A pragmatic approach to modelling soil and water conservation measures with a catchment scale erosion model

Hessel, Rudi; Tenge, A.J.M.

doi:10.1016/j.catena.2008.03.018

Cited by 30 publications

(13 citation statements)

References 22 publications

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“…Simulation of the effect of physical SWC measures (bunds and diversion channels) on sediment yield with the Soil and Water Assessment Tool (SWAT) in the upper blue Nile basin by Lemann et al (2016a) estimated an average sediment yield reduction of 54% while Dagnew et al (2015) found a 57% decrease in suspended sediment concentration (SSC) at Debremewi sub-watershed in NW Ethiopian highlands. A similar study in Kenya reported by Hessel and Tenge (2008) show that LISEM-simulated physical SWC scenarios decreased erosion by 60% in an agricultural catchment. Subhatu et al (2017) estimated 32-37 t ha -1 y -1 soil loss using the USLE in treated catchment of Minichet, North Ethiopian highlands.…”

Section: The Effect Of Swc Measures On Rate and Patterns Of Soil Erosionsupporting

confidence: 74%

“…For instance, the simulation of the effect of physical SWC measures (bunds and diversion channels) on sediment yield with SWAT (Soil and Water Assessment Tool) in the upper blue Nile basin by Lemann et al (2016) estimated an average sediment yield reduction of 54% while Dagnew et al (2015) found a 57% decrease in SSC in Debremewi sub-watershed. A similar study in Kenya reported by Hessel and Tenge (2008) show that LISEM simulated physical SWC scenarios decreased erosion by 60% in an agricultural catchment. Another study by Hessel and Tenge (2008) found a 60% decrease in sediment yield prediction with LISEM in the Loess plateau, China.…”

Section: Brief Answer To the Research Questionssupporting

confidence: 73%

“…A similar study in Kenya reported by Hessel and Tenge (2008) show that LISEM simulated physical SWC scenarios decreased erosion by 60% in an agricultural catchment. Another study by Hessel and Tenge (2008) found a 60% decrease in sediment yield prediction with LISEM in the Loess plateau, China.…”

Section: Brief Answer To the Research Questionssupporting

confidence: 73%

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Effect of soil and water conservation measures on hydrological processes and sediment yield in the highlands of North-Western Ethiopia

Lakew¹

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Section: The Effect Of Swc Measures On Rate and Patterns Of Soil Erosionsupporting

confidence: 74%

Section: Brief Answer To the Research Questionssupporting

confidence: 73%

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Effect of soil and water conservation measures on hydrological processes and sediment yield in the highlands of North-Western Ethiopia

Lakew¹

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“…LISEM was originally developed to protect the intensively used agricultural loess soils in the region of Limburg (Netherlands) against soil erosion. Since then, the model has been steadily improved and successfully applied in other regions (Hessel and Tenge, ; Jetten et al ., ). Process description in LISEM is based on the algorithms of the EURopean Soil Erosion Model (EUROSEM) (Morgan et al ., ); however, in contrast to EUROSEM, the raster approach is used for spatial discretisation.…”

Section: Methodsmentioning

confidence: 96%

Predicting the impact of linear landscape elements on surface runoff, soil erosion, and sedimentation in the Wahnbach catchment, Germany

Hölzel

Diekkrüger

2011

Hydrological Processes

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Abstract:Model predictions concerning the endangerment of on-site and off-site damages due to runoff, soil erosion and sedimentation under alternative design and operation policies are of particular importance in recent catchment planning and management. By using the raster-based model approach, linear landscape elements, such as streets and roads, and their impacts on flow paths are often neglected. Therefore, the aim of this study was to analyse the effects of linear landscape elements on patterns of soil erosion, sediment transport and sedimentation. To accomplish this, roads are considered while determining flow paths. Simulations in the well-investigated catchment of the Wahnbach River (54 km²) in a low mountain range in Germany were carried out using a combination of different models for hydrology and soil erosion. Although the study focuses on the catchment scale of the Wahnbach River, detailed investigations concerning the sub-catchment scale (21 ha) were also conducted. The simulation results show that these spatial structures mainly affect the pattern of soil erosion and sedimentation. On the subcatchment scale, improved identification of active zones for sediment dynamic becomes possible. On the catchment scale, the predicted runoff is about 20% higher, and sediment outputs were four times larger than predicted when roads were considered. Soil erosion increases by 37% whereas sedimentation is reduced by 29%. The model improvement could not be evaluated on the catchment scale because of the high variability and heterogeneity of land use and soils, but road impacts could be explained by simulations on the sub-catchment scale. It can be concluded that runoff concentration due to rerouted flow paths leads to lower non-concentrated and higher concentric-linear surface runoff. Thus, infiltration losses decline and surface runoff and soil erosion increase because sedimentation is reduced. Further, runoff concentration can cause soil erosion hot spots. In the model concept used in this study, buffering of runoff and sediments on the upslope side of roads and in local depressions adjacent to roads cannot be simulated. Flow paths will only be rerouted because of road impacts, but the temporal ponding of water is not simulated. Therefore, the drastic increase of predicted sediment output due to road impact does not seem to be reliable. However, results indicate that the consideration of roads when determining flow paths enabled more detailed simulations of surface runoff, soil erosion and sedimentation. Thus, progress in model-based decision-making support for river catchment planning and management can be achieved.

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“…Both models have been widely used in different studies; e.g. LISEM in Jetten and De Roo (1999); Takken et al (1999); Hessel (2005); Hessel and Tenge (2008); Stolte et al (2005); Hessel et al (2003); Nearing et al (2005); Hengsdijk et al (2005); Sheikh et al (2010) and EROSION 3D e.g. in Werner (1995); Schmidt and Werner (2000); Michael et al (2005); Schob et al (2006); Schindewolf and Schmidt (2009); Köthe (2010); 2.…”

Section: Introductionmentioning

confidence: 99%

Winter hydrology and soil erosion processes in an agricultural catchment in Norway

Starkloff¹

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A pragmatic approach to modelling soil and water conservation measures with a catchment scale erosion model

Cited by 30 publications

References 22 publications

Effect of soil and water conservation measures on hydrological processes and sediment yield in the highlands of North-Western Ethiopia

Effect of soil and water conservation measures on hydrological processes and sediment yield in the highlands of North-Western Ethiopia

Predicting the impact of linear landscape elements on surface runoff, soil erosion, and sedimentation in the Wahnbach catchment, Germany

Winter hydrology and soil erosion processes in an agricultural catchment in Norway

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