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46. Surprising drought tolerance of Fir (Abies) species between past climatic adaptation and future projections reveals new chances for adaptive forest managementCsaba Mátyás, František Beran, Jaroslav Dostál, Jiří Čáp, Martin Fulín, Monika Vejpustková, Gregor Božič, Pál Balázs, Josef Frýdl, 2021, original scientific article Abstract: esearch Highlights: Data of advanced-age provenance tests were reanalyzed applying a new approach, to directly estimate the growth of populations at their original sites under individually generated future climates. The results revealed the high resilience potential of fir species. Background and Objectives: The growth and survival of silver fir under future climatic scenarios are insufficiently investigated at the xeric limits. The selective signature of past climate determining the current and projected growth was investigated to analyze the prospects of adaptive silviculture and assisted transfer of silver fir populations, and the introduction of non-autochthonous species. Materials and Methods: Hargreaves% climatic moisture deficit was selected to model height responses of adult populations. Climatic transfer distance was used to assess the relative drought stress of populations at the test site, relating these to the past conditions to which the populations had adapted. ClimateEU and ClimateWNA pathway RCP8.5 data served to determine individually past, current, and future moisture deficit conditions. Besides silver fir, other fir species from South Europe and the American Northwest were also tested. Results: Drought tolerance profiles explained the responses of transferred provenances and predicted their future performance and survival. Silver fir displayed significant within-species differentiation regarding drought stress response. Applying the assumed drought tolerance limit of 100 mm relative moisture deficit, most of the tested silver fir populations seem to survive their projected climate at their origin until the end of the century. Survival is likely also for transferred Balkan fir species and for grand fir populations, but not for the Mediterranean species. Conclusions: The projections are less dramatic than provided by usual inventory assessments, considering also the resilience of populations. The method fills the existing gap between experimentally determined adaptive response and the predictions needed for management decisions. It also underscores the unique potential of provenance tests.
Keywords: climate change, common garden, provenance test, silver fir, grand fir, Balkan firs, drought stress, resilience, climate transfer distance, adaptation
Published in DiRROS: 05.07.2021; Views: 932; Downloads: 588
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47. Guidelines for the production of planting material for restoration of riparian forestsGregor Božič, Marjana Westergren, Konrad Heino, Miran Lanšćak, Laszlo Nagy, Zoran Novčić, Sonja Rukavina, Silvio Schüler, Srdjan Stojnić, Peter Železnik, 2021, dictionary, encyclopaedia, lexicon, manual, atlas, map Published in DiRROS: 03.05.2021; Views: 2073; Downloads: 1329
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49. Načrt izvedbe izbranih ukrepov na pilotnih območjih : obnova degradiranih gozdov na Kočevskem : izboljšanje upravljanja mokrišč na Ljubljanskem barju : ohranjanje trajnega travinja na GoričkemBoštjan Mali, Andreja Ferreira, Gregor Božič, 2021, project documentation (preliminary design, working design) Keywords: degradirana območja, mokrišča, Ljubljansko barje, Kočevje, Goričko, ukrepi, obnova degradiranih območij, gozdovi
Published in DiRROS: 05.03.2021; Views: 1076; Downloads: 0
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50. Protokol za določanje kvalitete sadik gozdnega drevja : Naloga JGS 3/2.4 "Analize kvalitete sadik in koreninskega sistema" : standardni operativni postopekPeter Železnik, Natalija Dovč, Tine Grebenc, Gregor Božič, 2021, treatise, preliminary study, study Keywords: tehnična navodila, laboratorij, programska oprema, standardni operativni postopek, laboratorijska oprema, določenje kvalitete, kvaliteta sadik, koreninski sistem
Published in DiRROS: 04.02.2021; Views: 1382; Downloads: 501
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