National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Evaluation of different variants of soil loss and runoff characteristics calculations due to climate change
Derda, Ondřej ; Kulihová, Martina (referee) ; Sobotková, Veronika (advisor)
The paper compares the differences between the existing and the newly issued methodology on the protection of agricultural soil from erosion. The main differences examined are in the area of runoff characteristics, in the calculation of erosion and in the determination of the related factors R, LS and C. All differences are compared within the cadastral area of Dubenec in the Hradec Králové Region. Runoff characteristics were compared at 5 critical points in the DesQ-MaxQ (24-hour rainfall) and HEC-HMS (6-hour rainfall) programs. It is not certain which variant will be used more in practice. According to the author of the thesis, the current version with 24-hour rains will be more likely due to the simplicity of the process. The results of the erosion comparison have shown that the change in methodology will result in a significant increase in the determined erosion shear, which will affect the amount of erosion control measures needed in the proposed land development. Of the individual factors, the R factor has the greatest influence and increases erosion. The LS and C factors have less influence. In a particular area, the LS factor acts by reducing and the C factor by increasing.

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