20.500.12556/RUL-132836 Temperature effect on size distributions in spruce-fir-beech mixed stands across Europe Forest composed of Picea abies L., Abies alba Mill. and Fagus sylvatica L. cover a large area in the European mountain regions and have a high ecological and socio-economic importance as they supply many ecosystems services. Because of climate change, these forests are exposed to warming, and this effect increases with elevation, which may impact their delivery of goods and services. Previous studies did not find significant changes in the overall productivity of these species over the last 30 years, but they observed changes in species competitiveness at the species and tree levels. In this study, we aimed to link previous results on tree, species and stand level growth in spruce-fir-beech mixed mountain forests by analysing species size distribution dynamics under different climate conditions and their effect on stand growth. We developed a matrix model based on data from 76 long-term experimental plots distributed throughout Europe. We used the change in stand basal area to explore whether temperature modifies species size dominances and proportions, whether the temperature effects on changes in species basal area depend on species size dominance, and whether the effect of species size dominance on changes in the stand basal area varies with temperature. Our results showed that annual mean temperature is an important climatic driver of species dynamics in spruce-fir-beech mixed mountain forests, such that stand basal area growth was favored by higher temperatures, particularly due to positive responses of silver fir which were greater than negative effects of temperature on European beech. The high temperatures also favored the size-dominance of silver fir, while European beech tended to have smaller diameters, independent of the temperature. We also found that the identity of the size-dominant species also influenced changes in stand basal area, with the highest or the lowest changes when Norway spruce and European beech were the size-dominant species, respectively. Silver fir was less influenced by the identity of the size-dominant species than by temperature. Therefore, although mixed mountain forests of spruce-fir-beech were found to be resilient systems in terms of stand productivity, we conclude that increasing temperatures may modify species dynamics and consequently silvicultural interventions will be needed to control species proportions and dominances. matrix model climate mountain forest basal area growth diameter distribution inter-specific competition matrični modeli podnebje gorski gozdovi drevesna rast premer true false true Angleški jezik Slovenski jezik Članek v reviji 2021-11-04 12:50:08 2021-11-04 12:50:13 2022-09-12 04:13:57 0000-00-00 00:00:00 2022 0 0 14 str. article 119819 Vol. 504 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2021-09-26 2021-10-22 2021-11-02 630*111 1872-7042 10.1016/j.foreco.2021.119819 83507715 https://doi.org/10.1016/j.foreco.2021.119819 1 5403f2df-3d65-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=150558 RAZ_Condes_Sonia_2022.pdf RAZ_Condes_Sonia_2022.pdf 1 B2ADBD2A27EB5E0C2449712E36603A46 a9e3d1a870314edfee9b8ff76a7d9441f9c59c63ebca33279752787b9f2ead3f aba53d51-3d65-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=150561 Biotehniška fakulteta 0 0 0