Journal
JOURNAL OF ECOLOGICAL ENGINEERING
Volume 23, Issue 1, Pages 100-109Publisher
POLISH SOC ECOLOGICAL ENGINEERING-PTIE
DOI: 10.12911/22998993/143977
Keywords
water erosion; land use; GIS; LS factor; USLE; anti-erosion measures
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Funding
- Ministry of Agriculture of the Czech Republic [TJ04000342]
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This study compares different methods of LS factor assessment before and after the application of anti-erosion measures in the Czech Republic, using the Starovice - Hustopete study area as an example.
In the projects of anti-erosion protection in the Czech Republic, USLE was used as a standard tool for evaluating the risk of water erosion. The precision of the resulting USLE values is defined by the quality of input data and algorithms used. Two methods for LS factor calculation are reconunended for use in the planning practice in the Czech Republic: the computing method based on the USLE 2D software and the other computing methods. Various methods can assess the LS factor, however, their results differ. On the example of the Starovice - Hustopete study area (Czech Republic), strongly threatened by erosion, this report aimed to show the differences brought using these differing methods of LS factor assessment, all in two variants before and after application of anti-erosion measures (retention grass belts, grassed thalweg). Changes in the calculation of the LS factor were directly reflected in the calculation of the long-term average soil loss by water erosion.
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