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    Tytuł:
    Analysis of covariance of height of pine stands
    Analiza kowariancji wysokości drzew dla drzewostanu sosnowego
    Autorzy:
    Kazmierczak, K.
    Graczyk, M.
    Zawieja, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/9777.pdf
    Data publikacji:
    2008
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Katedra Zastosowań Matematyki i Informatyki
    Tematy:
    covariance analysis
    tree
    height
    pine stand
    Scotch pine
    Pinus sylvestris
    Źródło:
    Colloquium Biometricum; 2008, 38
    1896-7701
    Pojawia się w:
    Colloquium Biometricum
    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:
    Określanie wysokości drzewostanów Nadleśnictwa Chojna w oparciu o lotniczy skaning laserowy (ALS)
    Airborne laser scanning (ALS)-based determination of the chojna forest disrtict tree stand heights
    Autorzy:
    Wężyk, P.
    Solecki, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/130748.pdf
    Data publikacji:
    2008
    Wydawca:
    Stowarzyszenie Geodetów Polskich
    Tematy:
    lotniczy skaning laserowy
    ALS
    wysokość drzew
    wysokość drzewostanu
    powierzchnia próbna
    airborne laser scanning (ALS)
    tree height
    stand height
    inventory plot
    Opis:
    Praca omawia nowe możliwości określania wysokości drzew i drzewostanów w oparciu o techniki lotniczego skaningu laserowego (LiDAR) porównując uzyskane wyniki do tradycyjnych metod inwentaryzacji lasu. Obiekt badawczy stanowił Obręb Piasek (Nadleśnictwo Chojna) o powierzchni 6.380,26 ha. Zestaw danych referencyjnych stanowiło 276 powierzchni próbnych (zwane TEREN) założone w 2006 roku oraz zaktualizowana baza danych opisowych (SILP) z roku 2005. Do analiz wysokości drzew na powierzchniach kołowych oraz całych wydzieleń wykonywanych w oparciu o ALS, posłużył zNMPT (nDSM; 90 percentyl). Badania wykazały, iż na podstawie ALS uzyskano wyższe wartości wysokości drzewostanów w porównaniu do wyników urządzania lasu (SILP 2005). Największą zgodność wyników z danymi referencyjnymi zaobserwowano w przypadku całych drzewostanów liściastych, dla których średnie różnice wynosiły: +1.07 m (LIDAR - SILP) ÷ -1.72 m (TEREN – LIDAR). Inaczej było w przypadku drzewostanów iglastych +3.58 m (LIDAR - SILP)÷ -3.01 m (TEREN – LIDAR). W przypadku niektórych powierzchni kołowych stwierdzono tendencję zaniżania wysokości określanej na podstawie ALS (drzewostany iglaste: -0.02m (LIDAR - SILP) ÷ +0.76 m (TEREN – LIDAR); d-stany liściaste -0.41 m (LIDAR - SILP), co potwierdzają w zasadzie wyniki innych prac naukowych. Otrzymane wyniki pozwalają wnioskować, iż technologia ALS wspomagana ortofotomapami doskonale nadaje się do obiektywnego i precyzyjnego określania wysokości całych drzewostanów i rewizji wektora LMN.
    The paper describes the most recent development in using the airborne laser scanning technology (ALS; LiDAR) to determine heights of individual trees and tree stands and compares the results to data derived from the traditional forest inventory. The Piasek Forest of 6,380.26 ha (the Chojna forest district managed by the Regional State Forest Administration in Szczeci) was chosen as a test site. The first reference data set for the forest stand height was obtained from the SILP data base (LAS tables) updated a year (2005) before the ALS was performed. The other reference data set (called TERRAIN) was assembled during the ground-truthing campaign in 2006, which resulted in establishing 276 circular inventory plots (148 plots in 67 deciduous stands and 128 plots in 66 coniferous forest stands). The nDSM (90th percentile) was selected as the input data for the height analysis. The results showed that the ALS-based tree heights were higher than those recorded in the official SILP database for the Chojna district. In the deciduous forest stand, differences between the LiDAR and SILP data were not particularly large and amounted to as little as about 1.07 m (R² = 0.92). Differences between the LIDAR and TERRAIN data sets were about 1.72 m (R²=0.77), higher values being obtained using ALS. In the coniferous stands, differences between the LIDAR and SILP were considerably higher, up to +3.58 m (R² = 0.93), whereas the other TERRAIN set, when compared to the LIDAR data, showed that the traditional forest inventory underestimated the Scots pine height by about -3.01 m. A detailed analyses revealed that, in some inventory plots, the LIDAR data underestimated the tree stand height (LIDAR vs SILP; coniferous: -0.02m; deciduous: -0.41 m). Such underestimation may be explained by the lack of signals coming back from warming tops of the trees. The results obtained allow to conclude that the LIDAR technology supported by the digital orthophotomaps can objectively and precisely supply height data not only for single trees, but it makes it possible to measure the whole stand (whole trees). Therefore, the existing inventory methods need to be changed to make forest planning and monitoring more precise, faster, comparable, cheaper, and not dependable on subjective measurements.
    Źródło:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2008, 18b; 663-672
    2083-2214
    2391-9477
    Pojawia się w:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Półnaturalna przebudowa lipą drzewostanów sosnowych w Nadleśnictwie Doświadczalnym Siemianice
    Semi-natural transformation of pine stands with lime trees in the Siemianice Experimental Forest District
    Autorzy:
    Jaszczak, R.
    Magnuski, K.
    Stefaniak, I.
    Winkler, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009712.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    Tilia cordata
    wzrost roslin
    lipa drobnolistna
    przebudowa polnaturalna
    pozycja biosocjalna drzew
    przebudowa drzewostanow
    lesnictwo
    Nadlesnictwo Doswiadczalne Siemianice
    przyrost drzew
    drzewa lesne
    pine stand
    semi−natural transformation
    lime
    breast height diameter structure
    height structure
    biosocial
    structure
    Opis:
    The paper presents results of the inventories carried out in years 2000 and 2001 in a two−storeyed stands whose upper storey was made up of pine and the lower one – of lime. Lime breast height diameter and height as well as biosocial structures were discussed.
    Źródło:
    Sylwan; 2009, 153, 07; 442-450
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Porównanie zmienności cech taksacyjnych drzewostanów sosnowych pomiędzy obszarami różniącymi się poziomem zanieczyszczeń przemysłowych na Niżu Polskim
    Comparision of the variability of pine stand appraisal properties in areas with different levels of industrial pollution in the Polish Lowlands
    Autorzy:
    Węgiel, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1015988.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    zanieczyszczenia przemyslowe
    cechy taksacyjne
    klasy wieku
    wysokosc przecietna
    przyrost miazszosci
    lesnictwo
    Niz Polski
    zanieczyszczenia powietrza
    piersnice drzew
    zasobnosc drzewostanu
    zmiennosc
    pinus sylvestris
    coniferous forests
    industrial pollution
    tree height
    dbh
    stand volume growth
    standing
    volume
    polish lowlands
    Opis:
    The paper contains the results of the analyses of four properties (average tree height, average dbh, standing volume, average stand volume growth) of pine stands growing on poor sites in the territory of the Polish Lowlands. The comparison of four relative values of the analysed properties among four 20−year age classes was performed. The obtained results were referred to the level of industrial pollution.
    Źródło:
    Sylwan; 2007, 151, 04; 26-35
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Relation between the height of Larix kaempferi and some climatic characteristics in Poland
    Autorzy:
    Filipiak, M
    Napierala-Filipiak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/41673.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Polska
    climate
    temperature precipitation
    acclimation
    Japanese larch
    Larix kaempferi
    exotic species
    woodland
    climatic zone
    height
    larch stand
    Opis:
    Japanese larch (Larix kaempferi Sarg.) is one of the most frequent exotic species in Polish woodlands. The basic object of research comprised 60 stands of the studied species, located mainly in the northern and western parts of Poland. The growth results for the studied species, evaluated on the basis of the average height (hg55), were compared with data describing the local climate and the stand location within the botanical and climatic zoning. The results confirm the opinion that the Japanese larch prefers a climate of maritime character and generally shows high degree of flexibility regarding its climatic requirements (very large differences between the growth conditions in the studied area and the country of origin). The dependence between the growth results and precipitation is however lower than expected. The most interesting results include the relatively clear connection between the height of the larch stands and the Degórski’s (1984) ‘floristic’ ‘K’ (continentality) index.
    Źródło:
    Dendrobiology; 2008, 60; 11-17
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stabilność adaptacji potomstwa buka zwyczajnego Fagus sylvatica L. po pięciu latach wzrostu
    Adaptation stability of European beech Fagus sylvatica L. after five years of growth
    Autorzy:
    Jaźwiński, J.
    Banach, J.
    Skrzyszewska, K.
    Strejczek-Jaźwińska, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1291347.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    hodowla lasu
    drzewostany bukowe
    wylaczone drzewostany nasienne
    buk zwyczajny
    Fagus sylvatica
    testowanie potomstwa
    przezywalnosc
    wysokosc
    odziedziczalnosc
    stabilnosc genotypu
    progeny testing
    selected seed stand
    survival
    height
    heritability
    genotype stability
    wyłączony drzewostan nasienny
    przeżywalność
    wysokość
    odziedziczalność
    stabilność genotypu
    Opis:
    This study was focused on the evaluation of beech adaptation on test plots in the Góra Śląska and Świebodzin Forest Districts. For this purpose, we examined offspring from seed stands of beech growing in the Regional Directorates of State Forests in Szczecin, Szczecinek, Piła, Zielona Góra and Poznań, which were brought to both test plots. The aim was to determine the adaptive response of the offspring from these stands after five years of growth with respect to the changed environmental conditions compared to the site of origin. Our analysis revealed a relatively low survival rate which was 60.8% and 72.2% in Góra Śląska and Świebodzin respectively. Interestingly, beeches grown on the plot in Góra Śląska were about 40% higher than those grown in Świebodzin (77.6 cm). The trees from both plots were significantly different from each other in terms of the analyzed features and a significant interaction was observed between test plot and site of origin. However, the variability in the adaptive response of the seedlings was large. Using a regression coefficient and the average height value, we determined the seedlings stability, which indicated high quality in offspring from the beech stand in the Łopuchówko Forest District (Buczyna forest range, sub-compartment 95n) and a high degree of adaptation to growth in adverse environmental conditions. Our results also indicate a low survival rate and reduced height of beech offspring from commercial seed stands (local standard).
    Źródło:
    Leśne Prace Badawcze; 2019, 80, 2
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura drzewostanu w rezerwacie cisowym "Zdroje" w Szczecinie
    Stand structure in the 'Zdroje' common yew nature reserve in Szczecin
    Autorzy:
    Friedrich, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1013127.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Taxus baccata
    struktura populacji
    populacje roslin
    rezerwaty przyrody
    wysokosc drzew
    struktura grubosci
    grubosc
    struktura wysokosci
    lesnictwo
    cis
    struktura drzewostanu
    rezerwat Zdroje
    stand structure
    diameter distribution
    height distribution
    common yew
    nature protection
    Opis:
    The paper presents the stand structure in the "Zdroje" common yew nature reserve in Szczecin. In 2006 the stand was built by 1848 trees that belonged to 14 species. Scots pine was the most numerous species (1067 trees). There were also 533 common yews. The other species were represented by 1−76 specimens. The diameter structure of six the most important species as well as the height structure of a common yew were analysed. Changes in the height structure of a common yew over 28 years were presented as well. No natural regeneration of common yew was observed.
    Źródło:
    Sylwan; 2008, 152, 08; 25-34
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of surface fire on radial and height growth of Pinus sylvestris L. in forest-steppe in Ukraine
    Autorzy:
    Koval, Iryna
    Sydorenko, Serhiy
    Powiązania:
    https://bibliotekanauki.pl/articles/2044108.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    meteorological characteristics
    height growth
    radial growth
    post-pyrogenic development of pine stand
    Pinus sylvestris L.
    percent of the late wood
    Opis:
    The article presents the results of the research on the peculiarity of response of Pinus sylvestris L. growth in height and diameter in young pine forest stand of the Left-Bank forest-steppe of Ukraine under the influence of surface fire that happened in May 2011. Forestry taxation, comparative ecology, standard dendrochronological methods were used. Response of trees was different for the height growth and the radial increment in the year of fire (2011). The radial growth got depressed in the year of fire; at the same time, the height of trees showed positive trend of growth against the background of favourable weather conditions. The growth in height was more ductile and completed its recovery to a particular level in 2014, unlike the radial growth, which recovered only in 2016. The relationships between radial growth on one side and stand sanitary state and height of bark char on the other were approximated by quadratic and cubic regression equations. Dynamics of pine growth depends on climatic factors also. Percentage of the late wood should be used to assess the condition of stands after fire. Research of post-pyrogenic development of forest ecosystems will allow more effective planning of forest management measures, and also allow the adjustment of the monitoring duration for pine forest stands damaged by fires.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2019, 61, 2; 123-134
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Urządzanie lasu w Polsce po drugiej wojnie światowej w świetle źródłowych publikacji Sylwana. Część III. Regulacja i planowanie w gospodarstwie leśnym
    Forest management in Poland after the Second World War in the light of source publications from 'Sylwan' journal. Part III. Regulation and planning in forest enterprise
    Autorzy:
    Magnuski, K.
    Jaszczak, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1013144.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    okres powojenny
    historia
    Polska
    planowanie
    uzytkowanie lasu
    lesnictwo
    regulacja uzytkowania rebnego
    uzytkowanie rebne
    urzadzanie lasu
    stand structure
    diameter distribution
    height distribution
    common yew
    nature protection
    Opis:
    The paper presents the stand structure in the "Zdroje" common yew nature reserve in Szczecin. In 2006 the stand was built by 1848 trees that belonged to 14 species. Scots pine was the most numerous species (1067 trees). There were also 533 common yews. The other species were represented by 1−76 specimens. The diameter structure of six the most important species as well as the height structure of a common yew were analysed. Changes in the height structure of a common yew over 28 years were presented as well. No natural regeneration of common yew was observed.
    Źródło:
    Sylwan; 2008, 152, 08; 3-16
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wound healing rate in oriental beech trees following logging damage
    Autorzy:
    Tavancar, F.
    Picchio, R.
    Lo Monaco, A.
    Nikooy, M.
    Venanzi, R.
    Bonyad, A.E.
    Powiązania:
    https://bibliotekanauki.pl/articles/962357.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
    Tematy:
    fagus orientalis
    uneven-aged stand
    single-tree selection
    diameter
    growth
    height growth
    tree biosocial class
    Opis:
    Beech is the most important commercial species in the Caspian forests of Iran. Selective cutting and harvesting methods may adversely impact the quality of the residual trees, as the injuries make the trees prone to future disease, insect infestations or timber defects. Although attempts to better understand how wounds affect the residual trees have been made in many different contexts, there are still few investigations on uneven-aged forests. In this study the key objectives were to determine and model the healing rate for different wound parameters (width, length, and area of wound); to analyse the relationship between wound healing rate (WHR), tree diameter growth and tree height growth; to analyse the WHR in relation to wound position on the stem; and to analyse the relationship between WHR, width and area of wound in DBH classes and social classes, with the aim of enabling the prognosis of logging wounds. Wounded beech trees were examined immediately after selective logging and after a 5-year period. The WHR was 31.2 ±7.7 cm2 year-1. The wound width healing rate (18.4 ±3.4 mm·year-1) was significantly higher than the wound length healing rate (4.5 ±1.6 mm·year-1). Only 12% of wounds were completely closed after a 5-year period, and 15 years are necessary for the complete closure of 80% of total wounds. The ratio of wound area to stem area at wound height (RWS) showed a more pronounced effect on diameter than on height. Regression analysis showed that WHR was correlated negatively with wound area and width and positively with tree diameter growth, but no significant relationship was found between height growth and WHR parameters. The WHR was significantly higher at an upper position than at a lower one, and statistical tests showed that the tree vertical layering classes had a significant effect on WHR. Finally, it was shown that WHRs in upper-storey trees are significantly higher than in the middle and lower storeys.
    Źródło:
    Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2019, 62, 203
    1644-3985
    Pojawia się w:
    Drewno. Prace Naukowe. Doniesienia. Komunikaty
    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
    Tytuł:
    Wpływ zagęszczenia na wzrost i jakość hodowlaną sosny w odnowieniach naturalnych
    Effect of density on growth and silvicultural value of Scots pine in natural regeneration
    Autorzy:
    Tarasiuk, S.
    Kopeć, K.
    Drozdowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/973324.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    hodowla lasu
    odnowienia naturalne
    naloty
    sosna zwyczajna
    Pinus sylvestris
    leśnictwo
    młodniki
    wzrost roślin
    zagęszczenie drzew
    przyrost wysokości
    jakość hodowlana
    scots pine
    natural regeneration
    stand tending
    tree height
    silvicultural quality
    biotic and abiotic damage
    Opis:
    The paper was aimed at determination of the effect of different tree density in the naturally regenerated monotypic and even aged young Scots pine stands growing in the fresh coniferous or mixed fresh coniferous forest sites on their further development. Research was carried out in Nowa Dęba Forest District (south−eastern Poland). A total of 12 research plots (160×40 m) were established in the selected stands. Plots were divided into 4 equal square pieces (40×40 m), where different methods of tending were applied (variant A – control, variant B – thinned, leaving 16 thousand trees/ha, variant C – thinned, leaving 10 thousand trees/ha, variant D – thinned, leaving 6 thousand trees/ha). The thinning was carried out in April 2007. In subsequent years (2007−2010), selected elements of stand structure like: height, height increment, density and damage resulting from abiotic and biotic factors were determined. Tree density significantly influenced both height increment and qualitative (tree shape) characteristics of naturally regenerated young pine trees. In the course of early thinnings, the number of trees needs to be reduced approximately down to the 10−16 th. stems/ha in the first stage of growth (seedlings), and further down to about 6 th./ha in the coppice stage. Such density enhances the chance of good growth and silvicultural quality of the stand. Noteworthy, even the heavy thinning does not significantly impact the actual proportion of both biotic (e.g. ungulate browsing) and abiotic (e.g. heavy snow) damage in the young naturally regenerated Scots pine forest stands.
    Źródło:
    Sylwan; 2015, 159, 12; 989-996
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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