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1 2020

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The Effect of Windbreak Parameters on the Wind Erosion Risk Assessment in Agricultural Landscape

Kučera Josef, Podhrázská Jana, Karásek Petr, Papaj Vladimir

Journal of Ecological Engineering

2020

Vol. 21, nr 2

150--156

The increasing risk of wind erosion in the context of climate change represents a highly pressing issue. This increase is a result of the growing occurrence of droughts and elevated temperatures in the intensively farmed areas. Effective protection against the wind erosion can be provided by windbreaks, especially during the period when the soil is not protected by the vegetation cover of crops. In this report, the authors wanted to compare the methods defining the windbreak protection zones. The optical porosity and the windbreak height were the basic parameters for defining the protection area. The various methods differ among themselves by using the windbreak height parameter or not. The optical porosity of the windbreaks was determined based on photographic documentation. For the comparison, the cadastral area of Micmanice was selected due to the wide network of windbreaks in this locality. A database of windbreak height and optical porosity for each windbreak was set up. Our report thus presents the application of the new knowledge aimed at updating the methods and procedures for assessing the vulnerability of the area by wind erosion. The application of the method involving the optical porosity and windbreak height parameters resulted in a significant reduction of the windbreak protection zone compared to the method omitting the windbreak height.