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Wyświetlanie 1-15 z 67
Tytuł:
Występowanie i rola jodły pospolitej (Abies alba Mill.) w lasach Krainy Bałtyckiej
Autorzy:
Miś, R.
Powiązania:
https://bibliotekanauki.pl/articles/1022024.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
jodla pospolita
wystepowanie
Kraina Baltycka
Abies alba
lesnictwo
drzewa lesne
abies alba mill.
forests
baltic region
Opis:
The paper presents a synthesis of research results initiated in 1981. The results obtained so far confirm that the Abies alba Mill. is an attractive component of mixed stands and fuffils both protective and economical functions in the forest of the Baltic Region.
Źródło:
Sylwan; 2005, 149, 06; 21-33
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wstępne badania nad mrozoodpornością jodły pospolitej (Abies alba Mill.) w Górach Świętokrzyskich
Autorzy:
Dolnicki, A.
Kuchciński, L.
Powiązania:
https://bibliotekanauki.pl/articles/1026545.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Gory Swietokrzyskie
jodla pospolita
Abies alba
mrozoodpornosc
lesnictwo
drzewa lesne
gory
frost−hardiness
silver fir
Opis:
Preliminary studies on frost−hardiness of the current year shoots of silver fir were conducted between the autumn of 1999 and the spring of 2000 on the 20−25 year old saplings, collected in 13 sample plots distributed throughout the Świętokrzyski National Park.The diffusion of electrolytes from shoots and needles kept in a freezer at the temperature of −33°C was analysed using the Dexter's (1932) method. The highest degree of frost−hardiness of shoots and needles was found in February. In spring the resistance to low temperatures declined faster in shoots than in needles.The investigations showed significant differences in the frost−hardiness of young silver firs from different sample plots.
Źródło:
Sylwan; 2003, 147, 08; 84-92
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Szkodniki nasion i szyszek jodly pospolitej Abies alba Mill. w Swietokrzyskim Parku Narodowym
Autorzy:
Bak, J.
Powiązania:
https://bibliotekanauki.pl/articles/816415.pdf
Data publikacji:
1995
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
jodla pospolita
owady
szkodniki nasion
Abies alba
szkodniki szyszek
Swietokrzyski Park Narodowy
ochrona lasu
lesnictwo
drzewa lesne
Źródło:
Sylwan; 1995, 139, 08; 87-97
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Budowa morfologiczna drzew oraz wybrane wlasciwosci drewna lipy drobnolistnej [Tilia cordata Mill.] w rezerwacie "Obrozyska" pod Muszyna
Autorzy:
Niedzielska, B.
Powiązania:
https://bibliotekanauki.pl/articles/814410.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Tilia cordata
rezerwat Obrozyska
wzrost roslin
lipa drobnolistna
drewno brzozowe
gestosc
rezerwaty przyrody
lesnictwo
budowa morfologiczna
przyrosty roczne
drzewa lesne
Źródło:
Sylwan; 2001, 145, 12; 75-86
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potencjalny zasięg klimatyczny jodły (Abies alba Mill.) w Polsce
Potential climatic range for Abies alba Mill. in Poland
Autorzy:
Bolibok, L.
Zajączkowski, J.
Dobrowolska, D.
Mionskowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/989280.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
jodla pospolita
Abies alba
zasieg wystepowania
potencjalny zasieg klimatyczny
Polska
silver fir
natural range potential climatic range
biocilmate envelops
Opis:
Numerous examples of silver fir stands growing outside its geographical range in northern Poland suggest that this species could be used in a greater extend in creation of managed forest stands. Climatic conditions could potentially constrain the use of this species in some parts of country. The objective of this work was to determine the potential climatic range of Abies alba in Poland. The bioclimatic envelope models were used to identify areas in which selected climatic variables show the same range of variability as observed within natural range of this species. Climatic data with 10' spatial resolution were used. The outcome of the analysis depends to large extent on the demarcation of natural range (in which the variability of tolerable climatic conditions is assessed). The model basing on the climatic conditions in whole natural range of silver fir in Europe suggest that almost whole area of Poland is suitable to fir, but models basing only of climatic conditions in Polish part of its natural range are much more conservative. In the last case the difference in extent between natural range and potential climatic range was smaller. As genetic variability of Polish fir populations is rather low, they are supposed to have constrained adaptative abilities. Forest managers should not focus on planting silver fir outside its natural range, but they rather should consider reintroduction of fir in parts of natural range from where it retreated in 20th century.
Źródło:
Sylwan; 2016, 160, 06; 519-528
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Struktura klonalna wiązu polnego (Ulmus minor Mill.) w Polsce
Clonal structure of field elm (Ulmus minor Mill.) in Poland
Autorzy:
Chudzińska, M.
Litkowiec, M.
Pałucka, M.
Pasławska, A.
Lewandowski, A.
Kozioł, C.
Powiązania:
https://bibliotekanauki.pl/articles/979539.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
dendrologia
drzewa lesne
wiaz polny
Ulmus minor
zmiennosc genetyczna
markery genetyczne
markery mikrosatelitarne
clonality
field elm
genetic conservation
genetic variation
microsatellite markers
Opis:
Field elm (Ulmus minor Mill.) is distributed mainly across central and southern Europe. In Poland this species occurs in the lowlands and foothills, where it grows mainly in the floodplain forests along the rivers. U. minor exists in a variety of climatic and ecological conditions. It is capable to tolerate floods as well as drought. Currently, most populations of U. minor are small and fragmented resulting from human activity and Dutch elm disease. Moreover, in the natural field elm populations, vegetative propagation by root suckers or sprouting can be observed. All these factors may affect the level of genetic variation of U. minor populations in Poland. In the present study, we determined the level of genetic variation and the clonal diversity of twelve natural U. minor populations in Poland (407 individuals) using eight nuclear microsatellite loci. The obtained results indicate that the studied field elm populations are characterized by low level of genetic variation (He=0.382; Ho=0.555; A=7.0). Additionally, the high level of clonality in field elm populations was estimated. The clonality level of examined elm populations varied among them, and in some cases was very high. Out of the 407 individuals analysed for clonal structure only 61 multilocus genotypes were identified. Furthermore, only one genotype was identified in the three study populations of field elm, which means that in each of these populations all trees belong to one genet. The values of genotypic richness (R) were heterogeneous among populations, with mean 0.148. The knowledge on the genetic diversity and the clonal structure of U. minor populations is essential to make future decisions regarding conservation of genetic resources of this species in Poland.
Źródło:
Sylwan; 2019, 163, 10; 839-845
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zasoby drzewne lipy drobnolistnej (Tilia cordata Mill.) w Lasach Państwowych
Resources of small-leaved lime (Tilia cordata Mill.) in the State Forests
Autorzy:
Gil, W.
Zajączkowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/986717.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy panstwowe
Panstwowe Gospodarstwo Lesne Lasy Panstwowe
drzewa lesne
lipa drobnolistna
Tilia cordata
zasoby drzewne
miazszosc drzew
small−leaved lime
yield
forest sites
overstory
undergrowth
Opis:
We analyzed data on wood resources of small−leaved lime in the forests managed by the State Forests, depending on the type of occurrence, age of trees, type of forest site, soil and region of the country. Particular attention was paid to the mature and close−to−mature stands with lime occurring in the overstory and undergrowth. We pointed regions and habitat conditions that are most favorable for the growth of small−leaved lime, from the point of view of its productivity. As for January 1st, 2016, the wood resources of lime amounts to 5.4 million m3 of timber. The largest part occurs in Wrocław and Olsztyn Regional Directorates of the State Forests. About 89% of the total timber resources of lime is located in the stands overstory. The timber volume of mature and close−to−mature stands (aged over 60) is 71% of the total volume. 50% of the wood resources of this layer is located in stands with 10 and 20% share of lime. The greatest average timber volume (255 m3/ha) was stated in stands with the share of lime at the level of 90%, while the average volume of the overstory is nearly 160 m3/ha. Also the wood resources of lime trees in undergrowth grows with the growing share of this species to reach about 90 m3/ha in the case of pure lime undergrowth. The largest volume is characteristic for stands with lime trees in the IV and V age classes. The lime stands growing on fresh forest and upland forest sites, and on brown and rusty soils are the most productive. The richest lime stands in the country, growing on fresh and moist forest habitats, reach over 500 m3/ha. We observe a small but steady increase in the share of small−leaved lime in the stands managed by the State Forests, in terms of both surface and volume.
Źródło:
Sylwan; 2017, 161, 10; 812-821
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza rozmieszczenia zasobów jodły pospolitej (Abies alba Mill.) w Górach Bardzkich
Analysis of silver fir [Abies alba Mill.] distribution in the Bardzkie Mountains
Autorzy:
Filipiak, M.
Kmiecik, M.
Powiązania:
https://bibliotekanauki.pl/articles/1012292.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
jodla pospolita
wystepowanie
stanowiska
Abies alba
Gory Bardzkie
lesnictwo
ekologia lasu
drzewa lesne
ecology
abies alba
sudety mountains
site types
slope inclination
exposure
age classes
Opis:
The data originating from various sources (floristic publications, comprehensive questionnaires, and forest assessment data) concerning of the silver fir localities in Bardzkie Mountains (the central part of the Sudety Mountains) were verified. The number of localities and the area covered by the fir in various forest site types, age classes, elevation zones, slopes inclination and exposure classes were determined. The participation of fir in the stands occurring in different conditions were analysed.
Źródło:
Sylwan; 2009, 153, 07; 457-465
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ekofizjologia jodły pospolitej (Abies alba Mill.) w młodym wieku Synteza wyników badań
Ecophysiology of silver fir [Abies alba Mill.] at the young age. Synthesis of study
Autorzy:
Robakowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/972850.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
jodla pospolita
reakcja na temperature
przystosowanie do srodowiska
sadzonki
Abies alba
reakcja na swiatlo
lesnictwo
ekofizjologia
drzewa lesne
nitrogen allocation
biomass allocation
chlorophyll a fluorescence
photosynthesis
phenotypic
plasticity
light
temperature
Albies alba
Opis:
This article is the synthesis of the study on the ecophysiology of silver fir (Abies alba Mill.) conducted from 1998 to 2004. Seedlings of silver fir originating from different provenances were used for the experiments in a climate chamber, a nursery and in natural conditions. One of the most important results of this study was the parameterization of the model of silver fir photosynthesis. It was also found that phenotypic plasticity of some morphological and physiological patterns of silver fir at the young age was lower than that of the other tree species and depended on seedlings origin.
Źródło:
Sylwan; 2006, 150, 04; 44-52
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tempo wzrostu wysokości i pierśnicy jodły pospolitej (Abies alba Mill.) w Beskidzie Niskim
Height and diameter growth rates of silver fir (Abies alba Mill.) growing in Beskid Niski mountains
Autorzy:
Bruchwald, A.
Dmyterko, E.
Niemczyk, M.
Łukaszewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/989756.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
jodla pospolita
Abies alba
wzrost roslin
wysokosc drzew
piersnice drzew
przyrost piersnicy
przyrost wysokosci
tempo wzrostu
Beskid Niski
height growth rate
diameter growth rate
spatial diversity of canopy layers
physical age
abies alba
Opis:
Silver fir is one of the main tree species of mountain and foothill forests in Poland that in optimal conditions forms pure stands with multi−layer structure. The study objective is to present differences in height and diameter growth rates of firs growing in upper stand layers and in the undergrowth. The research was conducted in 12 fir stands located in the Beskid Niski Mts. (southern Poland). In each stand height and diameter at breast height (dbh) were measured for 25 fir trees in order to develop a height curve. The first canopy layer included trees that were higher than ⅔ Hmax established from the height curve of the tree with the largest dbh. Height and diameter were measured on eight trees selected from the first canopy layer. An increment core was extracted at breast height in order to estimate the tree age. From the third canopy layer, which included trees higher than 2 m with dbh below 7 cm, five trees were selected. After cutting those trees, the length of the last ten branch whorls was measured. Five−year ring width measurements starting from the bark towards the pith were done at the stem cross−sections obtained at breast height. The number of rings was counted on remaining stumps. Height growth rate was defined as the height at the base age of 100 years (eq. 1). For the first canopy layer, the height growth rate was on average 31.8 m, while for the undergrowth it was 12.1 m. There was also large difference between diameter growth rate of the first stand canopy layer (55.7 cm) and undergrowth (18.3 cm). Both differences were significant at p=0.05. These discrepancies could result from low amount of light reaching the forest floor. The correlation between height and diameter growth rates and undergrowth tree age was negative in both cases. Long periods of shading result in smaller number of firs reaching the first canopy layer. Assuming that uneven−aged stand structure is optimal for that species, it should be characterized by a spatial variability (mosaic) of various canopy layers including even−aged patches with sparse canopy closure as well as gaps where fir regeneration will be initiated having favorable growth conditions.
Źródło:
Sylwan; 2015, 159, 10; 804-812
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 67

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