SWAT을 이용한 유역 내 토지 피복 변화에 따른 시화호 유입 퇴적물 양 모의
Simulation of Sediment Yield into Lake Shihwa Considering Land Cover Change within the Watershed Using SWAT Model
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Understanding sediment flux from the inflowing rivers to Lake Shihwa is crucial for the integrated management of the nearby coastal areas. This study simulated the sediment yield using the Soil and Water Assessment Tool (SWAT) from 1975 to 2010 to understand the temporal variation of sediment input into the lake. The average sediment yield during the period was 69.34ton/ha/year, and it was found that precipitation conditions had a greater impact on sediment yield than land cover status. The Banwolcheon and Donghwacheon watersheds contributed to approximately 60% of the total sediment load. From 1994 to 2010, before the operation of a tidal power plant, Hwajeongcheon, Ansancheon, Banwolcheon, Donghwacheon, and Namjeoncheon contributed to sediment deposition in the lake at rates ranging from 0.78 to 1.93cm/year. However, this result is interpreted as reflecting uncertainties in channel deposition in the downstream reach, as well as limitations of the SWAT model in capturing water level fluctuations due to the operation of a watergate. Despite the limitation of not undergoing calibration and validation due to insufficient continuous data for use, this study has significance in discussing the major source area of sediment by considering environmental changes within the watershed, with different land cover maps being used as input data for each period.
Abstract
Understanding sediment flux from the inflowing rivers to Lake Shihwa is crucial for the integrated management of the nearby coastal areas. This study simulated the sediment yield using the Soil and Water Assessment Tool (SWAT) from 1975 to 2010 to understand the temporal variation of sediment input into the lake. The average sediment yield during the period was 69.34ton/ha/year, and it was found that precipitation conditions had a greater impact on sediment yield than land cover status. The Banwolcheon and Donghwacheon watersheds contributed to approximately 60% of the total sediment load. From 1994 to 2010, before the operation of a tidal power plant, Hwajeongcheon, Ansancheon, Banwolcheon, Donghwacheon, and Namjeoncheon contributed to sediment deposition in the lake at rates ranging from 0.78 to 1.93cm/year. However, this result is interpreted as reflecting uncertainties in channel deposition in the downstream reach, as well as limitations of the SWAT model in capturing water level fluctuations due to the operation of a watergate. Despite the limitation of not undergoing calibration and validation due to insufficient continuous data for use, this study has significance in discussing the major source area of sediment by considering environmental changes within the watershed, with different land cover maps being used as input data for each period.
참고문헌 (20)
- 안영상, "Changes in Water Quality and Sediment Yield in the Forest Catchment - A Study of the Lake Shirarutoro Area in Northern Japan -", 한국환경생태학회지, 23(6), pp.569~576 (2009), 한국환경생태학회
- Report on the revised basic plan for the Ansancheon and Singilcheon in Ansan City, "Ansan-si", ~ (2009)
- Report on the revised basic plan for the Hwajeongcheon in Ansan City, "Ansan-si", ~ (2009)
- Arnold, J. G., "Large area hydrologic modeling and assessment part I : model development", Journal of the American Water Resources Association, 34(1), pp.73~89 (1998)
- Choi, J. -H., "Distribution of organic carbon, organic nitrogen, and heavy metals in Lake Shihwa sediments", Journal of the Korean Society of Oceanography, 5(4), pp.276~284 (2000)
- 최광순, "물 교환이 제한적인 시화호 상류 기수역의 부영양화", 생태와 환경, 41(2), pp.216~227 (2008), 한국수생태학회
- Report on the basic plan for Donghwacheon basin, "Gyeonggi-do", ~ (2007)
- A study on environmental changes in Shihwa Lake, "Korea Ocean Research and development Institute", ~ (1997)
- Sihwa lake marine environment improvement project, "Korea Ocean Research and development Institute", ~ (2005)
- Water quality management plan for upstream inflow rivers to Sihwa Lake, "Korea Ocean Research and development Institute", ~ (2007)
- Sihwa lake marine environment improvement project, "Korea Ocean Research and development Institute", ~ (2009)
- A study on the establishment of measures for environmental pollution reduction in Shihwa tidal flat in ’96, "K-water", ~ (1997)
- 강성현, "연안통합관리를 통한 시화호 간척지의 지속가능한 개발", 한국습지학회지, 7(1), pp.93~106 (2005), 한국습지학회
- 윤재원, "XML 기반의 수요자원 관리 개방형 서비스 플랫폼에 관한 연구", 조명.전기설비학회논문지, 28(10), pp.43~48 (2014), 한국조명.전기설비학회
- 이국진, "연안역의 토사 및 영양염류 유출에 관한 현지관측", 한국항해항만학회지, 29(1), pp.113~118 (2005), 한국항해항만학회
- Lee, H. -Y., "Impacts of large-scale reclamation on environment in Korea", Journal of the Korean Geographical Society, 32(4), pp.463~478 (1997)
- White paper on coastal environmental management of Sihwa Lake, "Ministry of Land, Transport and Maritime Affairs", ~ (2011)
- Srinivasan, R., "Integration of a basin-scale water quality model with GIS", Water Resources Bulletin, 30(3), pp.453~462 (1994)
- U. S. Bureau of Reclamation,, "Design of Small Dams" (1987)
- Wischmeier, W. H., "USDA Agricultural Handbook", pp.537~ (1978), USDA