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Determining the potential causes of a dust event occurrence in Northern Serbia
Lazović, Vojislav
Stevanović, Nevena
Ćosić, Marija
Životić, Ljubomir
Prekop, Nenad
Vuković Vimić, Ana
Abstract: Land degradation is often characterized as one of the most important problems of today‘s world as it poses a serious threat to the well-being of mankind. Soil degradation can be divided into four types: soil erosion and degradation of its physical, chemical, and biological properties. Although the mentioned types of degradation are often connected or even inseparable, here we focus on the processes of aeolian soil erosion. Namely, this research aims to, with the help of the analysis of various parameters, try to explain the potential causes of a dust event that occurred on March 28th, 2023 (on the route between Subotica and Stari Žednik, in Northern Serbia). Various parameters were observed to better understand the occurrence of a dust event and determine whether it could be repeated in the future on the territory of the Republic of Serbia. We processed climatic parameters and indices and their future projections, vegetation indices, and soil characteristics. Vegetation indices were calculated in QGIS using the satellite imagery obtained from the Sentinel-2 mission. The analysis of vegetation indices gives the impression that spring crops are most often grown in the researched area which means that in the moments when the conditions for the formation of erosion processes are most favorable (end of winter and beginning of spring), the soil is bare or has very scarce vegetation cover. Climate models predict changes in precipitation patterns and increases in temperature with more frequent occurrences of extreme events and long-lasting droughts. Intensive agricultural production and improper soil tillage lead to fragmentation and structural damage, significantly increasing the risk of wind erosion. Therefore, if certain anti-erosion measures are not implemented, more frequent dust events forming due to wind erosion could be expected.
engleski
2024
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Aeolian erosion, climate models, soil degradation, vegetation indices