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251.
Odprta znanost v Sloveniji in svetu
Janez Štebe, 2021, preface, editorial, afterword

Keywords: znanstveno raziskovanje, znanstveno objavljanje, odprta znanost, raziskovalni podatki
Published in DiRROS: 07.04.2021; Views: 1601; Downloads: 572
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252.
Usklajena merila sprejemljive poškodovanosti gozdnih tal - preverjanje ustreznosti med gozdarskimi strokovnjaki
Anton Poje, Matevž Mihelič, Vasja Leban, 2021, original scientific article

Abstract: Splošno veljavna, predvsem pa v stroki sprejeta merila sprejemljive poškodovanosti tal po gozdni proizvodnji so predpogoj za učinkovito varovanje gozdnih tal in objektiven nadzor nad kakovostjo izvedbe gozdnih del. V raziskavi znotraj gozdarske stroke smo preverili sprejemljivost meril, ki so jih na osnovi dosedanjih raziskav predlagali Poje in sodelavci (2019). Anketiranje je bilo opravljeno na 35. Gozdarskih študijskih dnevih, kjer je na anketo odgovorilo 62 udeležencev iz različnih ustanov. Rezultati ankete so pokazali, da so usklajena merila strožja od predlaganih ter da se ocene po posameznih kazalnikih znotraj meril razlikujejo med deležniki. Po predlogu usklajenih meril je dopustna odprtost z vlakami 192 m/ha, s sečnimi potmi pa dodatnih 193 m/ha. Največja globina kolesnic na vlakah ne sme presegati 30 cm, na sečnih poteh pa 20 cm. Največja globina kolesnic na 90 % dolžine vseh sečnih poti na delovišču naj ne presega 10 cm. Tudi na osnovi rezultatov drugih študij se zdi predlog usklajenih meril smiseln in primeren s tehnološkega, ekonomskega in ekološkega vidika. Pred uvajanjem usklajenih meril v prakso je poleg njihovega preverjanja na terenu in morebitnega ponovnega usklajevanja treba nujno razviti metodo za ocenjevanje poškodovanosti.
Keywords: pridobivanje lesa, anketa, merila sprejemljive poškodovanosti tal, poškodba tal
Published in DiRROS: 28.03.2021; Views: 3650; Downloads: 2281
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253.
254.
Modeling of time consumption for selective and situational precommercial thinning in mountain beech forest stands
Domen Arnič, Janez Krč, Jurij Diaci, 2021, original scientific article

Abstract: Rationalization and optimization of work is becoming increasingly important in the European forestry sector. In this study a tool for modeling three different precommercial thinning approaches in young beech mountain stands was developed based on several field studies. The simulation examines three primary types of precommercial thinning: selective thinning and two types of situational thinning. We studied the impact of the number of candidates/crop trees and the impact of harvesting intensity on the structure and consumption of productive time. We found that in terms of costs situational precommercial thinning is more rational than selective precommercial thinning, that harvesting intensity has a significant impact on time consumption and that the number of candidates or crop trees has a significant impact on time consumption as well as on the relationships between main and auxiliary productive time. The modeling has shown that situational thinning is an alternative to selective thinning and that, in addition to requiring smaller and more efficient harvesting machines, it offers a cost-effective and ergonomic option (more walking, less chainsaw operation) for the pre-commercial thinning of young forest.
Keywords: precommercial thinning, selective thinning, situational thinning, modeling, crop tree
Published in DiRROS: 22.03.2021; Views: 1291; Downloads: 716
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Rdeče gozdne mravlje v Sloveniji
Janez Titovšek, 1994, original scientific article

Keywords: mravlje, Slovenija
Published in DiRROS: 05.02.2021; Views: 2666; Downloads: 1427
.pdf Full text (1,91 MB)

258.
259.
How monoamine oxidase A decomposes serotonin : an empirical valence bond simulation of the reactive step
Alja Prah, Miha Purg, Jernej Stare, Robert Vianello, Janez Mavri, 2020, original scientific article

Published in DiRROS: 26.11.2020; Views: 1417; Downloads: 842
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260.
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