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1

Wind erosion in Borska Lowland region as exemplified by cadastral district Borsky Mikulas

100%
Stred'ansky J., Stred'anska A.
Acta Scientiarum Polonorum. Formatio Circumiectus
|
2007
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tom 06
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nr 3
53-60
2
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Annual variations of soil erodibility of silt loam developed from loess based on 10-years runoff plot studies

84%
Rejman J., Brodowski R., Iglik I.
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
|
2008
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tom 39
Results of 10-years runoff plot experiments carried out on two sites of the Lublin Upland were presented. Despite similar soils and climatic conditions, studies showed large differences in annual soil erodibility (K factor of the USLE) between both sites. Experimentally derived values of the factor were dependent on tillage direction and time of maintaining runoff-plots in fallow conditions. On a site cultivated in contour direction, 4-year period was insufficient to achieve K values similar to the predicted values from the USLE. In contrast to this, on a site cultivated up-down slope, similar experimental and predicted K values were obtained after 2 years and remained at the same level during next 4 years. Results enabled to identify limitations of the USLE application for erosion prediction in Poland. Studies proved that soil erodibility could be used for prediction of erosion risk for silt loam developed from loess. However, application of soil erodibility approach to the event–base models is questionable for variation of K factor in the initial years. As far, the factors affecting soil erodibility changes are not recognized and need further research.
3

Soil deflation analyses from wind erosion events

84%
Lackoova L., Urban T., Kondrlova E., Kozlovsky Dufkova J.
Acta Scientiarum Polonorum. Formatio Circumiectus
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2015
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tom 14
|
nr 3
There are various methods to assess soil erodibility for wind erosion. This paper focuses on aggregate analysis by a laser particle sizer ANALYSETTE 22 (FRITSCH GmbH), made to determine the size distribution of soil particles detached by wind (deflated particles). Ten soil samples, trapped along the same length of the erosion surface (150–155 m) but at different wind speeds, were analysed. The soil was sampled from a flat, smooth area without vegetation cover or soil crust, not affected by the impact of windbreaks or other barriers, from a depth of maximum 2.5 cm. Prior to analysis the samples were prepared according to the relevant specifications. An experiment was also conducted using a device that enables characterisation of the vertical movement of the deflated material. The trapped samples showed no differences in particle size and the proportions of size fractions at different hourly average wind speeds. It was observed that most of particles travelling in saltation mode (size 50–500 μm) – 58–70% – moved vertically up to 26 cm above the soil surface. At greater heights, particles moving in suspension mode (floating in the air; size < 100 μm) accounted for up to 90% of the samples. This result suggests that the boundary between the two modes of the vertical movement of deflated soil particles lies at about 25 cm above the soil surface.
4

Comparison of methods for determination of soil erodibility factor (K-USLE) on the example of the Kasinczanka stream basin

84%
Ryczek M., Kruk E., Boron K., Klatka S., Stabryla J.
Acta Scientiarum Polonorum. Formatio Circumiectus
|
2013
|
tom 12
|
nr 2
Comparison of various methods for K-USLE soil erodibility factor determination was the purpose of this work. The used methods were: Wischmeier’s, Wischmeier’s and Smith’s, Monchareonm’s, Wiliams et al., Renard’s et al., Torii’s et al., Stone’s and Hilborn’s, and two methods NRCS. Calculations were carried out for mountainous basin of the Kasińczanka stream, tributary of the Raba river in the Western Carpathians. The obtained results shows that methods used for soil erodibility factor determination differ considerably. Mean values obtained by analyzed methods fluctuated between 0,138 and 0,354 Mg · ha–1 · Je–1.
5

Real and calculated K USLE erodibility factor for selected Polish soils

84%
Wawer R., Nowocien E., Podolski B.
Polish Journal of Environmental Studies
|
2005
|
tom 14
|
nr 5
The soil erodibility factor according to the USLE method was calculated for selected Polish soils. Data from 10 experimental plots of different soils in black fallow a terrain slope of 10% and in sprinkling conditions, were used for the study. The comparison of real data and data obtained form equations given by Wischmeier and Smith, as well as by Wiliams, revealed considerable differences in KUSLE values of the investigated soils. The statistical investigations were conducted to find the best fitting between observed and numerically predicted KUSLE values. The highest correlation (R=0.65) revealed the pair of MUSLE and ln(Kd /Kw) variables, where Kd represents real KUSLE values, while Kw KUSLE was calculated with Williams equation. The non-linear logarithmic regression model has shown the best fit, reaching the regression of R=0.77 between variables ln(Kd /Kw), MUSLE and outflow coefficient.
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