침엽수 산림에서의 토양수분 감쇄특성 분석
Analysis of Soil Moisture Recession Characteristics in Conifer Forest
4
조회
0
다운로드
8
인용
0
참고문헌
키워드
초록
Forest area covers 64 % of the national land of Korea and the forest plays a pivotal role in the hydrological process such as flood, drought, runoff, infiltration, evapotranspiration, etc. In this study, soil moisture monitoring for conifer forest in experimental forest of Seoul National University has been conducted using FDR (Frequency Domain Reflection) for 6 different soil layers, 10,20, 30, 60, 90 and 120 cm during 2009～2010, and precipitation data was collected from nearby AWS (Automatic Weather Station). Soil moisture monitoring data were used to estimate soil moisture recession constant (SMRC) for analyzing soil moisture recession characteristics. From the results, empirical soil moisture recession equations were estimated and validated to determine the feasibility of the result, and soil moisture contents of measured and calculated showed a similar tendency from April to November. Thus, the results can be applied for soil moisture estimation and provided the basic knowledge in forest soil moisture consumption. Nevertheless,this approach demonstrated applicability limitations during winter and early spring season due to freezing and melting of snow and ice causing peculiar change of soil moisture contents.
Abstract
Forest area covers 64 % of the national land of Korea and the forest plays a pivotal role in the hydrological process such as flood, drought, runoff, infiltration, evapotranspiration, etc. In this study, soil moisture monitoring for conifer forest in experimental forest of Seoul National University has been conducted using FDR (Frequency Domain Reflection) for 6 different soil layers, 10,20, 30, 60, 90 and 120 cm during 2009～2010, and precipitation data was collected from nearby AWS (Automatic Weather Station). Soil moisture monitoring data were used to estimate soil moisture recession constant (SMRC) for analyzing soil moisture recession characteristics. From the results, empirical soil moisture recession equations were estimated and validated to determine the feasibility of the result, and soil moisture contents of measured and calculated showed a similar tendency from April to November. Thus, the results can be applied for soil moisture estimation and provided the basic knowledge in forest soil moisture consumption. Nevertheless,this approach demonstrated applicability limitations during winter and early spring season due to freezing and melting of snow and ice causing peculiar change of soil moisture contents.
참고문헌 (13)
- Bruno, R. D, "Soil moisture dynamics in an eastern Amazonian tropical forest", Hydrological Processes, 20, pp.2477~2489 (2006)
- 최경문, "전이함수를 통한 광릉 산림 유역의 토양수분 모델링", 한국농림기상학회지, 10(2), pp.35~46 (2008), 한국농림기상학회
- Grayson, R. B, "Preferred states in spatial soil moisture patterns: local and nonlocal controls", Water Resources Research, 33(12), pp.2897~2908 (1997)
- Hammond, M, "Recession curve estimation for storm event separations", Journal of Hydrology, 330, pp.573~585 (2006)
- Kim, H. K, "Modeling hydrologic and water quality effects of impervious surfaces in farm and urban watersheds", 박사, pp.2009
- 김옥경, "토양수분지수를 이용한 유역단위 가뭄 평가", 한국농공학회논문집, 48(6), pp.3~13 (2006), 한국농공학회
- Lee, E. J, "Assessing impact of non-point source pollution by management alternatives on arable land using AGNPS model", 석사, pp.2007
- 이가영, "산지사면에서의 TDR을 이용한 토양수분 집중모니터링을 통한 토양수분 감쇄특성 분석", 한국농림기상학회지, 7(1), pp.78~90 (2005), 한국농림기상학회
- Miller, G. R, "An analysis of soil moisture dynamics using multi-year data from a network of micrometeorological observation sites", Advances in Water Resources, 30, pp.1065~1081 (2006)
- 오경준, "봄, 가을철 시공간적 특성을 고려한 사면에서의 토양수분 거동파악", 한국수자원학회 논문집, 39(7), pp.605~615 (2006), 한국수자원학회
- Ting, J. C, "Soil-Moisture depletion under three southern pine plantations in east TEXAS", Forest Ecology and Management, 12, pp.179~193 (1985)
- Vogel. R. M, "Estimation of baseflow recession constants", Water Resources Management, 10, pp.303~320 (1996)
- Wittenberg, H., "Baseflow recession and recharge as nonlinear process", Hydrological Processes, 13, pp.715~726 (1999)