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    Wyświetlanie 1-13 z 13
    Tytuł:
    Charakterystyka pędu głównego dojrzałej olszy czarnej (Alnus glutinosa (L.) Gaertn.)
    Main shoot characteristics in the mature black alder (Alnus glutinosa (L.) Gaertn.)
    Autorzy:
    Dmyterko, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026549.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    przyrost wysokosci
    lesnictwo
    olsza czarna
    pedy glowne
    Alnus glutinosa
    przyrosty roczne
    drzewa lesne
    main shoot
    height increment
    height growth rate
    alnus glutinosa
    Opis:
    A comparative analysis was made for different measures of location and variation in height increment of the main stem of the mature black alder from the north−eastern region (N) and two southern regions (S1 and S2) of Poland. Correlation was found between annual height increment and tree age and height, as well as the number of the nodes along the shoot and the length of the internode. It was demonstrated that the trees producing long shoots in a given year would produce long shoots also in the successive years.
    Źródło:
    Sylwan; 2003, 147, 08; 11-18
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modele bonitacyjne dla gatunków lasotwórczych Polski opracowane na podstawie tablic zasobności
    Site index models for forest-forming tree species in Poland developed basing on the yield tables
    Autorzy:
    Socha, J.
    Ochał, W.
    Grabczyński, S.
    Maj, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989707.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    gatunki lasotworcze
    modele wzrostu
    siedliska lesne
    modele bonitacyjne
    wskazniki bonitacji
    site index
    site index model
    height growth models
    Opis:
    The objectives of this work was to develop a site index models for main forest−forming tree species in Poland based on data from published yield tables. The research material include growth series of birch, European beech, common oak, red oak, European hornbeam, European ash, Norway maple, small−leaved lime, black alder, trembling aspen, locust, Douglas fir, silver fir, European larch, Scots pine, and Norway spruce. Six algebraic difference models were preliminary selected for the construction of site index model. When selecting a potential models an assumption was made, that the index system should be characterized by good fit to the empirical data, polymorphism, variable asymptotes for different sites and equality of the site index and height at a certain base age. To estimate parameters of individual models all possible combinations among height−age pairs for each tree were used. The selection of the best model was based on fit criteria describing: proportion of variance explained, error range and standard deviation of the residuals. Best fitting model was selected basing on the sum of ranks from individual criteria and for each individual tree species a separate model was selected, which fits the best growth series from the yield tables. For 16 out of 19 species, the best fit statistics were demonstrated by the model developed on the base of the function [2]. Developed models may be used both in forestry practice and forestry research in order to estimate site index for analyzed tree species.
    Źródło:
    Sylwan; 2015, 159, 08; 639-649
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fazy wzrostu wysokości jodły pospolitej z Gór Świętokrzyskich
    Height growth phases of silver fir from the Swietokrzyskie Mountains
    Autorzy:
    Bronisz, K.
    Bijak, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/972764.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    jodla pospolita
    Abies alba
    wzrost roslin
    fazy wzrostu
    przyrost wysokosci
    Gory Swietokrzyskie
    height growth
    phases
    silver fir
    Świętokrzyskie Mountains
    Opis:
    The paper presents an analysis of height growth phases of silver fir from the Świętokrzyskie Mountains. Basing on bilateral relations between average and current height increments, age of their culmination and duration of main (juvenile and sprouting) phases was determined. Empirical data consisted of 61 sample trees that were subjected to the stem analysis. Juvenile stage of fir height growth lasts 30 years, while sprouting phase is quite long as it lasts 45 years on average. Mean age when analyzed trees reach the culmination of current and average height increment equals 50 and 70 years respectively. Course of height growth of fir resembles this of beech, which can be explained by shade tolerance of these species.
    Źródło:
    Sylwan; 2012, 156, 07; 511-517
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Charakterystyka pędu głównego i jego ugałęzienia u sosny zwyczajnej (Pinus sylvestris L.), rosnącej na terenie Nadleśnictwa Olkusz
    Autorzy:
    Bruchwald, A.
    Dmyterko, E.
    Dudzińska, M.
    Kluziński, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1022202.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    ugalezienie
    Nadlesnictwo Olkusz
    sosna zwyczajna
    lesnictwo
    pedy glowne
    Pinus sylvestris
    drzewa lesne
    pinus sylvestris
    industrial emissions
    height growth
    number of branches
    site index
    Opis:
    Decrease in emission of harmful gases and dusts in industrialised regions of Poland triggered improvement of forest health. Results of research dealing with pine stands in the Olkusz Forest District prove that. It was shown that number of side shoots growing out in the whorl rose up to 4−5. Trees developed height increment over two times higher than the model one and as a result height growth rate increased. Examined stands moved to the higher site index class during last 25 years. The need of further research on growth processes of trees being under anthropogenic influence was emphasised.
    Źródło:
    Sylwan; 2005, 149, 03; 3-11
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena zmienności cech adaptacyjnych pięcioletniej jodły pospolitej pochodzeń objętych ochroną na powierzchniach zachowawczych Karpackiego Banku Genów
    Evaluation of the variability of adaptive traits in 5-year-old silver fir progenies from provenances protected on conservation plots in the Carpathian Gene Bank
    Autorzy:
    Kempf, M.
    Sabor, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009677.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    jodla pospolita
    wzrost roslin
    przezywalnosc
    zmiennosc cech
    Karpacki Bank Genow
    Abies alba
    cechy adaptacyjne
    lesnictwo
    drzewa lesne
    carpathian gene bank
    progeny testing
    silver fir
    adaptive traits
    survival
    height growth
    Opis:
    The paper presents the assessment of the adaptive traits (survival rate and height growth) of 5−year−old silver fir one year after planting on conservation plots of the Carpathian Gene Bank (KGB) located in the territory of Wisła, Andrychów, Sucha, Nowy Targ, Krościenko, Nawojowa, Rymanów oraz Bircza forest districts. The conducted studies showed a high (over 90%) survival rate of the tested fir provenances. The growth of the West Carpathian (Beskid Śląski, Beskid Żywiecki, and Beskid Mały) fir provenances was high on the majority of the KGB conservation plots, while the height growth of fir stands from the central part of the Carpathian Mountains (Beskid Wyspowy, Beskid Sądecki, and Beskid Niski) was on an average level. The East Carpathian (Pogórze, Słonne and Bieszczady Mountains) provenances were significantly diversified in terms of the height and did not form a homogenous group.
    Źródło:
    Sylwan; 2009, 153, 10; 651-661
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model wzrostu wysokości buków rosnących w drugim piętrze drzewostanów bukowo-sosnowych
    Height growth model for beech growing in the lower storey of beech-pine stands
    Autorzy:
    Dudzińska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1007387.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany bukowo-sosnowe
    drzewostany dwupietrowe
    drzewa lesne
    buk zwyczajny
    Fagus sylvatica
    wzrost roslin
    modele wzrostu
    height growth
    beech
    two−storied stand
    fagus sylvatica−pinus sylvestris l. stands
    underplanting
    empirical equations
    Opis:
    The study was based on the empirical material collected from 12 beech−pine stands located in the territory of the Miłomłyn (6 plots) and Stare Jabłonki (6 plots) forest districts. On the basis of the collected material, a height growth model was developed for the beech growing in the lower storey of pine stands. The developed functions can be used, inter alia, for the characterisation of top−height growth with stand age, development of a network of site indices, as well as in the studies on the height growth rate.
    Źródło:
    Sylwan; 2012, 156, 05; 343-348
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fazy wzrostu wysokości modrzewia europejskiego (Larix decidua Mill.)
    Phases of height growth for the European larch [Larix decidua Mill.]
    Autorzy:
    Dmyterko, E.
    Bruchwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009432.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    dendrometria
    drzewa lesne
    modrzew europejski
    Larix decidua
    wzrost roslin
    fazy wzrostu
    przyrost wysokosci
    przyrost biezacy
    przyrost przecietny
    wiek kulminacji przyrostu
    height growth phases
    current increment
    average increment
    larix decidua
    Opis:
    The European larch (Larix decidua Mill.) belongs to the group of trees characterised by fast height growth in the juvenile phase of its development. The paper describes the length and variation of height growth phases and the age at which the current and average height increments culminate. The empirical material comprised 178 cut trees that were analysed for their height growth. The trees were collected from the larch stands located in different regions of Poland.
    Źródło:
    Sylwan; 2010, 154, 12; 803-808
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tempo wzrostu wysokości i pierśnicy jodły pospolitej (Abies alba Mill.) w Beskidzie Niskim
    Height and diameter growth rates of silver fir (Abies alba Mill.) growing in Beskid Niski mountains
    Autorzy:
    Bruchwald, A.
    Dmyterko, E.
    Niemczyk, M.
    Łukaszewicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/989756.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    jodla pospolita
    Abies alba
    wzrost roslin
    wysokosc drzew
    piersnice drzew
    przyrost piersnicy
    przyrost wysokosci
    tempo wzrostu
    Beskid Niski
    height growth rate
    diameter growth rate
    spatial diversity of canopy layers
    physical age
    abies alba
    Opis:
    Silver fir is one of the main tree species of mountain and foothill forests in Poland that in optimal conditions forms pure stands with multi−layer structure. The study objective is to present differences in height and diameter growth rates of firs growing in upper stand layers and in the undergrowth. The research was conducted in 12 fir stands located in the Beskid Niski Mts. (southern Poland). In each stand height and diameter at breast height (dbh) were measured for 25 fir trees in order to develop a height curve. The first canopy layer included trees that were higher than ⅔ Hmax established from the height curve of the tree with the largest dbh. Height and diameter were measured on eight trees selected from the first canopy layer. An increment core was extracted at breast height in order to estimate the tree age. From the third canopy layer, which included trees higher than 2 m with dbh below 7 cm, five trees were selected. After cutting those trees, the length of the last ten branch whorls was measured. Five−year ring width measurements starting from the bark towards the pith were done at the stem cross−sections obtained at breast height. The number of rings was counted on remaining stumps. Height growth rate was defined as the height at the base age of 100 years (eq. 1). For the first canopy layer, the height growth rate was on average 31.8 m, while for the undergrowth it was 12.1 m. There was also large difference between diameter growth rate of the first stand canopy layer (55.7 cm) and undergrowth (18.3 cm). Both differences were significant at p=0.05. These discrepancies could result from low amount of light reaching the forest floor. The correlation between height and diameter growth rates and undergrowth tree age was negative in both cases. Long periods of shading result in smaller number of firs reaching the first canopy layer. Assuming that uneven−aged stand structure is optimal for that species, it should be characterized by a spatial variability (mosaic) of various canopy layers including even−aged patches with sparse canopy closure as well as gaps where fir regeneration will be initiated having favorable growth conditions.
    Źródło:
    Sylwan; 2015, 159, 10; 804-812
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analiza faz wzrostu wysokości buka pospolitego rosnącego w drugim piętrze drzewostanów bukowo-sosnowych
    Analysis of height growth phases for beech growing in the lower storey of beech-pine stands
    Autorzy:
    Dudzińska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008813.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany bukowo-sosnowe
    drugie pietro drzewostanu
    drzewa lesne
    buk zwyczajny
    Fagus sylvatica
    fazy wzrostu
    przyrost drzew
    przyrost wysokosci
    przyrost biezacy
    przyrost przecietny
    wiek kulminacji przyrostu
    height growth phases
    periodic annual increment
    mean annual increment
    height increment culmination
    second storey
    fagus sylvatica−pinus sylvestris l. stands
    Opis:
    The study focused primarily on the analysis of the periodic annual and mean annual increment and on the recognition of the growth phases for beech growing in the lower storey of beech−pine stands. The empirical material collected from 12 beech−pine stands located in the territory of the Miłomłyn and Stare Jabłonki Forest Districts was used for the study. The height increment of the beech trees from the second storey of beech−pine stands under study culminated earlier than the height increment of the beech trees from pure, one−storied stands. The beech trees growing in the second storey are also characterised by a shorter juvenile phase.
    Źródło:
    Sylwan; 2012, 156, 06; 420-426
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wzrost i przyrost wysokości dębu szypułkowego (Quercus robur L.) w dolnej warstwie drzewostanu sosnowego
    Growth and increment of height of pedunculate oak (Quercus robur L.) undergrowth in Scots pine stands
    Autorzy:
    Paluch, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/991145.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    dab szypulkowy
    Quercus robur
    wzrost roslin
    przyrost wysokosci
    odnowienia podokapowe
    oslona gorna drzewostanu
    drzewostany sosnowe
    height
    growth phases
    undergrowth
    pedunculate oak
    Opis:
    The study compares height growth of pedunculate oak (Quercus robur L.) undergrowth in Scots pine (Pinus sylvestris L.) stands and in open canopy conditions. Material was collected in 20 Scots pine stands with well−developed pedunculate oak undergrowth located in north−eastern Poland, representing the mixed deciduous forest type (Querco roboris−Pinetum). Fraction of oak undergrowth with slow height increment in Scots pine stands amounted 40% and was twice as high as in the open canopy conditions. On average 10 years longer than in the open canopy conditions juvenile phase characterizes the height growth of pedunculate oak undergrowth. A shift of height growth phases of oak undergrowth was recorded. However in most of the stands Scots pine shelter did not cause large delay in the age at which the culmination of current height increment of pedunculate oak is achieved.
    Źródło:
    Sylwan; 2014, 158, 08; 563-570
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Związek wysokości z wybranymi cechami korony czteroletniej brzozy brodawkowatej (Betula pendula Roth)
    The relationship between height and crown characteristics of four-year-old common birch (Betula pendula Roth)
    Autorzy:
    Klepacki, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1292448.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    drzewa lesne
    brzoza brodawkowata
    Betula pendula
    wysokosc drzew
    korony drzew
    szerokosc korony
    dlugosc korony
    przestrzen wzrostu
    korelacja cech
    tree height
    crown width
    crown length
    growth space
    common birch
    forest culture
    Opis:
    This paper presents the results of an analysis on characteristics of birch crowns (Betula pendula Roth) in relation to measures of the growth space occupied by a single tree at a young age. It also presents the relationships between the seedling height and certain crown characteristics. The study focused on four-year-old common birches growing in four different areas in the Elk Forest District in either fresh mixed coniferous or broadleaved forest. The measurements conducted on the chosen trees were used to calculate their crown characteristics such as crown diameter, length, height to the crown base, relative length and spread. They were also used to determine the growth characteristics of a single tree’s growth space, such as the crown area projected onto the ground, single tree space and the percentage use of unit area. Furthermore, fresh and dry leaf mass was determined. The birches growing in the fresh mixed coniferous forest reached an average height of 1.30 m, whereas in the fresh mixed broadleaved forest, the height of the trees was lower and amounted to 0.67 m. 95% of the trees had crown diameters of 0.57 m to 0.74 m in the fresh mixed coniferous forest, but only 0.19 m to 0.25 m in the fresh mixed broadleaved forest. The average lengths of the crowns in the fresh mixed coniferous and broadleaved forests amounted to 0.97 m and 0.37 m respectively. The author shows that there is a statistically significant correlation between the seedling height and the other examined characteristics. The best correlation was found between the height and the length of the crown (r=0.9858) for birches growing in the fresh mixed coniferous forest and between the height and single tree space (r=0.8468) for birches growing in the fresh mixed broadleaved forest.
    Źródło:
    Leśne Prace Badawcze; 2017, 78, 2
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przyrost i wzrost nadziemnej i podziemnej części podrostów jodłowych w Nadleśnictwie Piotrków Trybunalski
    The increment and growth of above- and belowground part of the fir undergrowth in the Piotrkow Trybunalski Forest District
    Autorzy:
    Skrzyszewski, J.
    Taranowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008941.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Nadlesnictwo Piotrkow Trybunalski
    hodowla lasu
    drzewa lesne
    jodla pospolita
    Abies alba
    podrost
    czesci nadziemne
    korony drzew
    strzala drzew
    czesci podziemne
    system korzeniowy
    przyrost drzew
    przyrost wysokosci
    wzrost korzeni
    abies alba
    root system
    height
    length
    growth
    increment
    poland
    Opis:
    The objective of the research was to determine the relationship between the dimensions and increment of the aboveground (easy to determine) and the belowground biomass of fir undergrowth in different shelter conditions. In the examined samples, the length of taproots (DKp) up to the age of 30 was dependent on its increment during the first three years of development. Later years saw an intensified growth of taproots. However, the differences from the first years of growth did not compensate for the differences in the first years. Reduced DKp growth was observed in the group of seedlings incrementing to a height of less than 4 cm. The height increment of fir undergrowth at about 20 years of age should not be less than 20 cm. The growth of roots and aboveground parts depends on other factors. The growth of roots was related to the growth of aboveground parts only to a small degree. Under the conditions of suppression, the extremely poor height increment of firs was compensated by the development of the aboveground biomass. With a moderate height increment (sufficient light availability) root growth was more intense. No clear relationship was found between the development of taproots and horizontal roots.
    Źródło:
    Sylwan; 2010, 154, 07; 488-498
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie bieżącego przyrostu sosen w trzech klasach wieku
    The current growth increment of pine tree stands comprising three different age classes
    Autorzy:
    Kaźmierczak, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1339817.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    dendrometria
    drzewa lesne
    klasy wieku
    klasy Krafta
    drzewostany I klasy wieku
    drzewostany II klasy wieku
    drzewostany III klasy wieku
    sosna zwyczajna
    Pinus sylvestris
    przyrost drzew
    przyrost biezacy
    przyrost wysokosci
    przyrost piersnicy
    przyrost piersnicowego pola przekroju
    przyrost miazszosci
    height increment
    dbh increment
    basal area increment
    volume increment
    growth space
    crown
    age
    biosocial position
    Opis:
    The study presents the results of an analysis of the pine tree growth increments (height increment, dbh increment, basal area increment and volume increment) for a 5-year period. The study involved Scots pine trees of Kraft's class 1, 2 and 3 (dominant stand) in stands of different age classes (II, III, V) growing in fresh mixed coniferous (BMoew) and fresh coniferous (Boew) forest habitats. The multivariate analysis of variance was performed to assess the statistical significance of age and dominance of trees within a stand on their increment. The dominance position was classified for each tree using Kraft's criteria. The following characteristics were also measured: dbh of the trunk in two directions (N-S and W-E), and crown projection area on the basis of the characteristic tree crown points, projected using of a crown projector, characteristic points in tree crowns (7 to 14 on average). The actual height was determined after trees were felled. The following measurements of the single tree growing space were selected and determined: crown projection area – pk (m2), crown diameter – dk (m), Seebach's growth space number – dk / d1. 3 , crown projection area to basal area ratio –d d k 2 1 3 / 2. , crown deflection coefficient –d h k / , single tree space ppd=pk·h (m3). We assessed the strength of the relationships between tree growth parameters and tree growth space, crown length, relative crown length and slenderness. Both the age and dominance position of trees within the stand affected the growth increments. The strongest correlation among measured traits was between the 5-year volume increment and decreasing slenderness.
    Źródło:
    Leśne Prace Badawcze; 2013, 74, 2; 93-100
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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