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    Wyświetlanie 1-9 z 9
    Tytuł:
    Biota śluzowców (Myxomycetes) lasu użytkowanego gospodarczo w okolicy przysiółka Wyrchczadeczka (Beskid Śląski)
    Slime moulds biota of the commercial forest near Wyrchczadeczka (Beskid Slaski, West Carpathian Mts)
    Autorzy:
    Bochynek, A.
    Drozdowicz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/995541.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Beskid Slaski
    lasy gorskie
    przysiolek Wyrchczadeczka
    lasy gospodarcze
    sluzowce
    Myxomycetes
    roznorodnosc gatunkowa
    wykaz gatunkow
    slime moulds
    biota
    spruce forest
    commercial forest
    beskid śląski
    west carpathian mts
    Opis:
    A few reports are concerned with sime moulds biota of anthropogenic areas. Majority of areas in the Beskid Śląski lower montane forest belt is covered by monoculture of spruce, planted in the nineteenth century. Intensive field studies were carried out during two vegetative seasons of 2006 and 2007 on the thirty hectares area of planted spruce forest. Two hundred forty four specimens were collected – single sporangium and its groups. In the early spring in 2006 and 2007 five species associated with melting snow were recognized. A total of thirty four species were recorded, among them: Fuligo septica (L.) F. H. Wigg., and Lycogala epidendrum (L.) Fr. were the most common. Ten taxa were very rare. They were noticed only once. Lamproderma echinosporum Meyl. and Stemonitopsis gracilis (G. Lister) Nann.−Bremek. were recorded for the first time in Poland.
    Źródło:
    Sylwan; 2012, 156, 01; 57-63
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tempo wzrostu jarzębiny (Sorbus aucuparia L.) a rozpad górnoreglowego drzewostanu świerkowego
    The growth rate of rowan [Sorbus aucuparia L.] versus subalpine spruce stand break down
    Autorzy:
    Żywiec, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1012925.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    wzrost roslin
    odnowienia lasu
    Babia Gora
    tempo wzrostu
    drzewostany swierkowe
    lasy gorskie
    Sorbus aucuparia
    zamieranie lasow
    regiel gorny
    lesnictwo
    jarzab pospolity
    luki drzewostanowe
    babia góra national park
    sorbus aucuparia l.
    subalpine spruce forest
    growth rate
    stand breakdown
    Opis:
    The paper presents temporal relationships between the breakdown of tree stand in the subalpine spruce forest and the regeneration of rowan (Sorbus aucuparia L) as well as the rate of height growth of rowan stems. Rowans growing in a large gap recruited mostly from the seedling and sapling bank established under the living spruce stand before its breakdown. The rate of stem height growth was five times higher after the gap formation than under spruce stand. In spite of considerable age differences of rowans the variability in their final height after over 20 years of rapid growth was small.
    Źródło:
    Sylwan; 2008, 152, 04; 38-45
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Planowanie hodowlane z wykorzystaniem metody BDq w drzewostanach świerkowych na siedliskach bagiennych
    Silvicultural planning in spruce mire forests by the means of the BDq method
    Autorzy:
    Drozdowski, S.
    Andrzejczyk, T.
    Bielak, K.
    Buraczyk, W.
    Gawron, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/990869.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    siedliska lesne
    siedliska bagienne
    drzewostany swierkowe
    swierk pospolity
    Picea abies
    struktura drzewostanu
    planowanie hodowlane
    metoda BDq
    close−to−nature silviculture
    equilibrium model
    norway spruce mire forest
    silvicultural planning
    Opis:
    This paper addresses problems associated with the silvicultural planning in the Norway spruce mire forests (Sphagno girgensohnii−Piceetum Polak. 1962) that are characterized by an uneven−aged structure and a high degree of irregularity at small scale. Based on detailed inventory using 30 permanent circular sample plots in two control units located in the Augustów Forest (NE Poland), the BDq method was employed for determining future silvicultural activities of the current forest management cycle. The equilibrium models are based on diameter distributions and have the following parameters, depending on site conditions: B=28 m²/ha; q−factor=1.32 and D=51 cm in the case of poorer forest site type (S.−P. typicum) and 55 cm more fertile one (S.−P. thelypteridetosum).
    Źródło:
    Sylwan; 2014, 158, 10; 733-742
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hodowlane kryteria kwalifikowania drzewostanów do przebudowy
    The silvicultural criteria of qualifying for conversion
    Autorzy:
    Zajączkowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1018655.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    kryteria kwalifikacji
    przebudowa drzewostanow
    lesnictwo
    cele hodowlane
    conversion
    pine and spruce stands
    broadleaved forest habitats
    Opis:
    The paper presents the results of research carried out by Polish and foreign scientists on the impact of pine and spruce stands on fertile forest habitats and formulates recommendations for the rationalisation of conversion operations in these stands.
    Źródło:
    Sylwan; 2006, 150, 12; 27-32
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przestrzenne rozmieszczenie zimujących chrząszczy kornika drukarza (I. typographus L.) i kornika zrosłozębnego (I. duplicatus C. R. Sahlb.)
    Spatial distribution of hibernating adults of eight-toothed spruce bark beetle (I. typographus L.) and double-spined bark beetle (I. duplicatus C. R. Sahlb.)
    Autorzy:
    Onysko, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/973843.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Ips duplicatus
    Ips typographus
    entomologia lesna
    kornik drukarz
    rozmieszczenie przestrzenne
    stadia rozwojowe
    zimowanie
    zimowiska
    kornik zrosłozębny
    leśnictwo
    stadia zimujące
    szkodniki roślin
    pine−spruce stands
    forest litter and soil
    bark
    forest protection
    curculionidae
    scolytinae
    Opis:
    Field research was conducted in selected pine−spruce stands of the Oleśnica Śląska Forest District (SW Poland), where in 2004 intensive mortality of trees infested by I. typographus and I. duplicatus was observed. The results show that most I. typographus beetles hibernated under the bark of sample trees (71.2%). Most I. duplicatus beetles hibernated in forest litter and soil (90.5%). In the litter and soil samples, the largest number of hibernating beetles (of both species) were observed in the close neighborhood of tree stems, within the radius of up to l m (96.2% and 94.0% respectively). The estimated number of beetles hibernating in the forest litter and soil under the canopy of a single sample tree was 383 and 61, respectively. In bark samples I. typographus hibernated only as adult (imago).
    Źródło:
    Sylwan; 2011, 155, 01; 21-30
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Problemy ochrony lasów prywatnych Małopolski ze szczególnym uwzględnieniem górskich
    Protection problems of private forests in Malopolska with special reference to mountain spruce stands
    Autorzy:
    Król, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009067.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Malopolska
    lasy prywatne
    ochrona lasu
    drzewa lesne
    swierk
    Picea
    szkodniki roslin
    kambiofagi
    owady
    kornik drukarz
    Ips typographus
    rytownik pospolity
    Pityogenes chalcographus
    wystepowanie
    drzewostany swierkowe
    zamieranie lasow
    choroby roslin
    forest ownership
    forest land community
    spruce stands
    bark beetles
    poland
    Opis:
    The paper presents results of the research carried out between 2004 and 2008 on the effect of ownership category on the threat to spruce stands from cambiophagous insects. The share of dead trees in the stands under individual and community ownership has been determined. It has been shown that the existing threats to spruce stands from the European bark beetle and the need for their salvation require more attention to be given to the training of forest owners in prevention and protection.
    Źródło:
    Sylwan; 2010, 154, 10; 694-704
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Warunki glebowe świerczyny nawapiennej (Polysticho-Piceetum) w górnej części regla dolnego Tatr
    Soil conditions of spruce forest on limestone (Polysticho-Piceetum) in the upper part of the lower montane zone in the Tatra Mts.
    Autorzy:
    Lasota, J.
    Blońska, E.
    Zwydak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989584.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    siedliska lesne
    Tatry
    regiel dolny
    swierczyna nawapienna
    zespol Polysticho-Piceetum
    warunki siedliskowe
    warunki glebowe
    gleby lesne
    uziarnienie gleby
    wlasciwosci fizykochemiczne
    wlasciwosci sorpcyjne
    forest sites
    soil properties
    norway spruce
    limestone
    Opis:
    The aim of this paper is to present the properties of soils and topography conditions of Norway spruce forests growing on the limestone (Polysticho−Piceetum) in the upper part of the lower montane zone. The study was conducted in the Tatra Mts. (southern Poland) on six study plots reflecting the living conditions of spruce forest on limestone. On each plot the topography conditions were described, soil pits were dug and samples for laboratory analysis were collected. The following characteristics were determined in the soil samples: pH, the content of C and N, particle size, the content of Ca, Mg, Na and K, exchangeable acidity, aluminum content and hydrolityc acidity. For each study plot the stand characteristics were measured (diameter at breast height and height). The Soil Trophic Index for mountain areas (SIGg) was calculated on the basis of <0.02 mm fraction content, the sum of exchangeable base cations, soil acidity and the total content of N and C organic in the humus−mineral horizon. Polysticho−Piceetum stands in the upper part of the lower zone between 1000 and 1200 m above sea level developed in the unique geomorphological and geological conditions. They covered very shallow weathered fragments of limestone or steep slopes with fine−grained scree of carbonate rocks. Rendzic Hyperskeletic Leptosols (Humic) and Calcaric Lithic Leptosol are soils typical for analysed spruce stands. Character of site was reflected in the SIGg values that ranged between 15 and 20. The moder−mull and tangel−mor humus type was found on the majority of the investigated plots. Low fertility of soil was confirmed by the site index of analysed stands (IVth and Vth class).
    Źródło:
    Sylwan; 2016, 160, 05; 407-415
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Budowa, struktura i dynamika górnoreglowych borów świerkowych o charakterze pierwotnym w dolinach Pańszczycy i Stawów Gąsienicowych (Tatrzański Park Narodowy) w okresie kontrolnym 1991 - 2002
    The structure, composition and dynamics of subalpine primeval spruce forests in the Panszczyca Valley and the Stawy Gasienicowe Valley [in the Tatra National Park] during the control period 1991-2002
    Autorzy:
    Karczmarski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1016108.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    dynamika drzewostanu
    sklad gatunkowy
    Tatrzanski Park Narodowy
    drzewostany swierkowe
    Dolina Panszczycy
    lesnictwo
    proces dorastania
    struktura drzewostanu
    zasobnosc drzewostanu
    budowa drzewostanu
    Dolina Gasienicowa
    regiel gorny
    proces ubywania
    przyrost drzewostanu
    stand structure
    stand dynamics
    natural development cycle
    primeval forest
    spruce
    subalpine zone
    poland
    Opis:
    The research presents changes (in the period of 1991−2002) in species composition, volume, dbh structure, height and storey structure, increment value, self−thinning rate and regeneration dynamics of the primeval−type spruce forests of the upper montane zone in the Pańszczyca Valley and the Stawy Gąsiennicowe Valley in the Tatra National Park on the example of three permanent experimental plots. The stands under study (as compared with other stands in the Polish Carpathians from the similar altitudinal zone, feature high productivity expressed by the current annual volume increment value of 4.1−4.5 cu.m./ha, diverse structure and composition depending on the represented stages and phases of stand development, as well as high stand stability.
    Źródło:
    Sylwan; 2007, 151, 11; 41-59
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Problem masowego zamierania drzewostanów świerkowych w Leśnym Kompleksie Promocyjnym "Puszcza Białowieska"
    Problem of a massive dying-off of Norway spruce stands in the 'Bialowieza Forest' Forest Promotional Complex
    Autorzy:
    Brzeziecki, B.
    Hilszczański, J.
    Kowalski, T.
    Łakomy, P.
    Małek, S.
    Miścicki, S.
    Modrzyński, J.
    Sowa, J.
    Starzyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/985913.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lesne kompleksy promocyjne
    Lesny Kompleks Promocyjny Puszcza Bialowieska
    drzewostany swierkowe
    stan sanitarny
    zagrozenia drzewostanow
    szkodniki roslin
    kornik drukarz
    Ips typographus
    dynamika populacji
    gradacja
    drewno martwe
    grzyby patogeniczne
    zagrozenie pozarowe
    zamieranie lasow
    norway spruce bark beetle infestation
    białowieża forest
    ecosystem stability
    multifunctional forestry
    natura 2000 plc200004
    natural values
    world heritage site
    Opis:
    The Białowieża Forest (BF) is in many respects an exceptional object, of a great importance for nature protection and forest management, at the international scale. The BF plays also a key role from the point of view of regional development and welfare of local community. In the last period, a big threat for multiple values of the BF has arisen, as a result of enormous bark beetle infestation, which started in 2012 and has killed 1.4 million m3 of spruce trees. In the paper, first, a brief overview of the general history of the BF and an account of long−term human impacts on its functioning and structure is provided. Next, the history of bark beetle infestations in the BF is analysed. It is shown that, in the period 1992−2007, the average volume of spruces killed by bark beetle amounted on average to 20,000 m3 of wood annually. During that period practically all dead trees were removed from the forest by means of salvation cuttings. Starting from 2008, more and more trees infested by European spruce bark beetle were left in the forest, in a result of a pressure exerted by environmental groups. In 2012, Minister of Environment decided to reduce the allowable cut, determined in forest management plans elaborated for the managed part of the BF, from 107,000 to 48,500 m3/year. This decision, along with several other regulations and restrictions, made in practice impossible to stop the development of a current bark beetle infestation, which started in 2011 and intensified during the next 6 years (solely in 2016 bark beetles killed 480,000 m3 of spruce trees). In the paper, the most important implications and consequences of the current situation are briefly summarized and discussed. A special attention is given to the problems concerning: 1) protection of Natura 2000 species and sites (endangered by bark beetle outbreak), 2) a negative influence of large amounts of spruce deadwood on forest soils, 3) threats caused by pathogenic fungi, 4) question of public safety, 5) fire hazard, and 6) economical dimension. The legal and socio−economical foundations of the functioning of Hajnówka, Browsk and Białowieża forest districts comprising the managed part of the BF, as well as their most important environmental and social consequences are discussed too. Among others, it is indicated that, under current conditions of the BF, human intervention plays a key role in maintaining stable and compositionally diverse woodland communities. Finally, several suggestions and recommendations are provided, aimed at, in the short term, breaking off the current bark beetle outbreak, and, in the long term, at maintaining a multifunctional character of the BF and its ability to provide all important ecosystem services on a sustainable basis.
    Źródło:
    Sylwan; 2018, 162, 05; 373-386
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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