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Wyszukujesz frazę "Drozdowski, W." wg kryterium: Autor


Tytuł:
Wysokość dwunastoletnich odnowień dębu szypułkowego na różnej wielkości gniazdach o wydłużonym kształcie w kierunku wschód-zachód
Height of the 12-year-old regeneration of pedunculate oak in the cut patches of different size with an elliptical shape in the east-west direction
Autorzy:
Drozdowski, S.
Andrzejczyk, T.
Buraczyk, W.
Turkot, S.
Powiązania:
https://bibliotekanauki.pl/articles/991740.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
rebnie gniazdowe
odnowienia lasu
odnowienia na gniazdach
gradient wschod-zachod
wydluzanie osi gniazda
drzewa lesne
dab szypulkowy
wzrost roslin
wysokosc drzew
patch cutting
pedunculate oak
gap size
spatial height variability
Opis:
The study presents spatial variation in the height of a 12−year−old oak regeneration in the north−south and east−west gradients in the cut patches with a similar width (28 m) but differing in length (33−70 m), with the longer side facing east−west direction. A comparison of the cut patches with an area of 7, 11 and 16 ares showed that oaks in large patches were on average 25% higher than in small patches and the diversity of trees in the WE and NS gradients depended on the size of the patch. In each case, the lowest trees occurred in the zone of strong root competition of shelterwood, whose influence decreased with the enlargement of the cut patches. The results of the study show that the establishment of large (15−20 ares) elliptical or rectangular patches whose area can be expanded by lengthening the axis in the east−west direction is the recommended method of pedunculate oak renewal in forest practice.
Źródło:
Sylwan; 2013, 157, 06; 434-441
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza wybranych cech jodły pospolitej (Abies alba Mill.) na powierzchni proweniencyjnej w Rogowie
Characteristics of silver fir (Abies alba Mill.) in a provenance trial in Rogow
Autorzy:
Szeligowski, H.
Bolibok, L.
Buraczyk, W.
Drozdowski, S.
Powiązania:
https://bibliotekanauki.pl/articles/46281.pdf
Data publikacji:
2011
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
hodowla lasu
drzewa lesne
jodla pospolita
Abies alba
proweniencje
przezywalnosc
wzrost roslin
wysokosc drzew
piersnice drzew
zywotnosc drzew
wartosc hodowlana
Źródło:
Leśne Prace Badawcze; 2011, 72, 3
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wartość hodowlana polskich populacji sosny zwyczajnej na powierzchni doświadczalnej w Rogowie
Silvicultural value of Scots pine provenances from Poland on the experimental plot in Rogow
Autorzy:
Szeligowski, H.
Buraczyk, W.
Drozdowski, S.
Gawron, L.
Powiązania:
https://bibliotekanauki.pl/articles/973327.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
hodowla lasu
sosna zwyczajna
Pinus sylvestris
proweniencje
LZD Rogow
leśnictwo
wartość hodowlana
doświadczenia prowieniencyjne
scots pine
provenance variation
silvicultural value
yield
Opis:
The paper analyses the variability of selected adaptive, growth and morphological parameters of 16 Scots pine provenances from Poland. Their silvicultural value and usefulness under the growth conditions in Central Poland were assessed. The empirical part was carried out on the experimental plot established in spring 1966 in Lipce Reymontowskie Forest Range, Rogów Forest Experimental Station. In subsequent surveys, the following characteristics were determined for each tree: diameter at the breast height, height, height of crown base and diameter of branches. All trees were also classified into 4 quality classes related to the stem straightness. The following analyses were performed: survival rate, course of height growth and diameter increment over age, variation of volume at single trees and whole stands level, diameter of branches, stem straightness, selected genetics and silvicultural properties. The assessment of silvicultural values pointed out that the best provenances include Dłużek, Karsko, Bolewice and Rychtal. Local provenances from Rogów and Spała are classified as the weak ones. Therefore in local Scots pine stands there is a need to improve quality, stability and yield. Obtained results deepen an existing knowledge on variability of Scots pine stands and demonstrate possibilities for verification of seed regionalization principles in Poland.
Źródło:
Sylwan; 2015, 159, 12; 997-1007
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ terminu sadzenia i sposobu zabezpieczenia przed zwierzyną płową na wzrost upraw dębowych na gruntach porolnych
Effect of planting time and method of protection from deer on the growth of oak plantations on the former farmland
Autorzy:
Drozdowski, S.
Bolibok, L.
Buraczyk, W.
Wiśniowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/973733.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
grunty porolne
zalesianie
Quercus robur
terminy sadzenia
leśnictwo
drzewa leśne
uprawy dębowe
ochrona przed zwierzyną
dąb szypułkowy
wzrost roślin
former farmland
density
height
wood quality
Opis:
Presented studies were conducted in the territory of the Strzyżów Forest District, in English oak plantations established under the Programme for the Development of Rural Areas, 2004−2006. The aim of this study was to compare the density, height, and quality of oaks planted in autumn or spring and protected from deer damage with wire mesh fencing or chemical repellents. Obtained results allow to suggest that wire mesh fencing is a better method of protecting plantations from animal damage and has a significant impact on the density, height and quality of oaks. Positive effect of autumn planting on oak performance was noted only after the elimination of deer impact.
Źródło:
Sylwan; 2011, 155, 09; 610-621
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ wilgotności i gatunku gleby na wzrost mikoryzowanych sadzonek sosny zwyczajnej (Pinus sylvestris L.)
Effect of soil moisture and soil type on the growth of mycorrhizal seedlings of Scots pine (Pinus sylvestris L.)
Autorzy:
Buraczyk, W.
Szeligowski, H.
Drozdowski, S.
Aleksandrowicz-Trzcinska, M.
Powiązania:
https://bibliotekanauki.pl/articles/46371.pdf
Data publikacji:
2012
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
szkolkarstwo lesne
mikoryzowanie sadzonek
grzyby mikoryzowe
Hebeloma crustuliniforme
sosna zwyczajna
Pinus sylvestris
sadzonki mikoryzowane
wzrost roslin
doswiadczenia wazonowe
podloza uprawowe
piasek
pyly
wilgotnosc podloza
zyznosc gleb
Źródło:
Leśne Prace Badawcze; 2012, 73, 1
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Planowanie hodowlane z wykorzystaniem metody BDq w drzewostanach świerkowych na siedliskach bagiennych
Silvicultural planning in spruce mire forests by the means of the BDq method
Autorzy:
Drozdowski, S.
Andrzejczyk, T.
Bielak, K.
Buraczyk, W.
Gawron, L.
Powiązania:
https://bibliotekanauki.pl/articles/990869.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
siedliska lesne
siedliska bagienne
drzewostany swierkowe
swierk pospolity
Picea abies
struktura drzewostanu
planowanie hodowlane
metoda BDq
close−to−nature silviculture
equilibrium model
norway spruce mire forest
silvicultural planning
Opis:
This paper addresses problems associated with the silvicultural planning in the Norway spruce mire forests (Sphagno girgensohnii−Piceetum Polak. 1962) that are characterized by an uneven−aged structure and a high degree of irregularity at small scale. Based on detailed inventory using 30 permanent circular sample plots in two control units located in the Augustów Forest (NE Poland), the BDq method was employed for determining future silvicultural activities of the current forest management cycle. The equilibrium models are based on diameter distributions and have the following parameters, depending on site conditions: B=28 m²/ha; q−factor=1.32 and D=51 cm in the case of poorer forest site type (S.−P. typicum) and 55 cm more fertile one (S.−P. thelypteridetosum).
Źródło:
Sylwan; 2014, 158, 10; 733-742
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:
Kształtowanie zróżnicowanej struktury drzewostanów w warunkach nizinnych
Promoting diverse forest stand structure under lowland conditions
Autorzy:
Brzeziecki, B.
Drozdowski, S.
Bielak, K.
Buraczyk, W.
Gawron, L.
Powiązania:
https://bibliotekanauki.pl/articles/994357.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Puszcza Bialowieska
drzewostany
struktura drzewostanu
struktura warstwowa
struktura gatunkowa
ksztaltowanie struktury
postepowanie hodowlane
struktura grubosci
rozklad piersnic
metoda BDq
białowieża forest
close−to−nature silviculture
stand structure
silvicultural planning
stocking control
Opis:
The paper presents preliminary results and experiences concerning promoting diverse structures in forest stands dominated by light demanding tree species, i.e. those that prevail under conditions of Polish lowlands. Data was collected in the ‘Control Unit Browsk 28C', established in 2002 in the managed part of the Białowieża Forest (eastern Poland) and surveyed again in 2011.
Źródło:
Sylwan; 2013, 157, 08; 597-606
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność sosny zwyczajnej (Pinus sylvestris L.) w doświadczeniu serii IUFRO 1982 w Nadleśnictwie Rogów
Variability of Scots pine (Pinus sylvestris L.) provenances in the IUFRO 1982 series experiment in Rogow Forest District
Autorzy:
Szeligowski, H.
Buraczyk, W.
Drozdowski, S.
Studnicki, M.
Bolibok, L.
Powiązania:
https://bibliotekanauki.pl/articles/972943.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
hodowla lasu
sosna zwyczajna
Pinus sylvestris
proweniencje
LZD Rogow
wzrost roślin
żywotność drzew
leśnictwo
wartość hodowlana
powierzchnie doświadczalne
scots pine
provenance
growth
health status
silvicultural quality
Opis:
This paper describes the variability of Scots pine (Pinus sylvestris L.) provenances in the IUFRO experiment located in Rogów (central Poland). The silvicultural quality and growth of 17 European provenances at the age of 28 years were examined, including height, diameter at breast height, standing volume, straightness of stem and health status. Populations from Poland (Spała, Miło−młyn, Rychtal), Germany (Betzhorn, Lampertheim), France (Haguenau) and Hungary (Pornóapáti) characterized by the best growth parameters. In contrast, pines from Northern (Russia, Sweden) and Southern (Turkey, Montenegro and Bosnia and Herzegovina) Europe were smaller and thinner and, as a result, with lower standing volume. The smallest differences of pine populations were found in tree height. The highest mean tree height (11.68 m) was reported for Rychtal (Poland) provenance, while the lowest (6.77 m) for Çatacik (Turkey). The overall mean tree height in the whole experiment was 9.83 m. Diameter at breast height (dbh) varied more than the tree height. The highest mean dbh (129.91 mm) was reported for Haguenau (France) provenance, while the lowest (72.85 mm) again for Çatacik (Turkey). The overall mean dbh for all provenances equaled 107.12 mm. The highest differences of pine populations were found in the standing volume. The highest standing volume (19.05 m3/ha) was obtained for Pornóapáti (Hungary) provenance, while the lowest (163.72 m3/ha) again for Çatacik (Turkey). In terms of silvicultural quality, the northern provenances were classified as the best ones because of high proportion of trees with straight stems. The largest share of tress with straight stems occurred in the population of Serebryanskoe from Russia (60.8%), while the smallest of Haguenau from France (6.9%). The populations from Southern Europe (Maočnica, Prusačka Rijeka and Çatacik) show poor adaptation to environmental conditions of central Poland.
Źródło:
Sylwan; 2016, 160, 03; 230-237
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wielocechowa ocena potomstwa populacji buka zwyczajnego (Fagus sylvatica L.) z południowo-wschodniej Polski w początkowych latach wzrostu
Multivariable evaluation of the early growth performance of European beech (Fagus sylvatica L.) provenances from south-eastern Poland
Autorzy:
Buraczyk, W.
Szeligowski, H.
Studnicki, M.
Drozdowski, S.
Bielak, K.
Powiązania:
https://bibliotekanauki.pl/articles/989437.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
drzewa lesne
buk zwyczajny
Fagus sylvatica
proweniencje
drzewa potomne
przezywalnosc
wzrost roslin
cechy fenologiczne
jakosc hodowlana
doswiadczenia proweniencyjne
Nadlesnictwo Losie
genetic variability
growth parameters
morphological traits
phenology
progeny testing
Opis:
European beech is one of the most important broadleaved tree species in Poland and will play probably even more significant role in the future due to the predicted climate change. The main objectives of this study was to analyse and compare the growth parameters and morphological traits between 23 European beech provenances from south−eastern Poland (fig. 1). The research was conducted on the experimental plot established in Łosie Forest District in 2006. The experiment employed a randomized complete block design consisting of 92 plots (23 provenances×4 blocks). On each plot 100 trees representing given provenance were planted in 1.5×1.5 m spacing. In the spring and autumn 2015 we measured and determined the following parameters for the subsample of 36 trees on each plot: survival rate, tree height, diameter at breast height, diameter of the branch at the middle height of the crown length, stem straightness, crown shape, tendency to create forks, mean angle between stem and branches and spring phenology. We also included different eco−physiographical characteristics for each provenances (tab. 1). We performed basic statistics to describe mean values and standard errors (fig. 2, tab. 2) and finally we quantified the interaction between traits and eco−physiographical characteristics by Principal Component Analysis (PCA) (fig 3, tab. 3). The obtained results indicates that under growth conditions on experimental trial in Łosie Forest District, the provenances from lower elevated regions with lower precipitation and higher mean temperature (i.e. more arid conditions; Kielce and Narol provenances) were characterized by thicker dbh and branch dimeters in contrast to regions from southern Poland (Łosie, Bricza 1, Stary Sącz and Nawojowa). European beech provenances from regions with more humid conditions and lower mean annual temperature, as well as shorter vegetation season are characterized by higher survival rate. They are also higher than other provenances, but reveal the lower ratio dbh to branch diameter.
Źródło:
Sylwan; 2016, 160, 12; 981-992
0039-7660
Pojawia się w:
Sylwan
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:
Wzrost mikoryzowanych i niemikoryzowanych sadzonek sosny zwyczajnej (Pinus sylvestris L.) w warunkach zróżnicowanej wilgotności i żyzności podłoża
Growth of mycorrhized and non-mycorrhized Scots pine (Pinus sylvestris L.) seedlings on substrates varying in moisture content and fertility
Autorzy:
Buraczyk, W.
Szeligowski, H.
Aleksandrowicz-Trzcińska, M.
Drozdowski, S.
Jakubowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/995070.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
drzewa lesne
gleby lesne
gleby porolne
wilgotnosc gleby
zyznosc gleb
sosna zwyczajna
Pinus sylvestris
sadzonki mikoryzowane
grzyby mikoryzowe
Hebeloma crustuliniforme
sadzonki niemikoryzowane
wzrost roslin
scots pine
seedling
mycorrhization
hebeloma crustuliniforme
container−grown seedlings
Opis:
The article compares the impact of production technique, planting material, soil type and moisture on the growth of pine seedlings. The material used in the experiment comprised pines grown in containers to which controlled mycorrhization with the fungus Hebeloma crustuliniforme was applied, as well as pines that had not been mycorrhized. The seedlings were grown in pots on two types of substrate (forest and post−agricultural soil) varying in cohesiveness and fertility. Four moisture levels (20%, 30%, 40% and 50%) were adopted.
Źródło:
Sylwan; 2012, 156, 02; 100-111
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność wybranych cech potomstwa buka zwyczajnego (Fagus sylvatica L.) na powierzchni testowania w Nadleśnictwie Łosie
Variability of selected features in progeny of the common beech (Fagus sylvatica L.) grown on the experimental plot in the Losie Forest District
Autorzy:
Szeligowski, H.
Buraczyk, W.
Drozdowski, S.
Bielak, K.
Widawska, Z.
Będkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/979509.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewa lesne
buk zwyczajny
Fagus sylvatica
proweniencje
drzewa potomne
zmiennosc cech
przezywalnosc
wysokosc drzew
piersnice drzew
fenologia
wartosc hodowlana
doswiadczenia proweniencyjne
Nadlesnictwo Losie
common beech
provenance
variability
silvicultural value
lesnictwo
hodowla lasu
Opis:
This paper presents the genetic variability in the growth parameters and morphological traits, as well as the silvicultural quality of progeny of 23 European beech (Fagus sylvatica L.) provenances from south−eastern Poland. The research was conducted on the experimental plot established in the Łosie Forest District in spring 2006. After 10 years, during the spring and autumn, we determined and measured the spring phenology and survival rate, the diameter at breast height (dbh), the tree height, and the straightness of trunk. The results obtained point out the considerable variability of analysed features, both within and between different beech populations (tab.). Highest and lowest survival rates are noted for the beeches from Lutowiska and Leżajsk (populations 451 and 461), respectively (fig. 2). Lowest mean height and dbh were achieved by beeches from Bircza (453), while the tallest and broadest trees were from the Kielce population (390) (fig. 3−4). The overall silvicultural assessment based on survival, height, dbh, spring phenological phases and straightness of the trunk revealed that the most valuable populations of beech are those originating from Kielce (390), Bircza (454), Strzyżów (459), Lesko (452), Rymanów (457) and Lutowiska (451). In turn, the analysis resulted in least favourable assessments for beeches from Bircza (453) and Gromnik (362). Thus, we confirmed also that trees of local origin are not always best−adapted to (and do not always grow best in) the place they originate from. The obtained results are highly relevant from the principles of creating the seed source regions for beech in Poland, as the proper selection of a population for the given place of growth may yield benefits for forest ecology and management.
Źródło:
Sylwan; 2019, 163, 03
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:
Planowanie hodowlane w drzewostanach jodłowych o złożonej strukturze z wykorzystaniem metody BDq w Nadleśnictwie Zagnańsk
Silvicultural planning in complex structures of silver fir by means of the BDq method in Zagnańsk Forest District
Autorzy:
Drozdowski, S.
Bielak, K.
Buraczyk, W.
Gawron, L.
Jaros, R.
Żybura, H.
Powiązania:
https://bibliotekanauki.pl/articles/990985.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
drzewostany jodlowe
jodla pospolita
Abies alba
planowanie hodowlane
struktura drzewostanu
ksztaltowanie struktury
metoda BDq
close−to−nature silviculture
complex stand structure
multifunctional forestry
silver fir
silvicultural planning
Opis:
The paper deals with problems concerning silvicultural planning in silver fir stands in Zagnańsk Forest District (central Poland) that are characterized by complex structure. Based on a detailed inventory using 98 permanent circular sample plots in four control units the BDq method was employed for determining the future silvicultural activities of the current forest management cycle. The equilibrium model is based on diameter distributions and has the following parameters: B=35 m²/ha; D=63 cm and q−factor=1.28.
Źródło:
Sylwan; 2014, 158, 09; 651-660
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł

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