20.500.12556/RUL-175003 Modelling diameter distribution in near-natural European beech forests are geo-climatic variables alone sufficient? Diameter distribution is an important indicator of stand structure and an input for many forest growth models. It is commonly modelled using theoretical functions, in which distribution parameters are expressed as a function of stand, geo-climatic and other predictors. However, modelling diameter distributions in near-natural forests remains limited, and the influence of geo-climatic factors has not been systematically assessed. Using data from 6759 sample plots, our aims were (i) to develop models of the scale (b) and shape (c) parameters of the two-parameter Weibull function for near-natural beech forests in Slovenia; (ii) to examine whether diameter distributions can be reliably modelled using only geo-climatic variables; and (iii) to determine whether separate models are required for different beech forest types. A broad set of stand, geo-climatic and forest management variables was considered in the modelling procedure. The results indicate that stand variables had the strongest influence, while geo-climatic variables were included in the best-performing models, but had negligible effects. The importance of stand-level variables over geo-climatic variables was highlighted. Models based solely on geo-climatic predictors performed poorly and are unsuitable for practical forestry applications. Model performance did not differ substantially across forest types, suggesting that separate models for forest types are unnecessary. Fagus sylvatica Weibull function parameter prediction method geo-climatic variables navadna bukev Weibullova funkcija metoda napovedovanja parametrov geo-klimatske spremenljivke true false true Angleški jezik Slovenski jezik Članek v reviji 2025-10-13 09:04:34 2025-10-13 09:04:42 2025-12-03 03:42:00 0000-00-00 00:00:00 2025 0 0 18 str. iss. 10, art. 1556 Vol. 16 Oct. 2025 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 0000-00-00 630*52:582.623.1(4) 1999-4907 10.3390/f16101556 252825091 RAZ_Boncina_Ziva_2025.pdf RAZ_Boncina_Ziva_2025.pdf 1 8DB7D3EAF8571190096DACF73312D0B3 77e8b78a96ae9a27a435764cdd6e535cbf1016946efd14d915c7edfba73eb332 f1a8fda7-a803-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=219917 https://www.mdpi.com/1999-4907/16/10/1556 1 a33bab7a-a802-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=219916 Biotehniška fakulteta 0 0 0