DOI: 10.5194/hess-19-1293-2015
Scopus记录号: 2-s2.0-84924311228
论文题名: Modeling suspended sediment sources and transport in the Ishikari River basin, Japan, using SPARROW
作者: Duan W ; L ; , He B ; , Takara K ; , Luo P ; P ; , Nover D ; , Hu M ; C
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 3 起始页码: 1293
结束页码: 1306
语种: 英语
Scopus关键词: Agriculture
; Calibration
; Forestry
; Hydrographic surveys
; Petroleum reservoir engineering
; Reservoirs (water)
; Rivers
; Sediments
; Surface waters
; Water resources
; Watersheds
; Fate and transport
; Monitoring stations
; Natural logarithms
; Sediment production
; Spatial variability
; Suspended sediment loads
; Suspended sediment sources
; Watershed modeling
; Suspended sediments
; calibration
; error analysis
; flux measurement
; model validation
; monitoring system
; regression analysis
; sediment transport
; spatial variation
; surface water
; suspended sediment
; watershed
; Attenuation
; Ecology
; Hydrology
; Permeability
; Precipitation
; Rivers
; Sediments
; Hokkaido
; Ishikari River
; Japan
英文摘要: It is important to understand the mechanisms that control the fate and transport of suspended sediment (SS) in rivers, because high suspended sediment loads have significant impacts on riverine hydroecology. In this study, the SPARROW (SPAtially Referenced Regression on Watershed Attributes) watershed model was applied to estimate the sources and transport of SS in surface waters of the Ishikari River basin (14 330 km2), the largest watershed in Hokkaido, Japan. The final developed SPARROW model has four source variables (developing lands, forest lands, agricultural lands, and stream channels), three landscape delivery variables (slope, soil permeability, and precipitation), two in-stream loss coefficients, including small streams (streams with drainage area < 200 km2) and large streams, and reservoir attenuation. The model was calibrated using measurements of SS from 31 monitoring sites of mixed spatial data on topography, soils and stream hydrography. Calibration results explain approximately 96% (R2) of the spatial variability in the natural logarithm mean annual SS flux (kg yr-1) and display relatively small prediction errors at the 31 monitoring stations. Results show that developing land is associated with the largest sediment yield at around 1006 kg km-2 yr-1, followed by agricultural land (234 kg km-2 yr-1). Estimation of incremental yields shows that 35% comes from agricultural lands, 23% from forested lands, 23% from developing lands, and 19% from stream channels. The results of this study improve our understanding of sediment production and transportation in the Ishikari River basin in general, which will benefit both the scientific and management communities in safeguarding water resources. © Author(s) 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78656
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China; Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan; Institute of Hydraulic Structure Engineering and Water Environment, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, Zhejiang, China; Institute for the Advanced Study of Sustainability, United Nations University, Shibuya, Tokyo, Japan; AAAS Science and Technology Policy Fellow, US Environmental Protection Agency, Global Change Research Group, Washington, DC, United States
Recommended Citation:
Duan W,L,, He B,et al. Modeling suspended sediment sources and transport in the Ishikari River basin, Japan, using SPARROW[J]. Hydrology and Earth System Sciences,2015-01-01,19(3)