eng Poznan University of Life Sciences, Poland Acta Scientiarum Polonorum Silvarum Colendarum Ratio et Industria Lignaria 16440722 2011-12-30 10 4 5 15 article Andrzej M. Jagodziński 1 Maciej Skorupski 1 Marek Kasprowicz 1 Maria Wojterska 1 Tomasz Dobies 1 Izabela Kałucka 1 Małgorzata Sławska 1 Anna Wierzbicka 1 Andrzej Łabędzki 1 Joanna Oleszyńska-Niżniowska 1 Mirosław Nowiński 1 Stanisław Małek 1 Piotr Karolewski 1 Jacek Oleksyn 1 Piotr Banaszczak 1 Poznań University of Life Sciences Instytut of Dendrology of Polish Academy of Sciences, Kórnik Adam Mickiewicz University in Poznań University of Lodz Warsaw University of Life Sciences &#; SGGW University of Agriculture in Krakow Rogów Arboretum of Warsaw University of Life Sciences &#; SGGW  The paper gives a survey of biodiversity of Greek fir (Abies cephalonica)standsin Rogów Arboretum on the background of environmental data. Greek fir is native to the southern and central Greece to the areas of the Mediterranean-montane climate. The data concerning differentiation and species composition of natural stands are not complete as well as those on Greek fir plantations in Europe. The study conducted in Rogów Arboretum has shown the presence of 62 taxa of vascular plants and mosses, 58 taxa of macrofungi and 132 of invertebrates.   https://www.forestry.actapol.net/volume10/issue4/1_4_2011.pdf Abies cephalonica Greek fir biodiversity vascular plants macrofungi nema¬todes mites insects eng Poznan University of Life Sciences, Poland Acta Scientiarum Polonorum Silvarum Colendarum Ratio et Industria Lignaria 16440722 2011-12-30 10 4 17 27 article Marek Kasprowicz 1 Andrzej M. Jagodziński 1 Maciej Skorupski 1 Maria Wojterska 1 Tomasz Dobies 1 Izabela Kałucka 1 Małgorzata Sławska 1 Anna Wierzbicka 1 Andrzej Łabędzki 1 Mirosław Nowiński 1 Piotr Karolewski 1 Jacek Oleksyn 1 Piotr Banaszczak 1 Stanisław Małek 1 Adam Mickiewicz University in Poznań Poznań University of Life Sciences Institute of Dendrology of Polish Academy of Sciences, Kórnik University of Lodz Warsaw University of Life Sciences &#; SGGW Rogów Arboretum of Warsaw University of Life Sciences &#; SGGW University of Agriculture in Krakow   The paper gives a survey of biodiversity of noble fir (Abies procera)stands in Rogów Arboretum on the background of environmental data. Noble fir is native to the mountains of north-western United States. During the study in the Rogów Arboretum we have found 53 taxa of vascular plants and mosses, 51 taxa of macrofungi and 112 of invertebrates in Abies procera stands. The documented biodiversity of planted Abies procera stands has been commented with respective data from natural habitats.   https://www.forestry.actapol.net/volume10/issue4/2_4_2011.pdf Abies procera noble fir biodiversity vascular plants macrofungi nematodes mites insects eng Poznan University of Life Sciences, Poland Acta Scientiarum Polonorum Silvarum Colendarum Ratio et Industria Lignaria 16440722 2011-12-30 10 4 29 38 article Piotr S. Mederski 1 Mariusz Bembenek 1 Jörn Erler 2 Dieter F. Giefing 1 Poznań University of Life Sciences Dresden University of Technology   Cut-to-length technology for broadleaved species is a novelty in forest operations, also causing various difficulties. The purpose of the study was to find effects of an application of the CTL 40HW head[1] for broadleaves mounted on the UTC 150-6LS harvester used in a thinning operation in a birch stand in northern Poland. For this, productivity, the level of damage in the remaining stand and soil disturbances were analysed. The results present a satisfactory outcome: the average productivity was 13.4 m3·h-1 (h of operational time). Analysis of the remaining stand showed 4-7% trees with damage. Analysis of the soil on the harvester strip roads showed a bulk density increase of 0.16-0.21 g·cm-3. It was also observed that there was lower mean soil moisture after harvesting, though this change was not statistically confirmed. The biggest soil penetration resistance increase was observed after two machine drives: 50% on 30 cm of depth and after a single drive 45% on 10 cm of depth.     https://www.forestry.actapol.net/volume10/issue4/3_4_2011.pdf harvester broadleaves thinning productivity stand damage soil damage eng Poznan University of Life Sciences, Poland Acta Scientiarum Polonorum Silvarum Colendarum Ratio et Industria Lignaria 16440722 2011-12-30 10 4 39 49 article Maciej Skorupski 1 Andrzej M. Jagodziński 1 2 Izabela Kałucka 3 Marek Kasprowicz 4 Maria Wojterska 4 Tomasz Dobies 1 Małgorzata Sławska 5 Anna Wierzbicka 1 Andrzej Łabędzki 1 Joanna Oleszyńska-Niżniowska 1 Mirosław Nowiński 1 Stanisław Małek 6 Piotr Karolewski 2 Jacek Oleksyn 2 Piotr Banaszczak 7 Poznań University of Life Sciences Institute of Dendrology of Polish Academy of Sciences, Kórnik University of Lodz Adam Mickiewicz University in Poznań Warsaw University of Life Sciences &#; SGGW University of Agriculture in Krakow Rogów Arboretum of Warsaw University of Life Sciences &#; SGGW The paper gives a survey of biodiversity of planted grand fir (Abies grandis)standsin Rogów Arboretum on the background of environmental data compared to those of its natural distribution. Some information concerns studies on grand fir plantations in Europe and their influence on chosen components of the ecosystem. During the study, 63 taxa of vascular plants, mosses and liverworts, 46 taxa of fungi and 110 of invertebrates were found.   https://www.forestry.actapol.net/volume10/issue4/4_4_2011.pdf Abies grandis grand fir biodiversity vascular plants fungi nematodes mites insects