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    Wyświetlanie 1-9 z 9
    Tytuł:
    Charakterystyka zmian w stanie lasów Puszczy Noteckiej
    The description of changes in the state of the Notecka Primeval Forest
    Autorzy:
    Miś, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026465.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Puszcza Notecka
    gospodarka lesna
    lasy
    lesnictwo
    urzadzanie lasu
    notecka forest
    forest management
    forest condition
    trends of changes
    Opis:
    The paper provides the results of the subsequent forest management plans conducted for Forest Districts lying on the grounds of the Notecka Primeval Forest. The objective of the studies was to define the trends of changes of indicators used in the assessment of the state of forests and forest management. The obtained results refer to the longer period of time (44 years) and account for important changes in the structure and functioning of the Notecka Primeval Forest.
    Źródło:
    Sylwan; 2003, 147, 06; 34-46
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wykorzystanie zasobów Puszczy Noteckiej przez przemysł drzewny
    Utilisation of resources of the Notecka Forest by woodworking industry
    Autorzy:
    Lis, W.
    Popyk, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/973081.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany
    Puszcza Notecka
    struktura wiekowa
    surowce drzewne
    baza surowcowa
    skład gatunkowy
    przemysł drzewny
    zasoby leśne
    leśnictwo
    forest resources
    utilisation
    woodworking industry
    Notecka /forest
    Opis:
    The paper focuses on the characterisation of forest resources and harvesting, sale and distribution of roundwood for woodworking industry, wood−derivative board production plants and pulp and paper indus−try in the Notecka Forest. The age and species structure of stands indicates that the analysed forest complex is and in the future can be an important supplier of timber for sawmills and pulp and paper mills, especially for the Wielkopolska region. The roundwood offered is of an ever more higher quality. A regular increase in proportion of trees in older age classes has caused that the Notecka Forest becomes a source of valuable timber for the sawmill and plywood industries. However, the long−term forms of cooperation between large sawmills and the State Forests Holding have to be perfected.
    Źródło:
    Sylwan; 2003, 147, 11; 86-93
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Właściwości fizyczne drewna sosny zwyczajnej z Puszczy Noteckiej
    Physical properties of Scots pine wood from the Notecka Forest
    Autorzy:
    Roszyk, E.
    Moliński, W.
    Kusiak, W.
    Prądzynski, W.
    Zborowska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989533.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    sosna zwyczajna
    Pinus sylvestris
    drewno sosnowe
    wlasciwosci fizyczne
    proweniencje
    Puszcza Notecka
    Polska
    pinus sylvestris
    wood physical properties
    poland
    Opis:
    The aim of the study was to determine the relationship between the quality of habitat and the quality of Scots pine wood. We focused on the wood from mature stands growing on poor habitats on inland dunes in the Notecka Forest and on former farmlands (central and western Poland). We selected 12 trees, from which we took wood samples for tree ring investigation. We determined the age of trees, width of increments, share of late− and hardwood, and the moisture and density of the wood. Samples were weighed with 0.001 g accuracy and their volume was determined with hydrostatic method. Next, samples were dried and their mass was determined again. The obtained results were used to calculate: initial and conventional wood density as well as moisture content of each sample. Properties of the examined wood derived both from Notecka Forest as well as from farmlands were advantageous from the point of view of its technical quality. Mean width of annual increments, both near−pith and near−circumferential, ranged from 1.70 to 1.99 mm and qualified analysed wood as the narrow−ringed. The examined wood characterised high proportion of latewood, close to the upper limit given in literature for standard conifer wood and by high density. Mean share of latewood in the near−pith increments ranged from 18.9 to 30.6%, while in near−circumferential increments – from 34.3 to 45.7%. The highest average conventional density amounted to 507 kg/m³, whereas the lowest – to 466 kg/m³. The obtained results revealed that the wood from the Notecka Forest had favorable properties in terms of technical quality. It had the characteristics of slow−grown wood and was characterized by a high proportion of latewood in annual increments and a conventional density higher than the one reported in the literature.
    Źródło:
    Sylwan; 2016, 160, 07; 547-555
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Badania nad zachowaniem zasobów genowych sosny zwyczajnej z Puszczy Nadnoteckiej
    Conservation of Scots pine genetic resources in the Notecka Primeval Forest
    Autorzy:
    Wesoły, W.
    Urbański, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026655.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zasoby genowe
    Puszcza Notecka
    hodowla lasu
    sosna zwyczajna
    lesnictwo
    uprawy rodowe
    Pinus sylvestris
    drzewa lesne
    scots pine
    family test
    heritability
    Opis:
    The results of measurements of a 5−year family experiment Scots pine (21 families) located on three study sites showed significant variation in tree height and the length of the last shoot increment between families and locations. The analysis pointed out to the low heritability values.
    Źródło:
    Sylwan; 2003, 147, 08; 61-66
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wprowadzanie domieszek drzew i krzewów do upraw sosnowych w Puszczy Noteckiej
    Introduction of admixed species of trees and shrubs into the pine forest cultures in the Notecka Forest
    Autorzy:
    Kocjan, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026447.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    wzrost roslin
    Puszcza Notecka
    gatunki domieszkowe
    lesnictwo
    drzewa lesne
    uprawy lesne
    admixture's size
    admixture form
    admixed species
    Opis:
    Materials presented in this paper were collected from different experimental plots established in 1968, 1975, 1980 and 1986. It was stated that the admixtures of different tree and shrub species might be introduced into the poor sites in the Notecka Forest to the greater degree that it was assumed before. The successfully increase the forest productivity on such forest sites. Gray alder showed the best influence on the growth of Scots pine from many tested species of trees and shrubs. This effect was better when the admixture accounts for 20% than 10%. From the rest of the admixed species the best growth was stated for: silver birch, gray alder, black cherry, European larch and willow.
    Źródło:
    Sylwan; 2003, 147, 06; 52-59
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena stanu nawierzchni leśnej drogi tłuczniowej w Puszczy Noteckiej po dwuletnim okresie eksploatacji
    Assessment of the state of the macadam forest road in the Notecka Forest after two years of exploitation
    Autorzy:
    Kamiński, B.
    Czerniak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026439.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    inzynieria lesna
    nosnosc
    nawierzchnie drogowe
    Puszcza Notecka
    lesnictwo
    drogi lesne
    drogi tluczniowe
    forest road
    macadam pavement
    bearing capacity
    pavement deflection
    Opis:
    The objective of the studies was to assess the bearing capacity of macadam forest roads made from ungraded crushed stone and two−layered macadam depending on earth−water conditions of the subgrade. The effect of the synthetic reinforcement of natural subgrade on the bearing capacity was also examined. Deflection in the road pavement after a two−year period of exploitation was assessed. The size of deflection was compared with the deflection module and the type of the subgrade and materials used for road construction were analysed
    Źródło:
    Sylwan; 2003, 147, 06; 14-21
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ efektu brzegowego drogi na cechy drzewostanów sosnowych Puszczy Noteckiej
    Edge-effect of the road on the Scots pine stands characteristics in the Notecka Forest
    Autorzy:
    Grajewski, S.M.
    Mizera, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/989417.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Puszcza Notecka
    drogi publiczne
    drogi o malym natezeniu ruchu
    oddzialywanie na srodowisko
    efekt brzegowy
    drzewostany sosnowe
    cechy taksacyjne
    zasobnosc drzewostanu
    miazszosc drzew
    road−edge effect
    diameter at breast height
    growing stock
    forest stand value
    very low−volume roads
    Opis:
    The development of the transportation network brings both benefits and threats. Much attention is paid to soil contamination with trace elements, difficulties in animal migration, noise propagation or synanthropisation of the vegetation cover. This paper deals with the effect of provincial road No. 150 on inventory characteristics of neighboring Scots pine stands in the Notecka Forest (western Poland) – one of the larger forest complexes in Europe. Twelve rectangular experimental sites were established perpendicular to the road axis, called belt transects. Each transect consisted of 3−4 plots located at different distances from the pavement edge (fig.). Measurements and estimations were recorded for the plots. Values from all belt transects were approximated within plots at the same distance from the road and then compared using statistical methods. Observations were conducted in Scots pine stands growing on fresh coniferous forest (Bśw) and fresh mixed coniferous forest (BMśw) sites. Reduced stand density that resulted in decreased basal area, volume and growth rates were observed in the immediate vicinity of the road compared to the forest interior. Individual trees were thicker, but more often burdened with defects decreasing timber value. Any considerable effect of the road on tree height wasn't observed. The above mentioned changes were more evident in poorer habitat conditions, while the location in relation to the road had no significant effect. Modified lighting conditions are probably the main cause of these changes. At the edge of Scots pine stands in the Notecka Forest, a unique ecotone has formed under the influence of the provincial road.
    Źródło:
    Sylwan; 2016, 160, 11; 915-922
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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