Анализа кретања величине површине узгојних радова у Србији у периоду 1990-2015. године / An analysis of the changes in the scope of silvicultural operations in Serbia in the period between 1990 and 2015
2017
Крстић, Милун | Ранковић, Ненад | Алексић, Предраг
The paper presents the results of a research study of the changes in the surface area of silvicultural operations in Serbia in a long-term period between 1990 and 2015. Secondary data that refer to the forestry sector were collected from relevant statistical pub- lications. The analyzed operations are in the publications defined as: young growth care, thinning, cleaning, land preparation, conversion, reconstruction, substitution, enrichment planting. Due to the differences in the definition of some of the operations in the original literature, we first harmonized the stated terms with the standard terms commonly used in silvicultural operations in forestry. Regression models were used to define the trends of the performed silvicultural operations and their main elements in the study period. We studied the average share of different types of operations in the total treated area; the trends in the long-term tendencies of silvicultural operations; the average annual absolute growth and the average annual growth rate of these operations. It was found that the performed silvicultural operations show oscillating changes (increase and decrease) in the size of the surface area, different absolute growth values and growth rates.
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