다목적댐 건설에 따른 하천의 생태 및 수문환경 변화
Hydrological and Ecological Alteration of River Dynamics due to Multipurpose Dams
0
조회
0
다운로드
8
인용
0
참고문헌
키워드
초록
자연적 기후변화와 댐 건설로 인한 인위적 수문환경의 변화로 인하여 하천의 유황(flow regime) 변화가 발생하며, 이러한 유황의 변화는 하천의 생태계뿐만 아니라 하천의 물리적 구조와 어류서식처 등에도 심각한 변화를 야기한다. 본 연구에서는 감천유역의 부항댐 건설로 인하여 나타난 수문특성변화와 동시에 하천의 생태건강성 및 수질, 하천단면 변화를 분석하였다. 감천의 유황 변화를 정량적으로 파악하기 위해 수문변화지표(Indicators of Hydrologic Alteration, IHA)에 의한 분석 결과, HA(Hydrologic Alteration)가 대부분 ±1 이상으로 댐 건설 후 하천생태계에 다양한 변화가 발생한 것으로 판단된다. 또한, 생태건강성등급 및 수질은 각 요소마다 상이한 반응이 나타났으며, 하천의 하상 및 단면의 경우에는, 댐 건설 후에 하상 단면의 저하가 뚜렷하게 나타났다. 본 연구의 성과는 하천의 유황 변화에 의한 하천생태계의 변화를 평가하기 위한 효율적인 방법으로 활용될 수 있을 것으로 기대된다.
Abstract
Alteration in the flow regime of rivers are caused by natural climate change and the changes in anthropogenic hydrological environment due to dam construction. These changes in flow regime cause serious changes not only in the fresh water ecosystems of the rivers but also in the physical structures and fish habitats of the streams. In this study, the alteration in the hydrological characteristics of the Gam river basin due to Buhang dam construction and the changes in ecological health condition, water quality, and river cross-section were analyzed. As a result of analysis by indicators of hydrologic alteration (IHA) to quantitatively change the flow regime of Gam river, HA (Hydrologic Alteration) is more than ± 1 and various changes have occurred in the river ecosystem after Buhang dam construction. In addition, ecological health condition and water quality showed different response for each element, and in the case of riverbeds and channel cross-sections, the degradation of channel bed was obviously monitored after dam construction. The results of this study are expected to be used as an efficient method for evaluating changes in stream ecosystems caused by stream regime changes.
참고문헌 (24)
- Andrew J. Boulton, "An overview of river health assessment: philosophies, practice, problems and prognosis", Freshwater Biology, 41(2), pp.469~479 (1999), Wiley[DOI]
- S.Anders Brandt, "Classification of geomorphological effects downstream of dams", CATENA, 40(4), pp.375~401 (2000), Elsevier BV[DOI]
- Gamcheon water environment management plan('14~'15), "Daegu Regional Environmental Office", ~ (2013)
- Assessment of Hydrologic Alteration within Ecosystem in a Sahalian Shallow Lake: Lake Guiers, Senegal, "Djiby, S", Modern Environmental Science and Engineering, Research Center for Limnology, Indonesian Institute of Sciences, 200~216 (2017)
- Edwards, DC, "Characteristics of 20th century drought in the United States at multiple time scales", Master, Department of Atmospheric Science, pp.1997
- Rebeca González-Villela, "Effects of climate change on the environmental flows in the Conchos River (Chihuahua, Mexico)", Ecohydrology & Hydrobiology, 18(4), pp.431~440 (2018), Elsevier BV[DOI]
- Assessment of hydrologic alteration software, "Hersh, ES", Bureau of Engineering Research and University of Texas at Austin, ~, pp.CRWR Online report 06-11 (2006)
- Hong, HP, "Drought Risk Assessment Considering Future Socio-Hydrologic Condition and Climate Change", Master, pp.2019
- 홍일, "기후변화가 하천 유황과 어류 물리서식처에 미치는 영향 평가", 대한토목학회논문집(국문), 39(1), pp.33~44 (2019), 대한토목학회[DOI]
- "Korea Institute of Hydrological Survey (KIHS)" (2017)[URL]
- 이주헌, "우리나라 과거 가뭄사상의 정량적 특성 분석 -5대강 유역의 가뭄빈도분석을 중심으로-", 한국수자원학회 논문집, 48(12), pp.1011~1021 (2015), 한국수자원학회
- Kairong Lin, "Inter- and intra- annual environmental flow alteration and its implication in the Pearl River Delta, South China", Journal of Hydro-environment Research, 15, pp.27~40 (2017), Elsevier BV[DOI]
- McKee, TB, "The relationship of drought frequency and duration to time scales", Proceedings of the 8th Conference on Applied Climatology, 17(22), pp.179~183 (1993), American Meteorological Society
- McKee, TB, "Drought monitoring with multiple time scales", Proceedings of the 9th Conference on Applied Climatology, pp.233~236 (1995), American Meteorological Society
- Biomonitering Survey and Assessment Manual, "National Institute of Environmental Research", Ministry of Environment, ~ (2016)
- Poff, NL, "The natural flow regime : a paradigam for river conservation and restoration", Bioscience, 47(11), pp.769~784 (1997)
- BRIAN RICHTER, "How much water does a river need?", Freshwater Biology, 37(1), pp.231~249 (2003), Wiley[DOI]
- Brian D. Richter, "A Method for Assessing Hydrologic Alteration within Ecosystems", Conservation Biology, 10(4), pp.1163~1174 (1996), Wiley[DOI]
- 신광섭, "공주대교 상·하류구간에 대한 흐름특성과 하상변동 모의", 한국방재학회논문집, 8(2), pp.119~127 (2008), 한국방재학회
- Indicators of Hydrologic Alteration. Version 7.1 User’s Manual, "The Nature Conservancy", ~ (2009)
- "Water Environment Information System" (2003)[URL]
- "Water Resources Management Information System (WAMIS)" (2011)[URL]
- Standardized Precipitation Index. User Guide, "World Meteorological Organization", ~, pp.Report 1090 (2012)
- Yoon, TY, "A Study on Analysis of Environmental Flow on Agricultural Reservoir by Climate Change", Master, pp.2017