수리권을 고려한 만경강유역 수환경변화에 대한 연구 = A Study on Change of Water Environment in the Mangyeong River Basin Considering Water Rights

다국어 초록 (Multilingual Abstract)

Standard of water rights in domestic rivers is clearly suggested, but detailed intake water volume of river about approved intake water volume is not understood, so various problems of maintaining river ecosystem have arose. In addition, change of efflux in basin and non-point pollutant source has a major influence on change of water environment in river with a problem of water rights according to change of rainfall pattern because of the effect of hydrological factors by climatic change, so quantitative analysis is needed.
To understand a problem in river by water rights of vague standard in rivers of South Korea quantitatively, this study understood basic present conditions of basin such as flux, water quality, and water utilization in the Mangyeong River basin, an object basin, applied RCP 4.5 among climatic change scenarios, established a scenario through change of water intake rate of use amount of approved water rights, and applicable return water, and analyzed excess rate of target water quality and expected efflux with load duration curve by using revised and verified SWAT model.
As a result, a difference between consideration and non-consideration of return water has a considerable influence on excess rate of pollution loading amount, and if intake water volume is little in all expected points, excess rate of pollution loading amount decreases steadily. If return water rate by land use is established by lively study of return water quantity, and more accurate data of water usage is applied through improvement of water rights of vague standard, accuracy and reliability of study about change of water environment such as future plan of water supply and prediction of sulfur change will be raised.

목차 (Table of Contents)

• 제 1 장 서 론 1
• 1.1 연구의 배경 및 목적 1
• 1.2 연구의 내용 및 방법 1
• 1.3 연구의 범위 2
• 제 2 장 이론적 배경 3
• 2.1 수리권 체계 3
• 2.1.1 관행수리권 3
• 2.1.2. 허가수리권 3
• 2.2 기후변화 시나리오의 반영 4
• 2.3 회귀수량 6
• 2.4 부하지속곡선 6
• 2.5 유역유출 모형 구축 8
• 2.5.1 SWAT 모델의 적용 8
• 제 3 장 연구 방법 13
• 3.1 대상 유역의 개요 13
• 3.1.1 유역의 개황 13
• 3.1.2 유역 수질 현황 16
• 3.1.3 농업 수리시설물 현황 23
• 3.1.4 하천유지유량 현황 25
• 3.2 SWAT 모형 입력자료 29
• 제 4 장 결과 및 고찰 37
• 4.1 SWAT 모형의 검·보정 37
• 4.1.1 모형의 검․보정 결과 41
• 4.2 취수량과 회귀수고려에 따른 예측 시나리오 46
• 4.3 부하지속곡선을 활용한 시나리오별 오염부하량 초과율 분석 46
• 4.3.1 C1 : 회귀수 고려 + 사용허가량의 전량취수 48
• 4.3.2 C2 : 회귀수 고려 + 사용허가량의 80%취수 51
• 4.3.3 C3 : 회귀수 고려 + 사용허가량의 60%취수 54
• 4.3.4 C4 : 회귀수 고려 + 사용허가량의 40%취수 57
• 4.3.5 C5 : 회귀수 미고려 + 사용허가량의 전량취수 60
• 4.3.6 C6 : 회귀수 미고려 + 사용허가량의 80%취수 63
• 4.3.7 C7 : 회귀수 미고려 + 사용허가량의 60%취수 66
• 4.3.8 C8 : 회귀수 미고려 + 사용허가량의 40%취수 69
• 4.4 회귀수 고려, 미고려에 따른 예측 결과 72
• 4.5 취수량 조절에 따른 예측 결과 74
• 제 5장 결론 77
• 참고문헌 79