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    Tytuł:
    Lasotworcza rola swierka pospolitego [Picea abies L.Karst.] Puszczy Knyszynskiej i Puszczy Bialowieskiej
    Autorzy:
    Andrzejczyk, T.
    Szeligowski, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/824314.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    wystepowanie
    gatunki lasotworcze
    Picea abies
    lesnictwo
    Puszcza Bialowieska
    Puszcza Knyszynska
    swierk pospolity
    drzewa lesne
    Źródło:
    Sylwan; 2000, 144, 02; 5-18
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ przygotowania gleby na zagęszczenie, wzrost i jakość samosiewów sosny w warunkach podokapowych
    The effect of soil preparation on density, growth and quality of natural regeneration of pine under the canopy
    Autorzy:
    Andrzejczyk, T.
    Drozdowski, S.
    Szeligowski, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026387.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    wzrost roslin
    samosiewy
    hodowla lasu
    przygotowanie gleby
    lesnictwo
    odnowienia naturalne
    odnowienia podokapowe
    scots pine
    natural regeneration
    soil preparation
    Opis:
    The studies were conducted in the years of 1997−2001. The effect of four methods of soil preparation (ploughing with double mouldboard plough LPZ−75, disc plough PTL−2, disc harrowing and ridge formation) on natural regeneration of pine under the canopy shelter was analysed. Significant differences in the density, height and vitality of seedlings in the variant II (ploughing with disc plough) and variant IV (ridge formation) were found in the second and third year of studies. In the following years the differences between the variants were insignificant due to the heavy damage of seedlings caused by the cockchafer larvae. Neither of the methods applied protected the seedlings against this damage.
    Źródło:
    Sylwan; 2003, 147, 03; 19-27
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiana wielkosci krzywizn u modrzewi roznych pochodzen na powierzchni doswiadczalnej w Rogowie
    Changes in the size of curvature in larch trees from different provenances at the experimental site in Rogow
    Autorzy:
    Szeligowski, H.
    Andrzejczyk, T.
    Szkup, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/45996.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    drzewa lesne
    proweniencje
    modrzew europejski
    Larix decidua
    strzala drzew
    krzywizna
    Źródło:
    Leśne Prace Badawcze; 2010, 71, 1; 75-80
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ ogłowienia i przerzedzenia na wzrost grabu (Carpinus betulus L.) w młodniku dębowym (Quercus petraea (Matt.) Liebl.)
    Influence of decapitating and thinning on growth of hornbeam (Carpinus betulus L.) in the oak (Quercus petraea (Matt.) Liebl.) thicket
    Autorzy:
    Andrzejczyk, T.
    Brzeziecki, B.
    Szeligowski, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/979514.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    drzewostany mieszane
    drzewostany grabowo-debowe
    mlodniki
    grab pospolity
    Carpinus betulus
    zabiegi pielegnacyjne
    przerzedzanie
    oglawianie
    wzrost roslin
    przyrost wysokosci
    przyrost piersnicy
    interspecific competition
    pre−commercial thinning
    decapitating
    mixed stand
    Opis:
    The aim of this study was to quantify 4−year growth and increment of 11− to 15−year−old, artificially regenerated hornbeam (Carpinus betulus L.) playing the role of the tending (nursery) species in the oak stand of the same age, after the silvicultural treatments aimed at reducing its competition against the oak. The study included three types of experimental treatments: decapitating of all hornbeam trees (OG), schematic reduction of hornbeam density (R50, removal of every second hornbeam in a row) and control (K, without treatment). The trial stand is located in Rogów (51.827023° N, 19.922315° E) and was established in 2004 on a moderately fertile site. The experiment was carried out in the spring 2013 (9 years after planting). Height and breast height diameter (dbh) of trees were measured every two years. During the study period, the height increment of decapitated trees was significantly larger than in R50 and K variants, while the dbh increment of trees in R50 variant was significantly larger than in K and OG variants. The height increment of hornbeam in R50 and OG variant and the dbh increment in R50 variant were positively correlated with height and diameter of trees before the treatment, while the dbh increment after decapitating was negatively correlated with tree dimensions before treatment. The decapitating treatment reduced the competitive ability of hornbeam more effectively than the schematic thinning removing 50% of hornbeam trees. After 4 years in the first case, oaks were on average 1 m higher than hornbeams, and in the second case, there was an opposite situation. In order to improve the effectiveness of the thinning treatment, a selective cutting should be performed (removal of the largest hornbeams), and in order to slow down the regeneration of hornbeams after decapitating, the treatment should be carried out during the top of the growing season.
    Źródło:
    Sylwan; 2019, 163, 03; 179-187
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wysokość siedmioletnich odnowień dębowych na gniazdach w różnych warunkach siedliskowych
    The height of seven-year-old oaks growing in gaps in different forest habitats
    Autorzy:
    Bolibok, L.
    Andrzejczyk, T.
    Drozdowski, S.
    Szeligowski, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/45960.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    hodowla lasu
    rebnie gniazdowe
    odnowienia lasu
    drzewa lesne
    dab szypulkowy
    Quercus robur
    wysokosc drzew
    warunki siedliskowe
    wielkosc gniazd
    zyznosc siedliska
    Źródło:
    Leśne Prace Badawcze; 2011, 72, 2
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sposób powstawania, struktura i produkcyjność drzewostanów bukowo-modrzewiowych w Polsce
    Polish beech-larch stands: their structure, productivity and processes of generation
    Autorzy:
    Andrzejczyk, T.
    Bolibok, L.
    Drozdowski, S.
    Szeligowski, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/45706.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    drzewostany mieszane
    drzewostany dwupietrowe
    drzewostany bukowo-modrzewiowe
    zasobnosc drzewostanu
    struktura drzewostanu
    wiek drzew
    buk zwyczajny
    Fagus sylvatica
    odnowienia lasu
    Źródło:
    Leśne Prace Badawcze; 2011, 72, 4
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ warunków siedliskowych na zróżnicowanie wysokości dębu na gniazdach
    Effect of habitat conditions on the variation of oak height in the gaps
    Autorzy:
    Andrzejczyk, T.
    Bolibok, L.
    Buraczyk, W.
    Drozdowski, S.
    Szeligowski, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/991003.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    rebnie zupelne gniazdowe
    hodowla lasu
    odnowienia lasu
    odnowienia na gniazdach
    drzewa lesne
    dab szypulkowy
    Quercus robur
    wzrost roslin
    warunki siedliska
    siedliska lesne
    bor mieszany swiezy
    las mieszany swiezy
    las swiezy
    pedunculate oak
    clear−cut gap
    plantations
    forest regeneration
    patch cutting system
    Opis:
    The paper presents the study on the height of 10−12−year−old pedunculate oak regeneration in clear−cut gaps in three fertility variants: mezotrophic of poorer productivity (fresh mixed coniferous forest – BMśw), mezotrophic of higher productivity (fresh mixed deciduous forest – LMśw) and eutrophic (fresh deciduous forest – Lśw). BMśw and LMśw were represented by two locations: Gostynin (G) and Parczew (P), while Lśw – by one: Czarna Białostocka (CzB). We analysed the variation of oak height in the patches along the north−south (N−S) and east−west (E−W) gap axes. In each location 3−5 gaps were selected and measurements taken on three transects along the N−S axis located in the western (W), central (C) and eastern (E) part. Significant differences in oak height were found along the N−S axis. Oaks in the BMśw and LMśw habitats in the south−central part, and those in the Lśw habitat in the centre−northern part of the patch were the highest. The height growth of oaks on sandy soils (BMśw, LMśw) was found to be limited by moisture deficit, while on loamy soils (Lśw) – by light deficiency. The differences in oak height along the E−W axis were smaller and less apparent, indicating a tendency towards the reduction of their height growth in the central part of the gap.
    Źródło:
    Sylwan; 2014, 158, 06; 404-413
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Jakość hodowlana buka zwyczajnego (Fagus sylvatica L.) po 20 latach wzrostu na powierzchni proweniencyjnej w Nadleśnictwie Brzeziny
    Silvicultural quality of common beeches (Fagus sylvatica L.) after 20 years of growth on a provenance plot in Brzeziny Forest District
    Autorzy:
    Szeligowski, H.
    Buraczyk, W.
    Drozdowski, S.
    Andrzejczyk, T.
    Stępniarek, M.
    Dzwonkowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/980226.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    drzewa lesne
    buk zwyczajny
    Fagus sylvatica
    jakosc hodowlana
    wzrost roslin
    pokroj
    doswiadczenia proweniencyjne
    Nadlesnictwo Brzeziny
    provenance plots
    growth traits of trees
    tree habit
    silvicultural quality
    Opis:
    Paper presents an analysis of phenotypical variation and an evaluation of silvicultural quality of progeny from 27 beech stands around Poland that grow on the provenance plot in the Brzeziny Forest District (51.791997°N, 19.813841°E). The trial commenced in spring 1996, on the basis of 2−year−old saplings with covered root systems. A randomised block method with 3 replications was applied, with subsequent measurements and analyses carried out in 2015, following 20 years of growth. The considered features included height, breast−height diameter, crown habit, trunk curvature and height of branching. Single−factor analysis of variance and Tukey’s HSD test were applied to determine the significance of differences among provenances. The largest mean height was attained by beeches originating from Gdańsk, Szczecinek and Bierzwnik. The least−tall beeches were in turn those whose origins were in Tomaszów, Łagów and Grodzisk. The greatest intra−population variation in height characterised the beeches from Gryfino and Krucz, while the most limited variation was noted for Gdańsk population. The beeches of greatest girth were again those deriving from Gdańsk, Bierzwnik and Szczecinek populations, as well as the one from Kwidzyn 15. The lowest values for diameter at breast height were again noted for the Grodzisk, Tomaszów and Łagów provenances. Marked intra−population variation in this feature characterised trees from the Gryfino, Bieszczady National Park (42), Zdrojów and Krucz provenances. The populations also differered in relation to analysed more−qualitative features. The group of populations prized most in terms of their overall silvicultural quality included Gryfino, Grodzisk, Zdrojów, Bieszczady National Park, Bierzwnik and Szczecinek provenances. In contrast, only low quality was manifested by beeches from Tomaszów, Rymanów, Wejherowo, Młynary, Golub− −Dobrzyń and Kwidzyn provenances. In general, populations originating from the north (especially Pomerania) achieved better growth and a more favourable quality evaluation than those from the south, and sites located near the range limits of the species (fig. 7). The obtained results show that northern Poland boasts the most plastic populations of beech. Equally, it was not possible to establish that populations of local origin were superior in terms of growth to those originating in more far−flung parts of Poland. Furthermore, assessments of different populations in terms of their growth and quality features often proved highly disparate.
    Źródło:
    Sylwan; 2019, 163, 07; 590-600
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura i dynamika wielogeneracyjnych starodrzewów sosnowych występujących w obszarach ochrony ścisłej Kaliszki i Sieraków w Kampinoskim Parku Narodowym. Część 2. Procesy zamierania i dorastania oraz ich wpływ na rozkład grubości drzew
    Structure and dynamics of uneven−aged, Scots pine−dominated, old−growth stands in Kaliszki and Sieraków strict reserves in Kampinos National Park. Part 2. Tree mortality and recruitment processes and their effects on tree diameter distributions
    Autorzy:
    Brzeziecki, B.
    Zajączkowski, J.
    Olszewski, A.
    Bolibok, L.
    Andrzejczyk, T.
    Bielak, K.
    Buraczyk, W.
    Drozdowski, S.
    Gawron, L.
    Jastrzębowski, S.
    Szeligowski, H.
    Żybura, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/979128.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    demographic non−equilibrium
    diameter structure
    long−term study
    old−growth forest
    permanent study
    plot
    scots pine
    strict protection
    Opis:
    Two fundamental demographic processes (tree recruitment and mortality) are analyzed for forest stands growing on permanent study plots located in strictly protected Scots pine−dominated, old−growth stands of Kampinos National Park (central Poland). The major implications of the observed demographic trends for the general shape of tree size distributions are determined, as well. During the past ca 30 years, in the stands sampled, there was a pronounced lack of balance between mortality and recruitment processes. Mortality rate was eight times higher than recruitment rate. Eventually, there was a net significant decline in population density, observed for all major tree species, including Scots pine, pedunculate oak, silver and downy birch, and black alder. As mortality processes affected mainly smaller trees, there was also a significant deterioration of the general demographic status of most important tree species. This effect was shown by the change of the overall shape of diameter distributions over the study period: from reverse J−shaped to flat curves running nearly parallel to X−axis. The values of recruitment rates were markedly lower, and the values of mortality rates – significantly higher, than analogous values characterizing comparable forests (e.g., those obtained for the natural stands of Białowieża National Park). Low recruitment rates, as obtained for Kampinos stands, suggest that presently, in the local, Scots pine−dominated, old−growth stands, the general conditions for forest regeneration and for maintaining a long−term demographic stability are unfavorable. Most probably, the regeneration of this type of forest has an episodic, ‘wave−like’ character and corresponds to the ‘catastrophic’ model, according to which the successful regeneration of current dominants (especially Scots pine, silver and downy birch, black alder) must be preceded by a stand−initiating (stand−replacing) disturbance, leading to total or partial, but heavy, destruction of the currently existing stand. At the moment, it would be difficult to predict, however, if and when such a disturbance will affect the stands under investigation. Thus, we predict that in the nearest future at least, the state of overall demographic unbalance will continue or even increase.
    Źródło:
    Sylwan; 2020, 164, 06; 443-453
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura i dynamika wielogeneracyjnych starodrzewów sosnowych występujących w obszarach ochrony ścisłej Kaliszki i Sieraków w Kampinoskim Parku Narodowym. Część 1. Zróżnicowanie gatunkowe, zagęszczenie i pierśnicowe pole przekroju
    Structure and dynamics of uneven−aged Scots pine−dominated old−growth stands in Kaliszki and Sieraków strict protection areas in the Kampinos National Park. Part 1. Species composition, tree density and basal area
    Autorzy:
    Brzeziecki, B.
    Zajączkowski, J.
    Olszewski, A.
    Bolibok, L.
    Andrzejczyk, T.
    Bielak, K.
    Buraczyk, W.
    Drozdowski, S.
    Gawron, L.
    Jastrzębowski, S.
    Szeligowski, H.
    Żybura, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/978936.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    forest dynamics
    long−term research
    old−growth forest
    permanent study plot
    strict protection
    tree
    species composition
    Opis:
    The paper describes changes, which took place over the last 30 years in old−growth forest stands occupying two permanent research plots, established in the Kaliszki and Sieraków strict protection areas in the Kampinos National Park (central Poland). Both plots have a form of ecological transects. The Kaliszki plot is 20 m wide and 700 m long (1.40 ha), while the Sieraków plot (total area of 2.56 ha) consists of two parts: main (40×460 m) and side (40×180 m) transect. In the Kaliszki plot, the stand measurements were conducted in 1993, 2007, and 2017, while in the Sieraków plot – in 1989, 1994, 2006, and 2017. For every tree with breast height diameter (DBH) 5 cm, species identity, DBH and spatial coordinates were determined. Starting from the second census, all trees which had died (‘losses’), as well as trees which exceeded the DBH threshold (‘gains’) since the previous record were noted, as well. The major tree species occurring on sample plots are Scots pine (Pinus sylvestris), pedunculate oak (Quercus robur), silver and downy birch (Betula sp.), and black alder (Alnus glutinosa). During the study period, the overall tree density declined by ca. 50%. The diminishing trends occurred for all dominant tree species. In contrast to major, dominant tree species, the demographic status of a group of minor tree species (lime, hornbeam and maple) was much more stable. One may even speak about some expansion in this case. Particularly, hornbeam density increased rapidly in the period 2006−2017 in some areas of the main transect located in the Sieraków plot. The future studies will show if this tendency will be maintained and will include other regions of sample plots. Assuming a lack of significant disturbances, one may expect that the stands growing on research plots will rather slowly change in the nearest future. Most dynamics will have a quantitative and not qualitative character. One may anticipate, for example, a growing role of pedunculate oak at the expense of Scots pine, however, considering that the two species are rather long−living, they will probably for a long time keep their dominant roles in the stand canopies.
    Źródło:
    Sylwan; 2020, 164, 05; 392-403
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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