20.500.12556/RUL-114216 Relationships between structural indices and conventional stand attributes in an old-growth forest in Southeast Europe Structural indices are often proposed as guiding measures for increasing structural heterogeneity. However, few studies have examined the association between such indices and conventional stand attributes. The primary objectives of this study were to evaluate changes in structural heterogeneity and tree species diversity at different plot sizes and to quantify the relationships between conventional stand attributes (mean tree diameter, absolute tree density, basal area, species proportion) and structural indices in a mixed old-growth forest in Southeast Europe. Paired tests were used to identify significant changes in structural heterogeneity with increased plot area, while the relationships between stand attributes and analyzed indices (Gini, diameter differentiation, species mingling, and Shannon’s index) were evaluated with Pearson’s correlations. The index values of Gini, diameter differentiation, and tree species mingling were rather stable with the increase of plot size, whereas tree species diversity increased significantly with the increase of plot area from 200 m$^2$ to 1500 m$^2$. The measures of tree species mingling and tree species diversity were strongly associated with each other, while their association with diameter variability was weak to moderately strong. Tree species mingling index was strongly associated with the changes in tree species proportions. However, conventional stand attributes were generally not strongly correlated with the examined indices. For restoring and maintaining old-growth characteristics, forest managers may use structural indices to increase small-scale structural heterogeneity, tree species mingling, and diversity, but only as an additional set of measures, not as surrogates for conventional stand attributes. diameter variability species mingling old-growth forest plot size tree species diversity quantified relationships pragozdovi sestojna struktura bukev jelka smreka true false true Angleški jezik Slovenski jezik Članek v reviji 2020-02-19 13:45:55 2020-02-19 13:45:56 2022-08-26 03:49:48 0000-00-00 00:00:00 2019 0 0 13 str. iss. 1, art. 4 Vol. 11 2019 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 0000-00-00 630*2 1999-4907 10.3390/f11010004 5595046 3872166 RAZ_Keren_Srdjan_2019.pdf RAZ_Keren_Srdjan_2019.pdf 1 9FEE65C4AC33E55A734E6107A247CB53 b044bffc57d3b4ac64630e21d105dc12889e503bdbcb9d3378c6a7e86d310200 0780d012-4b74-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151283 https://www.mdpi.com/1999-4907/11/1/4 0 01dd8a82-4b74-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151282 Biotehniška fakulteta 0 0 0