하천 홍수위 저감을 위한 자연기반해법의 적용효과 분석
Analysis of the Effectiveness of Nature-based Solutions for River Flood Level Reduction
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초록
최근 기후변화의 영향으로 설계빈도보다 높은 강우가 발생하고, 하천설계 기준을 초과한 홍수 피해가 발생하고 있다. 따라서 자연기반해법(NbS, Nature-based Solutions)을 통해 지속가능한 하천관리와 환경 및 사회적 문제를 생태계의 서비스를 통해 해결하고자 하는 개념이 주목받고 있다. 이에 본 연구는 합천댐 하류의 황강을 대상으로 자연기반해법을 활용한 하천관리 방안의 홍수저감 효과를 정량적으로 분석하고자 하였다. 자연기반해법 기술에 포함되는 범람원 굴착(Floodplain excavation)과 제방후퇴(Dyke relocation)를 HEC-GeoRAS를 통해 황강의 홍수 위험지역에 적용하였으며, HEC-RAS의 부정류 흐름(Unsteady flow) 해석을 통해 하천 홍수위를 도출하였다. 그 결과, 홍수 부담이 큰 황강하류에서 약 8cm의 홍수위 저감효과를 확인할 수 있었다. 본 연구의 결과를 통해 하천관리 사업의 진행 시 기존의 하천관리 방법이 아닌 자연기반해법을 통한 관리 방안으로 도입할 수 있는 근거로 충분히 활용이 가능할 것으로 기대된다.
Abstract
EDue to climate change and urbanization, the localized heavy rainfall frequently exceeded a design storm rainfall and flood damage has occurred in South Korea. The concept of addressing sustainable river management and environmental and social issues through Nature-based Solutions (NbS) is gaining attention as it seeks to resolve these issues through ecosystem services. Therefore, in this study, the flood reduction effect by river management using NbS was quantitatively analyzed for the Hwang River, which is directly downstream of Hapcheon Dam, South Korea. Floodplain excavation and dyke relocation, which are methods of the NbS, were applied to the flood risk area of the Hwang River. As a result of analyzing the flood level of the river through the unsteady flow analysis of HEC-RAS, we obtained flood level reduction by 8 cm at the confluence of the Nakdong River. The results of this study can be expected to be sufficiently utilized as a basis for use as a management plan through NbS rather than the river management with grey infrastructure
참고문헌 (21)
- National Institute of Meteorological Sciences, "100 Years of Climate Change on the Korean Peninsula", ~ (2018)
- A Study of the Integrated Management of Flooding and Inundation According to the Unification of Water Management, "Lee, S. S.", ~ (2020)
- Ministry of Environment, "Korean River Catalog 2021", ~ (2021)
- 우효섭, "자연", 자연기반 특징(NNbF) - 자연기반해법(NbS)과 비교분석 및 국내적용성 평가, 2023, pp.10(2), 31~39[DOI]
- 우효섭, "물관리를 위한 자연기반해법과 유사개념들의 유형분류 및 체계", Ecology and Resilient Infrastructure, 7(1), pp.15~25 (2020), 응용생태공학회[DOI]
- Cho, D., "Ecological Perspective on Nature-Based Solutions : Current Status and Development Directions-Focused on Aquatic Ecosystem Ecological Restoration Projects", Water and the Future : Journal of the Korean Water Resources Association, 53(3), pp.27~34 (2020)
- Cohen-Shacham, E., "Core principles for successfully implementing and upscaling Nature-based Solutions", Environmental Science & Policy, 98, pp.20~29 (2019)
- Faivre, N., "Nature-Based Solutions in the EU: Innovating with nature to address social, economic and environmental challenges", Environmental Research, 159, pp.509~518 (2017)
- 김태형, "콘크리트 생산에 의한 CO2 배출량 평가 시스템 개발에 관한 연구", 콘크리트학회 논문집, 22(6), pp.787~796 (2010), 한국콘크리트학회
- Developing Climate-Resilient Urban Renewal Strategies: Flood Mitigation Effects and Implementation Approaches of Green Infrastructure, "Korea Institute for Environmental Policy Evaluation", ~ (2011)
- 지운, "자연성기반기술의 홍수완충구간 조성을 위한 입지 선정 방법에 관한 연구 - 대청댐 상류부터 용담댐 하류구간 사례 연구", Ecology and Resilient Infrastructure, 9(3), pp.131~140 (2022), 응용생태공학회
- Keesstra, S., "The superior effect of nature based solutions in land management for enhancing ecosystem services", Science of The Total Environment, 610(611), pp.997~1009 (2018)
- Chausson, A., "Mapping the effectiveness of nature-based solutions for climate change adaptation", Global Change Biology, 26(11), pp.6134~6155 (2020)
- National Institute of Forest Science, "Utilizing Nature-Based Solutions in the Forestry Sector for Climate Change Adaptation", ~ (2021)
- "European Commission & Directorate-General for Research and Innovation" (2022)[URL]
- WWF, "Natural and Nature-Based Flood Management: A Green Guide", ~ (2016)
- 이금진, "기술∙사회적 특성을 고려한 워터프론트 도시의 리질리언트 공간계획", 한국재난정보학회 논문집, 14(3), pp.352~359 (2018), 한국재난정보학회
- Schasfoort, F., "Room for the River" (2013), Deltafact
- The Basic Plan of the River in the Downstream of the Hwang River, "Ministry of Land, Infrastructure and Transport, Busan Regional Office of Land, Infrastructure and Transport", ~ (2016)
- UNESCO-IHE, "Tailor made collaboration-A clever combination of process and content", UNESCO-IHE, ~ (2013)
- Hydrologic Engineering Center, "HEC-RAS Hydraulic Reference Manual", US Army Corps of Engineers, ~ (2016)