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Tytuł:
Dendrochronologiczna analiza przyrostów rocznych świerka pospolitego (Picea abies (L.) Karsten) poza naturalnym zasięgiem a cechy biometryczne szyszek
Dendrochronological analysis of annual increments of Norway spruce [Picea abies [L.] Karsten] outside its natural range in comparison to biometric features of the cones
Autorzy:
Koprowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1013533.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
szyszki
dendrochronologia
cechy biometryczne
Picea abies
lesnictwo
przyrosty roczne
swierk pospolity
drzewa lesne
dendrochronology
norway spruce
cones
statistical analysis
Opis:
Dendrochronological analysis and measurements of selected features of the cones allowed to describe the influence of the over−regional factors and the origin of trees on the increment pattern of Norway spruce growing in north−western Poland outside its natural range. Trees from study sites in the Świerczyna Forest District that is located farther southwards than the others characterise different course of tree growth. One of these sites stands out from the analysed group in terms of biometric features of the cones. The origin of the trees seems to decide on the spatial distribution of the increment pattern in a little way.
Źródło:
Sylwan; 2008, 152, 03; 50-57
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Świerk pospolity [Picea abies (L.) Karst.] w 30−letnim doświadczeniu proweniencyjnym serii IUFRO 1972 w Nadleśnictwie Doświadczalnym Siemianice
Norway spruce [Picea abies (L.) Karst.] provenance in a thirty−year IUFRO 1972 experiment series in the Forest Experimental Station in Siemianice
Autorzy:
Barzdajn, W.
Powiązania:
https://bibliotekanauki.pl/articles/972824.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
proweniencje
hodowla lasu
Nadlesnictwo Siemianice
Picea abies
lesnictwo
swierk pospolity
drzewa lesne
Norway spruce
Siemienice
provenances
Polska
IUFRO experiment 1972
Opis:
The paper focuses on the analysis of taxation characteristics of 20 Polish provenances of Picea abies (L.) Karst. In 1996, spruce from Istebna Bukowiec was taken as a standard provenance, which generated the highest yield while in 2001 – the provenance from Zwierzyniec Lubelski. This is indicative of an interaction between assessment results and age, as well as of the existence of spruce populations which are more productive than the spruce from Istebna Bukowiec. It is advisable to continue studies concerning identification of spruce genetic resources in Poland.
Źródło:
Sylwan; 2003, 147, 07; 24-30
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ skracania systemów korzeniowych dwuletnich sadzonek świerka pospolitego (Picea abies L. Karst.) na ich wzrost po posadzeniu
Influence of root system shortening of two-year-old seedlings of Norway spruce (Picea abies L. Karst.) on their growth after planting
Autorzy:
Buraczyk, W.
Drozdowski, S.
Szeligowski, H.
Gawron, L.
Karpiuk, M.
Powiązania:
https://bibliotekanauki.pl/articles/1008907.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
drzewa lesne
swierk pospolity
Picea abies
sadzonki dwuletnie
skracanie korzeni
wzrost roslin
norway spruce
root shortening
nursery
regeneration
Opis:
The paper presents investigation on influence of root shortening on growth of 2−years−old Norway spruce seedlings after their development in the nursery. Measurements of basic morphological features reveal that strong length reduction increases regeneration of spruce root system. Together with that, slight decrease in height and diameter increment of the main shoot can be observed. Shortening of spruce roots improves significantly the balance between above− and belowground parts of the seedlings as well.
Źródło:
Sylwan; 2011, 155, 07; 482-492
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Związek typu ugałęzienia świerka pospolitego (Picea abies (L.) Karst.) z jakością surowca drzewnego
Relationships between Norway spruce [Picea abies [L.] Karst.] branching type and timber
Autorzy:
Michalec, K.
Powiązania:
https://bibliotekanauki.pl/articles/1015618.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
typ ugalezienia
drewno swierkowe
Picea abies
lesnictwo
jakosc
wady drewna
swierk pospolity
drzewa lesne
norway spruce
branching type
timber quality
wood defects
Opis:
As there are different views concerning the relationship between branching type and timber quality, the present paper attempts to evaluate this relationship. The studies were carried out on 32 sample plots located within the boundaries of two natural ranges of Norway spruce in Poland: north−eastern and south−western. The selected trees were examined for the type of branching, height and diameter at breast height, timber quality, size classes or groups in a butt−end section, and kinds or varieties of wood defects having an effect on timber grade classification. The analyses did not show any clear relationship between branching type and timber quality of Norway spruce.
Źródło:
Sylwan; 2008, 152, 06; 33-43
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie trygonometrycznego modelu zbieżystości do określania kształtu strzał świerka
The use of a trigonometric taper model for the determination of the shape of spruce stems
Autorzy:
Socha, J.
Powiązania:
https://bibliotekanauki.pl/articles/1023459.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
modele ksztaltu
dendrometria
Picea abies
lesnictwo
trygonometryczny model zbiezystosci
ksztalt strzaly
swierk pospolity
drzewa lesne
stem shape
shape model
taper model
norway spruce
Opis:
On the basis of sectional measurements of diameters of trees from 5 sawtimber spruce stands in the Beskid Śląski and Beskid Żywiecki, a non−linear shape model for spruce stems has been developed using a trigonometric model [Bi 2000]. Subsequently, the accuracy of the proposed solution has been evaluated and compared with the accuracy of a linear model [Socha 2000]. The discussed non−linear model for describing the shape of stems is quite satisfactory, however, with regard to the accuracy of the determination of the stem morphological curve and volume this solution is inferior to the linear model.
Źródło:
Sylwan; 2004, 148, 04; 3-10
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena dokładności stałych krzywych wysokości dla drzewostanów świerkowych
Assessment of the accuracy of uniform height curves for spruce stands
Autorzy:
Socha, J.
Powiązania:
https://bibliotekanauki.pl/articles/1023142.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
stale krzywe wysokosci
dendrometria
drzewostany swierkowe
Picea abies
lesnictwo
dokladnosc
swierk pospolity
drzewa lesne
tree height
height curve
uniform height curves
norway spruce
Opis:
The paper presents assessment results of the accuracy of uniform height curves developed for mountain spruce stands of Poland [Bruchwald, Wróblewski 1994]. The empirical material was collected in 171 spruce stands in Beskid Zachodni. Moreover, the relationship between the errors of uniform height curves and dendrometric characteristics of stands was also analysed. The research results demonstrated that the accuracy of uniform height curves is close to the accuracy obtained by applying the height curve developed for a given stand.
Źródło:
Sylwan; 2004, 148, 06; 3-9
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model zbieżystości strzał dla górskich drzewostanów świerkowych średnich klas wieku
A taper model for mountain spruce stands in medium age classes
Autorzy:
Socha, J.
Kubik, I.
Powiązania:
https://bibliotekanauki.pl/articles/1022889.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zbiezystosc strzaly
dendrometria
model zbiezystosci
drzewostany swierkowe
lasy gorskie
Picea abies
lesnictwo
strzala drzew
swierk pospolity
stem shape
shape model
taper model
norway spruce
Opis:
The taper model presented in this paper was built for the mountain spruce stands in medium age classes. The model was described by multiple regression equations determining the thickness of a tree stem at different relative heights. Three variants of equations were proposed. In the simplest equation, d.b.h. and tree height were the explanatory variables while in the remaining equations height and thickness at half of the stem height were additional variables. The solution proposed in the paper allows for a precise estimation of the volume of stems and stem sections. At the same time it is free from systematic errors. The developed taper model can find practical application in determining tree shape, volume and timber assortment classes in forest inventories, standing tree quality assessment and stand pricing.
Źródło:
Sylwan; 2005, 149, 01; 42-52
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamika zarastania przez las górnoreglowych polan popasterskich w Tatrach Polskich
Autorzy:
Ciurzycki, W.
Powiązania:
https://bibliotekanauki.pl/articles/1022291.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
sukcesja roslin
Tatry
Picea abies
regiel gorny
lesnictwo
polany popasterskie
zarastanie
swierk pospolity
upper montane belt glades
pasturage abandonment
succession dynamics
norway spruce
tatra mountains
Opis:
The paper presents relation between spruce covering and their average heigt, and part of spruce trees in various categories of height in restocking on the upper montane belt glades excluded from pasturage in Polish Tatra Mountains. There was described spruce emerging dynamics in last time and possibilities of future forest succession on the glades.
Źródło:
Sylwan; 2005, 149, 02; 35-41
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ warunków siedliskowych na strukturę i zasobność drzewostanów świerkowo-sosnowych w Puszczy Augustowskiej
Impact of site conditions on the structure and volume of spruce-pine stands in the Augustowska Primeval Forest
Autorzy:
Andrzejczyk, T.
Drozdowski, S.
Powiązania:
https://bibliotekanauki.pl/articles/1016334.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
warunki siedliskowe
hodowla lasu
lesnictwo
struktura drzewostanu
drzewostany swierkowo-sosnowe
zasobnosc drzewostanu
Puszcza Augustowska
norway spruce
picea abies
spruce−pine stands
sub−boreal stands
age structure
multi−storeyed structure
site
Opis:
The role of spruce in shaping the structure and volume of pine stands in the Augustowska Primeval Forest (north−eastern Poland) increases with the increase of site fertility. On poor coniferous forest sites, spruce occurs mainly in an understorey and sporadically as an admixture species, whereas on medium−fertile and fertile sites it builds the second storey and occurs in the upper storey accounting for about 30−40% of stand volume. In mature pine stands of the Augustowska Primeval Forest, spruce comes from natural regeneration. Taking into consideration the course of the regeneration process, four types of spruce age structure are distinguished.
Źródło:
Sylwan; 2007, 151, 01; 30-40
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Drzewostanowa metoda określania uszkodzenia świerka
Method of assessment the damage to Norway spruce stands
Autorzy:
Dmyterko, E.
Bruchwald, A.
Powiązania:
https://bibliotekanauki.pl/articles/1016295.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
defoliacja
uszkodzenia drzew
wskaznik uszkodzenia drzew
metoda drzewostanowa
Picea abies
lesnictwo
kryteria oceny
metody oceny
swierk pospolity
drzewa lesne
methods of assessment the damage to stands
norway spruce
Opis:
Paper presents two variants of the method of assessment the damage to the Norway spruce stands that were determined on the basis of the crown development. The first one is based on the tree's defoliation, the other – on the tree's damage index W that includes defoliation (feature A), condition of the tree−top (feature B) and tree's vitality (feature C). Mean defoliation or index W is used to determine one of the four classes of the stand damage. The accuracy of both variants was worked out and minimum number of sample trees required within assumed standard errors of assessed features. Alarming picture of Norway spruce stands in Polish Carpathians and Sudety Mountains appeared for the damaged stands prevail while there is no undamaged stands.
Źródło:
Sylwan; 2007, 151, 06; 24-33
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność cech szyszek i nasion świerka pospolitego (Picea abies (L.) Karst) w zależności od ich lokalizacji w koronie drzewa
Variability of the selected traits of Picea abies (L.) Karst. cones and seeds depending on their location in the crown
Autorzy:
Jastrzębowski, S.
Kantorowicz, W.
Ukalski, K.
Klisz, M.
Powiązania:
https://bibliotekanauki.pl/articles/980287.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy gorskie
swierk pospolity
Picea abies
szyszki swierku
cechy jakosciowe
nasiona
jakosc nasion
lokalizacja w koronie drzewa
norway spruce
seeds quality
crown zone
cone distribution
mountain forests
Opis:
The objective of the study was to determine whether differences exist between the selected characteristics of Norway spruce cones and seeds depending on their location in the crown. The study was performed in two spruce tree stands growing under mountainous conditions (the Beskidy Mountains, southern Poland). In winter 2015, the cones were collected from 60 standing trees located in the two selected seed stands – Ujsoły and Rycerka. From each tree, the cones were collected from three crown zones: top, central and bottom differing in terms of light conditions. Two characteristics of the cones and six characteristics of the seeds were analysed. To determine quantitative and qualitative traits of seeds standard methods for seed testing were applied. Significant differences between the populations were determined for cone weight and fraction of full seeds, weight of 1000 seeds and germination capacity. The crown zones differed significantly in terms of fraction of cones in the parts of the crown and mass of one cone as well as weight of 1000 seeds, germination energy and germination capacity. Moreover, a significant intra−population variation was observed for a majority of the analysed characteristics (fraction of full seeds, weight of one cone, weight of 1000 seeds, germination energy, and germination capacity). However, no statistically significant interaction between population and crown zone was observed. A significantly lower contribution of cones in the bottom zone of the crown may affect the economic viability of the commercial harvest. On the other hand some of the important seeds traits (e.g. weight of 1000 seeds, germination energy and germination capacity) were significantly better in the bottom and central part of the crown than in the top zone. There are no justified circumstances (both qualitative and quantitative) to perform the cone harvest only from the top zone of the crown.
Źródło:
Sylwan; 2019, 163, 01; 3-12
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Poziome rozmieszczenie drzew w osiemdziesięcioletnich gospodarczych drzewostanach świerkowych w Nadleśnictwie Sławno
Horizontal distribution of trees in managed, 80-years old Norway spruce stands in Slawno Forest District
Autorzy:
Szmyt, J.
Korzeniewicz, R.
Powiązania:
https://bibliotekanauki.pl/articles/1015820.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
funkcja Ripleya
biogrupy
drzewostany swierkowe
Picea abies
lesnictwo
struktura drzewostanu
rozmieszczenie przestrzenne
Nadlesnictwo Slawno
swierk pospolity
drzewa lesne
lasy gospodarcze
norway spruce
spatial distribution
ripley's function
biogrups
stand structure
Opis:
The objective of this research was to describe the horizontal distribution of trees in the managed Norway spruce stands located in the Sławno Forest District. The knowledge of that stand feature may be useful for the forest management in natural as well as in artificial stands. This paper presents the analysis of the spatial pattern of trees belonging to the different diameter classes in two separate stands. Majority of the living trees in both stands characterised with random spatial distribution. Trees with small (≤20 cm) dbh were localised in groups the most often.
Źródło:
Sylwan; 2007, 151, 09; 3-11
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność izoenzymatyczna niektórych polskich populacji świerka (Picea abies (L.) Karst.) z doświadczenia proweniencyjnego IUFRO - 1972
Isozymatic variability in some of the Polish populations of Norway spruce (Picea abies (L.) Karst.) in the IUFRO - 1972 provenance trial
Autorzy:
Prus-Głowacki, W.
Modrzyński, J.
Powiązania:
https://bibliotekanauki.pl/articles/1026385.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
hodowla lasu
izoenzymy
Picea abies
lesnictwo
IUFRO
struktura genetyczna
doswiadczenia proweniencyjne
zmiennosc
swierk pospolity
drzewa lesne
norway spruce
polish populations
isozymes
genetic differentiation
provenance trial iufro−1972
Opis:
Genetic differentiation of nine Polish Norway spruce populations, expressed by their isozymatic polymorphism, is presented. The results suggest a presence of two gene pools, one in north−eastern, another in southern Poland.
Źródło:
Sylwan; 2003, 147, 03; 3-10
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kryteria określania uszkodzenia świerka
Criteria for assessment of the damage to Norway spruce
Autorzy:
Dmyterko, E.
Bruchwald, A.
Powiązania:
https://bibliotekanauki.pl/articles/1016245.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
defoliacja
uszkodzenia drzew
stan wierzcholka drzewa
zywotnosc
Picea abies
lesnictwo
kryteria oceny
swierk pospolity
drzewa lesne
criteria for assessment of the damage to trees
defoliation
vitality
top condition
norway spruce
Opis:
The paper presents the criteria for assessment of the damage to Norway spruce determined on the basis of its crown development. Three features were included: condition of the assimilation apparatus (feature A), condition of the tree−top (feature B) and tree vitality (feature C). Feature A is based on the defoliation. Feature B assesses the length of the last height increments and their branching models. Feature C includes the loss of branches in the middle part of the crown, the presence of branches of 2nd and higher orders as well as condition of proventive sprouts (developed from dormant buds). Determined criteria may be applied in the methods of assessment of the damage to stands and larger forest objects e.g. management region, forest region, nature−forest regions.
Źródło:
Sylwan; 2007, 151, 06; 12-23
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potencjał wzrostowy korzeni sadzonek sosny zwyczajnej, świerka pospolitego i modrzewia europejskiego
Autorzy:
Szeligowski, H.
Powiązania:
https://bibliotekanauki.pl/articles/1022055.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
hodowla lasu
potencjal wzrostu
sadzonki
Larix decidua
korzenie
Picea abies
sosna zwyczajna
lesnictwo
modrzew europejski
swierk pospolity
Pinus sylvestris
drzewa lesne
scott pine
norway spruce
european larch
root growth potential
storage
Opis:
The paper is an attempt to determine the testing standard of root growth potential of European tree species: pine, spruce and larch. The experiment was conducted in a greenhouse during the dormancy season (February−March). The experimental variants consisted of two methods of seedling storage: the cold store and traditional storage pit. The obtained results revealed that the tested species had poor root growth capacity when compared to Burdett scale and their response range is between 0 and 3. It was noted that the storage method stimulates root production. As a rule the seedlings stored in the pit had higher root growth response than those stored in the cold store.
Źródło:
Sylwan; 2005, 149, 10; 28-34
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 26

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