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Magnitude and Occurrence Probability of Soil Loss: a Risk Analytical Approach for the Plot Scale for Two Sites in Lower Austria

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Title Magnitude and Occurrence Probability of Soil Loss: a Risk Analytical Approach for the Plot Scale for Two Sites in Lower Austria
 
Creator Strohmeier, Stefan
 
Contributor Laaha, Gregor
Holzmann, H.
Klik, Andreas
 
Subject plot experiment
occurrence probability
return period
 
Description Long-term contribution of soil loss events depends on both – the magnitude and the occurrence probability – but oftentimes, a limited observation period impedes the assessment of the temporal soil loss distribution. In this research, the event-based soil loss from two plot locations in Lower Austria (Mistelbach and Pixendorf) was linked with the event-based rainfall erosivity (EI30) to assess the temporal soil loss distribution using long-term rainfall data from two meteorological stations in Lower Austria. For both plot locations, a risk analysis was performed to (i) assess the long-term average annual soil loss and to (ii) evaluate the contribution of incremental erosion events according to different event return periods. The risk analysis showed that in Pixendorf the events 20 years return period is progressively reduced through the low occurrence probability. On the contrary, in Mistelbach the soil loss magnitudes of the extreme events overcome the effect of the low occurrence probability, and consequently, the contribution of the extreme events (>20 years return period) is dominant. The spatially variable contribution of the erosion events reveals the need for spatially customized soil conservation strategies. A risk analytical approach may help to allocate the driving events and thus to define proper event design magnitudes for local soil conservation planning.
 
Date 2017-02-24T17:41:04Z
2017-02-24T17:41:04Z
 
Type Journal Article
 
Identifier https://mel.cgiar.org/dspace/limited
http://onlinelibrary.wiley.com/doi/10.1002/ldr.2354/abstract
https://www.researchgate.net/publication/269339678_Magnitude_and_Occurrence_Probability_of_Soil_Loss_A_Risk_Analytical_Approach_for_the_Plot_Scale_For_Two_Sites_in_Lower_Austria
Stefan Strohmeier, Gregor Laaha, H. Holzmann, Andreas Klik. (13/1/2016). Magnitude and Occurrence Probability of Soil Loss: a Risk Analytical Approach for the Plot Scale for Two Sites in Lower Austria. Land Degradation and Development, 27 (1), pp. 43-51.
https://hdl.handle.net/20.500.11766/5965
Limited access
 
Language en
 
Format PDF
 
Publisher Wiley: 12 months
 
Source Land Degradation and Development;27,(2015) Pagination 43-51