Detailed spatial analysis of SWAT-simulated surface runoff and sediment yield in a mountainous watershed in China

Bieger, Katrin; Hörmann, Georg; Fohrer, Nicola

doi:10.1080/02626667.2014.965172

Cited by 23 publications

(25 citation statements)

References 42 publications

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“…The importance of a realistic prediction for the spatial distribution of runoff components in SWAT has been stressed by many authors (e.g., Bieger et al, 2015;Bossa et al, 2012). A representative prediction of the spatial extent of the soil water retention capacity is of great importance for the simulation of sediment and nutrient transport, which in turn are often the aim of the development of management scenarios and best management practices.…”

Section: Hru-based Assessmentmentioning

confidence: 99%

Combining digital soil mapping and hydrological modeling in a data scarce watershed in north-central Portugal

et al. 2016

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Section: Hru-based Assessmentmentioning

confidence: 99%

Combining digital soil mapping and hydrological modeling in a data scarce watershed in north-central Portugal

et al. 2016

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“…Conversely, the impact of DEM derivatives (topographic attributes) has been explored less frequently (i.e. Wu et al, 2008;Yao et al, 2010;Bieger et al, 2015), even tough a profound understanding of DEM derivatives is essential for assessing the relationships between watershed topography and hydrologic processes (Wu et al, 2008). Among several DEM derivatives, Zhang et al (2014) showed that streamflow was most sensitive to the slope gradient.…”

Section: Introductionmentioning

confidence: 99%

The Hillslope Length Impact on SWAT Streamflow Prediction in Large Basins

Malagó¹,

Vigiak²,

Bouraoui³

et al. 2018

J ENV INFORM

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The objective of this study was to assess the impact of hillslope length on Soil and Water Assessment Tool (SWAT) streamflow predictions in large basins using three methods for hillslope length calculation (the SWAT method, L1; a 3D analysis method, L2; a constant value, L3) combined with two DEMs (pixel size of 25 and 100 m), for a total of six DEML configurations that were tested in the Upper Danube (132000 km 2 ). The delineation of subbasins and HRUs were kept unchanged in all configurations, thus isolating the DEM impact on streamflow from that of subbasins delineation. The configurations were independently calibrated in 98 gauged stations located in headwater subbasins (period 1995 ~ 2006), and validated in 150 gauged stations (period 1995 ~ 2009). The analysis of streamflow prediction was extended to its components (surface runoff, lateral flow and baseflow) using performance criteria and residual analysis, and the comparison of different components of water yield was pursued. Calibration and validation showed that all configurations simulated monthly streamflow acceptably (PBIAS < 25% for more than 70% of 150 gauged stations). DEM pixel size had negligible effect of streamflow and its components. The default hillslope length (L1) resulted in large overestimations of lateral flow. L2 resulted in the best performance as well as L3 method. Given that L2 method takes into account the topographic convergence of flow, the configuration of DEM100 and L2 is recommended for SWAT application in large basins in order to obtain reliable streamflow predictions.

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“…China is among the most affected countries in the world in terms of extent, intensity and economic impacts of erosion and land degradation, but sediment load is rarely measured. Two papers in this issue investigate soil erosion in China, one in a catchment of the Three Gorges Region (Bieger et al 2015), and the second in a catchment located in the Poyang Lake drainage area (Schmalz et al 2015). The Three Gorges Region is characterized by severe soil erosion, leading to the loss of the nutrient-rich topsoil and worsening water quality of the receiving surface waters.…”

Section: Surface Runoff and Sedimentsmentioning

confidence: 99%

“…In the study of Bieger et al (2015), SWAT was applied to the Xiangxi catchment in the Three Gorges Region. The surface runoff and sediment yields were analysed at the HRU level.…”

Section: Surface Runoff and Sedimentsmentioning

confidence: 99%

Advances in water resources assessment with SWAT—an overview

Krysanova

White

2015

Hydrological Sciences Journal

142

101

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This paper introduces a Special Issue containing 10 research papers which present current applications of the Soil and Water Assessment Tool (SWAT) for water resources assessment. First, an overview of selected, recently published papers with application of SWAT is given. The papers address the following topics: nutrients and related best management practices (BMPs); sediments and related BMPs; impoundment and wetlands; irrigation; bioenergy crops; climate change impact; and land-use change impacts. Then, papers from this Special Issue are briefly described, covering the themes: surface runoff and sediments; non-point source pollution; surface water and groundwater; impacts of climate and land-use change; and large-scale SWAT applications. The presented model applications of SWAT were conducted across a variety of spatial scales, physiographic regions and climatic zones. This collection of papers demonstrates that applications of SWAT for water resources assessment are growing in number and cover drainage basins in many regions worldwide.

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Detailed spatial analysis of SWAT-simulated surface runoff and sediment yield in a mountainous watershed in China

Cited by 23 publications

References 42 publications

Combining digital soil mapping and hydrological modeling in a data scarce watershed in north-central Portugal

Combining digital soil mapping and hydrological modeling in a data scarce watershed in north-central Portugal

The Hillslope Length Impact on SWAT Streamflow Prediction in Large Basins

Advances in water resources assessment with SWAT—an overview

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