water resources for the required water quality criterion at river channel in Korea. However, we could obtain the partial improvement only for the point sources such as, waste waters from urban and factory site through the water quality management. Therefore, it is strongly needed that the best management practice throughout the river basin fur water quality management including non-point sources pollutant loads. This problem should be resolved by recognizing the non-point sources pollutant loads from the upstream river basin to the outlet of the basin depends on the landuse and soil type characteristics of the river basin using the computer simulation by a distributed model based on the detailed investigation and application of Geographic Information System (GIS). The purpose of this study is consisted of the three major distributions, which are the investigation of spread non-point sources pollutants throughout the river basin, development of the base maps to represent and interpret the input and outputs of the distributed simulation model, and prediction of non-point sources pollutant loads at the outlet of a up-stream river basin using Agricultural Non-Point Sources Model (AGNPS). For the validation purpose, the Seom-Jin River basin was selected with two flood events in 1998. The results of this application showed that the use of combined a distributed model and an application of GIS was very effective fur the best water resources and quality management practice throughout the river basin

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영산강·섬진강 수계 효율적 물관리를 위한 유역관리 시스템 구축 (Establishment of Watershed Management System for Efficient Water Management in the Yeongsan and Seomjin River Basin)

  • 정희정;정재운;김갑순;박하나;임병진;허유정;이준배
    • 한국환경농학회지
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    • 제31권2호
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    • pp.200-204
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    • 2012
  • BACKGROUND: Recently, the project for improvement of water quality and preservation of the Yeongsan and Seomjin river basin was actively promoted. However, the publicity for many results of the project is not actively done, thus they are rarely used. Furthermore, there are not sufficient information about the projects preformed by other research institutions. Therefore, the watershed management system for efficient water management is needed in the Yeongsan and Seomjin river basin. CONCLUSION: Firstly, establishment of the Yeongsan and Seomjin river basin management research center, Secondly, construciton of wed-based water management research network. These results will serve as a basic data for efficient water management.

한국과 미국의 유역관리 비교평가 연구 (Comparative Evaluation of River Management in South Korea and the United States)

  • 박성제
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2005년도 학술발표회 논문집
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    • pp.492-496
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    • 2005
  • 하천은 정치적, 행정적, 사회적 구분을 자유자재로 넘나들고 물과 토지는 강한 연관성을 가지고 있다. 물과 하천의 이러한 특성들은 수자원을 효율적으로 관리하는데 큰 제약요소로 간주되어 왔다. 따라서 수자원을 유역이라는 한정된 범위 내에서 모든 인간활동과 자연현상을 통합적으로 고려한다는 개념은 바람직한 관리방안으로 알려지고 있다. 유역관리는 이러한 관점에서 물을 경제적이고 공평하게 관리하고 분배하여 수자원에 대한 장기적이고 지속가능한 해결방안을 마련하는 것이다. 본 연구는 유역관리에 대한 한국과 미국의 차이점을 파악하기 위하여 크게 세 가지 부분으로 이루어져 있다. 첫 번째 부분은 한국에서 1960년대 이후 시작된 유역관리가 1990년대에 수질관리 차원의 대유역관리로 진행되는 과정을 고찰하였다. 두 번째에는 미국에서 대유역관리가 실종되고 소유역관리가 확산되는 과정을 밝혔다. 마지막으로 유역관리에 대한 한국과 미국의 전개과정을 비교검토하고 그 차이점을 평가하였다. 미국에서는 대유역관리에 대한 관심이 쇠퇴한 반면에 수문학적 지역으로서의 소유역이 주요 관심대상으로 떠오르고 있다. 이에 반하여 우리나라에서는 현재 정치적 차원의 물관리체제개편과 사회적 차원의 강살리기운동이 동시에 전개되고 있다. 따라서 우리나라가 당면한 유역관리의 과제는 미국보다도 더욱 복합적이다.

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Soil Loss Vulnerability Assessment in the Mekong River Basin

  • Thuy, Hoang Thu;Lee, Giha
    • 한국지반환경공학회 논문집
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    • 제18권1호
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    • pp.37-47
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    • 2017
  • The Mekong River plays an extremely important role in Southeast Asia. Flowing through six countries, including China, Myanmar, Thailand, Laos PDR, Cambodia, and Vietnam, it is a site of great biological and ecological diversity and the habitat of numerous species of fish. It also supports a very large population that lives along the river basin. Therefore, much attention has been focused on the giant Mekong River Basin, particularly, its soil erosion and sedimentation problems. In fact, many methods have been used to calculate and simulate these problems. However, in the case of the Mekong River Basin, the available data is limited because of the extreme size of the area (about $795,000km^2$) and lack of equipment systems in the countries through which the Mekong River flows. In this study, we applied the Universal Soil Loss Equation (USLE) model in a GIS (Geographic Information System) framework to calculate the amount of soil erosion and sediment load during the selected period, from 1951 to 2007. The result points out dangerous areas, such as the Upper Mekong River Basin and 3S Basin (containing the Sekong, Sesan, and Srepok Rivers) that are suffering the serious consequences of soil erosion problems. Moreover, the present model is also useful for supporting river basin management in the implementation of sustainable management practices in the Mekong River Basin and other basins.

Water Resources Planning for the 2S River Basin in Viet Nam

  • Ko, Ick Hwan;Choi, Byung-Man;Kim, Jeong-kon;Pi, Wan-Seop;Shin, Jae-Sung
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2020년도 학술발표회
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    • pp.78-78
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    • 2020
  • The Se San and Srepok river basins (2S) are the two major tributaries of the Mekong River, both of which originate in the territory of Viet Nam and flow to Cambodia to meet at Stung treng with the Sekong river (originating in Lao PDR) to form the 3S river basin before joining the Mekong mainstream. In the territory of Viet Nam, the 2S river basins are located in the Central Highlands including 5 provinces, arranged by geographical location from north to south namely Kon Tum, Gia Lai, Dak Lak, Dak Nong and Lam Dong. This is a region with a very important strategic position in terms of economy, politics and defense for the whole country with many potential advantages for economic development. However, the limited and vulnerable basin water resources are under the pressure of socio-economic development in line with increasing water demands for various sectors. In order to overcome the water management challenges, a long-term water resources planning has conducted to support the 2S River Basin Committee (RBC) in effective planning and operation as part of the WB Mekong-Integrated Water Resources Management (IWRM) Project. This paper introduces the outline and progress of the river basin planning using analytical DSS toolkits to analyze, evaluate and formulate the planning options.

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IMPLEMENTATION OF A DECISION SUPPORT SYSTEM FOR INTEGRATED RIVER BASIN WATER MANAGEMENT IN KOREA

  • Shim Soon-Do;Shim Kyu-Cheoul
    • Water Engineering Research
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    • 제5권4호
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    • pp.157-176
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    • 2004
  • This research presents a prototype development and implementation of Decision Support System (DSS) for integrated river basin water management for the flood control. The DSS consists of Relational Database Management System, Hydrologic Data Monitoring System, Spatial Analysis Module, Spatial and Temporal Analysis for Rainfall Event Tool, Flood Forecasting Module, Real-Time Operation of Multi Reservoir System, and Dialog Module with Graphical User Interface and Graphic Display Systems. The developed DSS provides an automated process of alternative evaluation and selection within a flexible, fully integrated, interactive, centered relational database management system in a user-friendly computer environment. The river basin decision-maker for the flood control should expect that she or he could manage the flood events more effectively by fully grasping the hydrologic situation throughout the basin.

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금강수계의 물환경기준과 목표수질 설정방안 (Establishment of Water Quality Standards and Water Quality Target in the Geum-River Basin)

  • 이상진
    • 한국물환경학회지
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    • 제29권3호
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    • pp.438-442
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    • 2013
  • According to Geum-River restoration project, given conditions for management of water environment in the Geum-River were changed. Because of those changes, this study was investigated the establishment of water quality standards and water quality target in the Geum-River basin. For management of water environment in the Geum-River, the sub-basins and watersheds are newly divided and the water quality and ecosystem standards in the sub-basins are reestablished. Considering the consistency of water environment policy and legal system, the legal name of sub-basins and watersheds are unified. TMDL (total maximum daily load) should be implemented in the sub-basin where exceeds the water quality standards and the number of water pollutant among the water quality parameters which exceeds the water quality standards are extremely minimized. The water quality target of water pollutant for implementation of TMDL should be established same or higher concentration of water quality standards.

EU Water Framework Directive-River Basin Management Planning in Ireland

  • Earle, R.;Almeida, G.
    • Environmental Engineering Research
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    • 제15권2호
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    • pp.105-109
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    • 2010
  • The European Union (EU) Water Framework Directive (WFD) (2000/60/EC) was transposed into Irish law by Statutory Instrument Nos. 722 of 2003, 413 of 2005 and 218 of 2009, which set out a new strategy and process to protect and enhance Ireland's water resources and water-dependent ecosystems. The Directive requires a novel, holistic, integrated, and iterative process to address Ireland's natural waters based on a series of six-year planning cycles. Key success factors in implementing the Directive include an in-depth and balanced treatment of the ecological, economic, institutional and cultural aspects of river basin management planning. Introducing this visionary discipline for the management of sustainable water resources requires a solemn commitment to a new mindset and an overarching monitoring and management regime which hitherto has never been attempted in Ireland. The WFD must be implemented in conjunction with a myriad of complimentary directives and associated legislation, addressing such key related topics as flood/drought management, biodiversity protection, land use planning, and water/wastewater and diffuse pollution engineering and regulation. The critical steps identified for river basin management planning under the WFD include: 1) characterization and classification of water bodies (i.e., how healthy are Irish waters?), 2) definition of significant water pressures (e.g., agriculture, forestry, septic tanks), 3) enhancement of measures for designated protected areas, 4) establishment of objectives for all surface and ground waters, and 5) integrating these critical steps into a comprehensive and coherent river basin management plan and associated programme of measures. A parallel WFD implementation programme critically depends on an effective environmental management system (EMS) approach with a plan-do-check-act cycle applied to each of the evolving six-year plans. The proactive involvement of stakeholders and the general public is a key element of this EMS approach.

지표수 지하수 연계운영에 의한 갈수기 지표수-수자원관리 (Conjunctive Management Considering Stream-Aquifer Systems for Drought Season)

  • 차기욱;김우구;신용노
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2008년도 학술발표회 논문집
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    • pp.389-394
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    • 2008
  • The purpose of this research was to develop a methodology to determine whether conjunctive surface water and groundwater management could significantly reduce deficits in a river basin with a relatively limited alluvial aquifer. The Geum River basin is one of major river basins in South Korea. The upper region of the Geum River basin is typical of many river basins in Korea where the shape of river basin is narrow with small alluvial aquifer depths from 10m to 20m and where most of the groundwater pumped comes quickly from the steamflow. The basin has two surface reservoirs, Daecheong and Yongdam. The most recent reservoir, Yongdam, provides water to a trans-basin diversion, and therefore reduces the water resources available in the Geum River basin. After the completion of Yongdam reservoir, the reduced water supply in the Geum basin resulted in increasing conflicts between downstream water needs and required instream flows, particularly during the low flow season. Historically, the operation of groundwater pumping has had limited control and is administered separately from surface water diversions. Given the limited size of the alluvial aquifer, it is apparent that groundwater pumping is essentially taking its water from the stream. Therefore, the operation of the surface water withdrawals and groundwater pumping must be considered together. The major component of the conjunction water management in this study is a goal-programmin g based optimization model that simultaneously considers surface water withdrawals, groundwater pumping and instream flow requirements. A 10-day time step is used in the model. The interactions between groundwater pumping and the stream are handled through the use of response and lag coefficients. The impacts of pumping on streamflow are considered for multiple time periods. The model is formulated as a linear goal-programming problem that is solved with the commercial LINGO optimization software package.

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