The purpose of this thesis was to examine the spatial point pattern of trees in thinned and naturally developing stands and to test the effect of thinning on a regular spatial pattern. Two plots were analyzed, and two measurements were carried out for each of them, the first in 2009, showing the state of the plots before the thinning, and the second in 2021, showing the state of the plots after the thinning. On one of the plots selective thinning was to be carried out, the coordinates of which are [N: 46°00,311', E: 15°36,048'], and the other was meant as a control, with coordinates [N: 46°00,282', E: 15°35,814'], so no type of thinning was applied to it. The analysis and visualization were done with the programing language Python. We compared the state of the plots before and after the thinning and found that the two plots were somewhat aggregated in 2009. After the thinning on one of the plots in 2021, the signs of aggregation were removed, and the spatial pattern was now completely spatially random. On the other hand, the changes between the plot in 2009 and in 2021 for the control plot were basically nonexistent. This leads us to believe that thinning accelerates the development of a spatial pattern of trees in a stand, such that it decreases aggregation and increases nearest neighbor distances. On the plot where selective thinning was carried out, selected trees were also determined for both 2009 and 2023. We found they were evenly distributed, and after the thinning, the spatial pattern did not become more even, nor did it become more random but remained virtually unchanged.
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