Sensitivity analysis of soil parameters and their impact on runoff-erosion processes

Honek, David; Németová, Zuzana; Kohnová, Silvia; Michalková, Monika Šulc

doi:10.1556/606.2020.15.1.6

Cited by 2 publications

(3 citation statements)

References 7 publications

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“…The results from the model were compared with the bathymetric measurements in order to perform the validation of the physically-based EROSION-3D model. More information about the bathymetric measurements can be found in Németová et al (2020), Honek et al (2020). b)…”

Section: Parameters Input and Field Terrain Survey Of The Svacenicky Jarokmentioning

confidence: 99%

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Mathematical modeling of soil erosion processes using a physically-based and empirical models: Case study of Slovakia and central Poland

Németová¹,

Kohnová²

2021

AHS

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The article is focused on mathematical modelling of the soil erosion processes on the selected areas within the Slovak Republic and Poland. The study includes the validation of the models used based on the actual measurements. The intensity of the soil erosion processes was calculated using the physically-based EROSION-3D model and the empirical USLE-SDR model. The simulations were done based on continuous rainfall events and a long-term simulation. The results modelled were confronted with the actual measurements in both areas investigated. Since a model's validation and calibration as well as a relevant interpretation of the results obtained are the hardest and most challenging parts of any research, it is necessary to constantly enhance the techniques and methods of the calibration and validation of models, thereby deepening the knowledge of individual models. The results show the process has to be performed before the application of the models used together with the advantages and disadvantages of the physically-based and empirical models used, including a comparison and validation of the models applied.

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Section: Parameters Input and Field Terrain Survey Of The Svacenicky Jarokmentioning

confidence: 99%

“…Here, the soil input parameters were increased and decreased by about 10% in comparison with the reference (initial) state. The sensitivity analyses were performed in previous studies; for more information, see Honek et al (2020) or Németová et al (2020).…”

Section: Sensitivity Analyses Of the Soil Input Parametersmentioning

confidence: 99%

Mathematical modeling of soil erosion processes using a physically-based and empirical models: Case study of Slovakia and central Poland

Németová¹,

Kohnová²

2021

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“…In order to reduce potential soil loss and decrease the intensity of soil erosion processes or the volume of surface runoff, one of the first measures taken should be to analyse the agricultural practices in the area under consideration. As mentioned above, the roughness of the soil surface directly influences soil erosion processes and is affected by management practices; therefore, a small change in the agricultural practices used can lead to increasing the roughness of the soil surface (Honek at al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Analysis of factors influencing the intensity of soil water erosion

Tomaščík¹,

Németová²,

Danáčová³

2021

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Soil water erosion is one of the most widespread and most damaging processes of degradation in the world. Despite the fact that extensive research on it is carried out by a large number of scientists all around the world, it still occupies a leading position among global threats. Because soil erosion is a complex and quite complicated process, small steps have to be undertaken in order to reach any relevant conclusions. In most cases, in order to simulate soil erosion processes, mathematical models are widely used that are considered useful and helpful tools since the measurement of the erosion of terrain consumes time and space and is impossible in many parts of the world. The aim of the study presented lies in an analysis of elements input into a physically-based erosion model. Those input factors directly influence the model's end results, i.e., the soil erosion processes. The article attempts to define to what extent they affect the model results and soil erosion processes as well. The specific parameters of the soil erosion model, i.e., resistance to erosion and hydraulic roughness, were determined by simulated rainfall experiments. The results identify changes in the parameters input to the final model results together with different initial conditions.

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Sensitivity analysis of soil parameters and their impact on runoff-erosion processes

Cited by 2 publications

References 7 publications

Mathematical modeling of soil erosion processes using a physically-based and empirical models: Case study of Slovakia and central Poland

Mathematical modeling of soil erosion processes using a physically-based and empirical models: Case study of Slovakia and central Poland

Analysis of factors influencing the intensity of soil water erosion

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