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Tytuł:
Porównanie metod szacowania pozyskaniowych szkód glebowych na przykładzie rębnego drzewostanu bukowego
A comparison of methods to estimate harvest-induced damage to the soil using the example of a beech timber stand
Autorzy:
Kulak, D.
Powiązania:
https://bibliotekanauki.pl/articles/1312645.pdf
Data publikacji:
2014
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewostany bukowe
pozyskiwanie drewna
ciecia rebne
zrywka drewna
szkody w lesie
gleby lesne
warstwa wierzchnia
uszkodzenia gleby
szacowanie szkod
metody szacowania szkod
logging damage
indicators of soil damage
beech timber stand
agricultural tractor
Opis:
The study determines the extent of soil disturbances occurring during mechanised harvesting operations in a beech timber stand and investigates whether applying different research methods can be used to classify, in a comparable way, forest areas with different levels of soil damage. In the analysed stand, felling and on-site processing were conducted with chainsaws, while extracting – using an farm tractor. After the completion of logging operations, visible soil disturbances on each sample plot were measured, including their area, volume and depth, and the value of five most common indicators of soil damage was calculated. The share of disturbed surface area, the volume of soil disturbances and different soil damage indicators allowed sample plots to be arranged in the same way according to increasing levels of soil damage occurring during harvesting. A different order was observed only in relation to the depth of the ruts formed. The similarity of the applied measures and classifications of soil disturbances indicates that all of the methods can be applied to make simple comparisons of the degree of soil damage. Because field trials are easy to perform, soil damage indicators based on a visual assessment of soil condition, without the need to take measurements, are worth recommending at first. A fuller picture of the level and nature of detected soil damage, however, can be obtained by taking into account the depth of the disturbance.
Źródło:
Leśne Prace Badawcze; 2014, 75, 3; 245-251
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dokładność statystycznej metody reprezentacyjnej a zmiany wielkości zasobów drzewnych w kolejnych rewizjach urządzania lasu
A comparison of two growing stock assessments by stratified sampling - how does accuracy of inventory affect our interpretation of the results
Autorzy:
Jablonski, M.
Powiązania:
https://bibliotekanauki.pl/articles/46349.pdf
Data publikacji:
2013
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
urzadzanie lasu
zasobnosc drzewostanu
zasoby drzewne
szacowanie
metody statystyczne
metoda reprezentacyjna
dokladnosc
Źródło:
Leśne Prace Badawcze; 2013, 74, 1
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stan wielogatunkowego lasu naturalnego (Abies, Fagus, Picea) regla dolnego w rezerwacie Oszast na tle monokultur świerkowych w Beskidzie Żywieckim i Beskidzie Śląskim
A comparison of lower montane natural forest (Abies, Fagus, Picea) in Oszast Reserve and spruce monocultures in the Zywiecki Beskid and Slaski Beskid
Autorzy:
Jaworski, A.
Pach, M.
Powiązania:
https://bibliotekanauki.pl/articles/1316186.pdf
Data publikacji:
2014
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
lasy gorskie
regiel dolny
rezerwaty przyrody
rezerwat Oszast
las naturalny
drzewostany wielogatunkowe
sklad gatunkowy
swierk pospolity
Picea abies
buk zwyczajny
Fagus sylvatica
jodla pospolita
Abies alba
klon jawor
Acer pseudoplatanus
jarzab pospolity
Sorbus aucuparia
zmiany skladu gatunkowego
zasobnosc drzewostanu
struktura drzewostanu
rozklad piersnic
smiertelnosc
odnowienia lasu
stand volume
dbh distribution
mortality
regeneration
Opis:
The aim of this research was to find out what changes occurred between 1999-2009 in Oszast reserve in the volume, species composition and diameter at breast height (dbh) distribution of the forest stand, and the number and height of regeneration. The objective was to determine what would be condition of these managed lower montane multispecies forest stands (Swiss irregular shelterwood method or selection cuttings) and what role spruce would play in them if they have not been replaced by spruce monocultures. The research was conducted on three permanent circular sample plots (s.p.), each had size of 1/3 ha. Over 10 years, standing volume of the forest stand increased on s.p. 1 (from around 562 m3 ha-1 to 649 m3 ha-1) and s.p. 3. (from 653 m3 ha-1 to 660 m3 ha-1), while decreased on s.p. 2. (from 421 m3 ha-1 to 378 m3 ha-1). The species composition, defined on the basis of volume share (averaged for the three s.p. jointly), did not undergo consistent changes. However, the relative dominance of beech over spruce was determined based on tree numbers. The average spruce mortality (averaged from three s.p.) did not exceed 10% and was slightly higher than that of beech (6%), and lower than fir mortality (15%). Nevertheless, spruce did not show any symptoms of dieback. The reasons behind its mortality were fallen trees and windbreaks. In regeneration, on the whole, beech or sycamore predominated, and the proportion of spruce and fir was small. In the future spruce and fir may even decrease further by competitive ability of dynamically regenerating beech. Abandonment of forest management to promote greater diversity of species, may favour the formation of beech monocultures, or forest stands dominated by beech, everywhere that beech is already present or will be introduced. The maintenance of stable, multispecies forest stands, with co-dominant fir, beech and spruce of native origin, requires natural or artificial regeneration of spruce and fir, manipulated to restore fir up to about 30%, and reduce spruce down to about 40%. This would be possible through the use of the Swiss irregular shelterwood method and selection system, and by continuous tending of regeneration.
Źródło:
Leśne Prace Badawcze; 2014, 75, 1; 13-23
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zróżnicowanie sektora leśnego w Polsce na tle krajów Unii Europejskiej
Diversity of forestry sector in Poland in comparison to the European Union
Autorzy:
Słupska, A.
Powiązania:
https://bibliotekanauki.pl/articles/11236724.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
sektor lesno-drzewny
Polska
Unia Europejska
analiza czynnikowa
metoda Perkala
lesnictwo
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura; 2016, 71, 3; 73-81
0365-1118
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Możliwości porównywania jakości technicznej drzewostanów różnych faz rozwoju
Vozmozhnost sravnenija tekhnicheskogo kachestva nasazhdenijj raznykh faz razvitija
Possibilities of comparison of technical quality of stands in different development stages
Autorzy:
Barszcz, A.
Powiązania:
https://bibliotekanauki.pl/articles/824517.pdf
Data publikacji:
1988
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany
fazy rozwojowe
drzewa lesne
jakosc techniczna
analiza porownawcza
Źródło:
Sylwan; 1988, 132, 11-12
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie sposobów określania składu gatunkowego drzewostanów obrębu leśnego
Comparison of the methods of determining the tree species composition of stands in a forest district
Autorzy:
Bruchwald, A.
Miścicki, S.
Dmyterko, E.
Stereńczak, K.
Wysocka-Fijorek, E.
Powiązania:
https://bibliotekanauki.pl/articles/985705.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
sklad gatunkowy
struktura gatunkowa
metody badan
analiza porownawcza
obreby lesne
basal area
cover
diversity
sample plot
survey
volume
Opis:
In Polish forest management planning, the species composition of stands in a forest district is established by adding up the volumes of tree species from individual forest stands. These volumes are calculated according to the estimated share of species cover and the estimated volume of the entire forest stand. The species structure of stands in a forest district, established on the basis of such a method, may be different than that obtained from sample plots. The aim of the study was to compare three ways of determining the tree species structure of stands in a forest district. In Method 1, the species composition was estimated on the basis of the volume of trees measured on sample plots as part of a periodic forest inventory based on stratified sampling. The same data were used in Method 2, but the share of species was calculated on the basis of the basal area. In Method 3, the species structure was estimated according to the volume of trees estimated in each forest stand based on the cover of a given species. The empirical material was collected in 53 forest districts. In method 1 and 2, data from an average of 740 sample plots within the forest district were used. In Method 3, data from the forest stand descriptions contained in the database of the State Forests Information System were used. For each forest district, species composition was calculated, including 6 tree species and 8 groups of tree species. For all forest districts, the average shares of individual species and groups of species differed, depending on the applied method (tab. 1). In case of methods 1 and 2, the biggest difference was found for pine – the most numerous species – but it was also big for less numerous ones: birch and oak (tab. 2). In case of methods 1 and 3, the biggest difference in share was also found for pine (tab. 3). The greater the species diversity of a forest district (determined according to Simpson’s index of diversity), the greater was the average difference in the estimated share of an individual species (figs. 1 and 2). The method of determining the species structure in a forest district used in forest management practice nowadays was considered insufficient. It was proposed to establish it in larger units (subclass, age class, forest district) only according to the volume of trees measured on the sample plots (without rounding and ‘switching’ of species), using the stratified sampling method.
Źródło:
Sylwan; 2019, 163, 05; 365-372
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie oceny zwarcia drzewostanu za pomocą metody wizualnej i zwarciomierza
Comparison of visual estimation of the canopy cover with the canopyscope assessment
Autorzy:
Chmura, D.
Salachna, A.
Sierka, E.
Powiązania:
https://bibliotekanauki.pl/articles/989315.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany
fitosocjologia
zwarcie drzewostanu
metody oceny
metoda wizualna
metoda kanopiskopowa
kanopiskop
zwarciomerz zob.kanopiskop
canopy closure
ocular estimate cover
phytosociology
Opis:
he visual estimates of tree canopy cover belong to the fundamental measurements of analytical features of forest phytocoenoses. However, it is the subjective method, which results in error difficult to control. The objective of the research was to present a canopyscope and to compare results of canopy cover estimation using it with visual estimates. We conducted several experiments in oak−hornbeam, pine and spruce forest stands in southern Poland. We engaged in fieldwork well− and less−experienced students, i.e. biologists skilled in methods of phytosociology and students of nature engineering as well as three professional phytosociologists. They performed a comparative research in terms of correlation analyses, analysis of coefficients of variation and intra−class correlation (ICC) between−observers and between−methods using both ways of canopy cover estimates. The correlation between canopyscope score and results of visual estimates was highest in the group of phytosociologists (rs=0.82, p<0.001) followed by well−experienced students (rs=0.72, p<0.001) and less−experienced persons (rs=0.62, p<0.001). For purpose of comparison of both methods two variants of visual method were applied: optional visual cover estimate, and adjusted visual method where percentage cover of tree layer was noted using 4% intervals likewise in canopyscope method. The results of visual estimate method were characterized by more than threefold higher variation (CV%=9.72 and CV%=9.46 for optional variant and adjusted variant respectively) in comparison with canopy−scope method (CV%=2.26) in repeating measurements on the same plot. In terms of repeatability, analysis yielded 0.873 (p<0.0001) and 0.622 (p=0.00682) values of ICC for canopyscope and adjusted visual estimate respectively between two phytosociologists. The result of intra−class correlation for comparison between methods within each rater separately revealed low and non−significant value of ICC. We suggest using canopyscope because this method is more precise, reliable and repeatable than visual estimation. Moreover, canopyscope is easier and more convenient to use when compared to objective methods as hemispherical photography of tree canopy and image analysis.
Źródło:
Sylwan; 2016, 160, 06; 475-481
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie zmienności genetycznej pokolenia matecznego i sztucznie wyhodowanego potomstwa sosny zwyczajnej na podstawie analiz DNA
Comparison of the genetic variability of Scots pine trees and their progeny from nursery production based on DNA analyses
Autorzy:
Konecka, A.
Tereba, A.
Bieniek, J.
Nowakowska, J.A.
Powiązania:
https://bibliotekanauki.pl/articles/985843.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
sosna zwyczajna
Pinus sylvestris
zmiennosc genetyczna
analiza DNA
markery mikrosatelitarne
drzewa mateczne
drzewa potomne
sadzonki z zakrytym systemem korzeniowym
genetic diversity
ssr markers
forest nursery production
pinus sylvestris l.
Opis:
The production of forest tree species in forest nurseries is performed via two main breeding systems: i) the traditional (conventional) way with the seedlings grown in soil, and ii) plants cultivated in the containers. The aim of the study was to assess the level of genetic variability in the populations of the mother stands and the progeny populations of Scots pine cultured with traditional way (in soil) and in containers in two nurseries in Olsztynek (N Poland) and Oleszyce (S Poland) forest districts. Four polymorphic microsatellite markers (SPAG 7.14, SPAC 11.6, SPAC 12.5 and SsrPt_ctg4363) were used to evaluate the genetic variability of the studied populations. The basic hypothesis assumed that higher gene pool characterizes the seedlings grown in the containers comparing to the seedlings grown in the ground. The results confirmed that. Seedlings from containerized breeding had larger gene pool and were more diverse than plants with conventional breeding, both in Olsztynek and Oleszyce. Our study revealed a significant human impact on shaping the pool of forest genetic resources of Polish forests at the early stage of nursery production and showed the need for a broader study on further stages of cultivation of forests.
Źródło:
Sylwan; 2018, 162, 01; 32-40
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie kilku metod obliczania wartości gruntów leśnych
The comparison of several forest ground calculating methods
Autorzy:
Zydroń, A.
Walkowiak, R.
Moliński, K.
Powiązania:
https://bibliotekanauki.pl/articles/1016263.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
metody wyceny
metoda Glasera
metoda Standardu
metoda Faustmanna
metoda Martineita
metoda wyceny gruntow przyleglych
analiza porownawcza
metoda Riebla
wartosc
metoda Bauza
lesnictwo
grunty lesne
forest grounds calculating
cluster analysis
correlation matrix
Opis:
In the paper the values of forest grounds were calculated using profitable methods (Bauz, Faustmann, Martineit, Glaser, Riebel) as well as standard methods. The results were also compared with the data containing the value of adjacent grounds. The forestry managements used for the research have been typed according to natural, economical and social criteria. In order to compare the above mentioned methods, the results have been analyzed by cluster analysis and correlation matrix.
Źródło:
Sylwan; 2007, 151, 06; 3-11
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
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:
Porównanie ciepła spalania i wartości opałowej szyszek wybranych gatunków drzew leśnych
Comparison of heat of combustion and calorific value of the cones and wood of selected forest tree species
Autorzy:
Aniszewska, M.
Gendek, A.
Powiązania:
https://bibliotekanauki.pl/articles/1312894.pdf
Data publikacji:
2014
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
biomasa
szyszki
cieplo spalania
wartosc opalowa
drzewa lesne
sosna zwyczajna
Pinus sylvestris
swierk pospolity
Picea abies
modrzew europejski
Larix decidua
jodla pospolita
Abies alba
cone
wood
biomass
heat of combustion
calorific value
Opis:
Every year, scaling plants buy (up to tens of tons) cones which needs to be peeled. After the process of scaling, the cones themselves are waste, which is partly sold. The problem of waste disposal is especially severe in plants where the processing is performed by electrically-powered scaling cabinets, but the problem does not apply to facilities where pellets are burned to produce heat. We examined the heat of combustion and calorific value of the residues from scaling plants that can be used in the production of refined wood fuels. The residues consist of the empty cones of pine, spruce, larch as well as husks and stems of silver fir. Additionally, we conducted measurements of the heat of combustion for wood and cones of each species and compared them to their respective calorific values The results revealed that the average calorific value of the cones is in the range 17.81–19.86 MJ/kg. Our work showed that empty cones have a significantly higher calorific value and heat of combustion than the wood of spruce, larch and fir. In the case of pine, cones and wood did not differ significantly. These results led us to the conclusions that empty de-scaled cones can be utilized as a valuable primary solid fuel or fuel additive for the production of refined products for the local market. Due to the low annual production of cones in comparison to other materials such as sawdust and wood chips, pine cones should be used as a supplement, to enrich fuels of inferior quality by enhancing their energetic properties.
Źródło:
Leśne Prace Badawcze; 2014, 75, 3; 231-236
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie struktury wielkości jeżyny gruczołowatej (Rubus hirtus Waldst. & Kitt. agg.) z populacji rosnących na glebach wykształconych na różnych podłożach geologicznych
Comparison of the size structure of the blackberry [Rubus hirtus Waldst. and Kitt. agg.] from the populations growing on the soils developed on different geological substrates
Autorzy:
Gazda, A.
Kochmańska-Bednarz, A.
Powiązania:
https://bibliotekanauki.pl/articles/1009443.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
botanika lesna
krzewy
populacje roslin
jezyna gruczolowata
Rubus hirtus
pedy
struktura wielkosci
struktura przestrzenna
czynniki siedliska
podloze geologiczne
population structure
size structure
rubus hirtus
bedrock type
soil type
Opis:
The objective of the paper was to determine the size structure of the canes and individuals of Rubus hirtus populations and compare them with regard to the type of soils developed on different geological substrates (granodiorite partially covered by boulders, weathered rocks, river sediments, loams and rock rubble for podzolic soil; limestone and conglomerate interlayers for humus−rich and brown rendzinas and on Carpathian flysh for acid brown soil). The mean Rubus hirtus density on all study sites significantly differed from each other. The highest ramet density (11 individuals/m2 ) was noted on the "Dolina Łopusznej" site, while individuals from the populations on the remaining study sites occurred locally in smaller or larger clusters. The shoots of Rubus hirtus growing on podzolic soils significantly differed from those growing on acid brown soil. Long shoots (over 50 cm) on all sites constituted only a few per cent. The Rubus hirtus populations on the "Szczoty" and "Dolina Łopusznej" sites established over 50 cm high shoots, potentially capable of producing roots with the probability of 0.14. Individuals producing a single the main primocane with the probability of over 0.7 were the most frequent. Less than 10% of the individuals which in the previous year produced at least one main shoot failed to establish new main shoots at all. The number of flowering/ fruiting individuals did not exceed 20% on none of the study sites. The studied populations produced a few new ramets. The results obtained from the research permit suggesting that the underlying bedrock is the primary, while light is the secondary, factor affecting the presence of Rubus hirtus plants. This species colonises areas where the stand canopy is broken even to a slight degree.
Źródło:
Sylwan; 2010, 154, 05; 347-355
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie wybranych właściwości fizycznych drewna młodocianego i dojrzałego sosny zwyczajnej (Pinus sylvestris L.) z drzewostanów rębnych
Comparison of selected physical properties of the juvenile and mature wood of Scots pine [Pinus sylvestris L.] from mature stands
Autorzy:
Tomczak, A.
Jelonek, T.
Zoń, L.
Powiązania:
https://bibliotekanauki.pl/articles/1009416.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany rebne
drzewa lesne
sosna zwyczajna
Pinus sylvestris
drewno dojrzale
drewno mlodociane
wlasciwosci fizyczne
gestosc drewna
gestosc umowna
kurczliwosc
juvenile wood
mature wood
basic density
shrinkage
scots pine
Opis:
The paper presents results of a comparative analysis of basic density and shrinkage of juvenile and mature wood of Scots pine (Pinus sylvestris L.). Mature wood turned to exhibit higher density and shrinkage. Differences are dependent on the location of a sample at the stem profile. Properties of juvenile wood exhibit higher variability in comparison to those of mature wood, especially in relation to shrinkage.
Źródło:
Sylwan; 2010, 154, 12; 809-817
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka wybranych cech morfologicznych świerków wpływających na ich stabilność, ukształtowanych w wyniku stosowania różnych rębni w borze górnoreglowym na Pilsku
Comparison of various cutting systems affecting those morphological features that determine stability in the Pilsko high mountain spruce forest
Autorzy:
Jaworski, A.
Pach, M.
Powiązania:
https://bibliotekanauki.pl/articles/45403.pdf
Data publikacji:
2011
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
Pilsko
regiel gorny
drzewostany swierkowe
ciecia przerebowe
rebnie zupelne
drzewa lesne
swierk pospolity
Picea abies
cechy morfologiczne
wzgledna dlugosc korony
wspolczynnik smuklosci
zywotnosc drzew
stabilnosc
Źródło:
Leśne Prace Badawcze; 2011, 72, 2
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie ilości martwego drewna leżącego w drzewostanach sosnowych i świerkowych Skandynawii przy różnych szerokościach geograficznych
Comparison of the amount of dead wood resources in Scots pine and Norway spruce stands at different latitudes in Scandinavia
Autorzy:
Tomusiak, R.
Kedziora, W.
Krzemien, W.
Moskwa, A.
Karbownik, O.
Mazur, R.
Powiązania:
https://bibliotekanauki.pl/articles/881703.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
lesnictwo
drzewostany sosnowe
drzewostany swierkowe
sosna zwyczajna
Pinus sylvestris
swierk pospolity
Picea abies
drewno martwe lezace
ilosc drewna martwego
gradient szerokosci geograficznej
Szwecja
Norwegia
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2014, 16, 4[41]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 16

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