Temat: grab - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Wzory do okreslania miazszosci grubizny dla modrzewia, osiki, grabu, topoli i lipy
Autorzy:: Wroblewski, L.
Zasada, M.
Powiązania:: https://bibliotekanauki.pl/articles/822757.pdf
Data publikacji:: 2001
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: Carpinus
dendrometria
topola osika
lesnictwo
Larix
lipa
Populus tremula
miazszosc drzew
wzory empiryczne
Tilia
topola
modrzew
Populus
grab
drzewa lesne
Źródło:: Sylwan; 2001, 145, 11; 71-79
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Wpływ konkurencji na przyrost grubości drzew w wyżynnych lasach mieszanych o złożonej budowie
Effect of competition on the diameter growth of trees in mixed upland forests with complex structure
Autorzy:: Śmigielski, A.
Socha, J.
Maciejewski, Z.
Pach, M.
Powiązania:: https://bibliotekanauki.pl/articles/989022.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
Roztoczanski Park Narodowy
drzewostany naturalne
drzewostany mieszane
drzewa lesne
grab
buk
jodla
przyrost drzew
przyrost grubosci
wskazniki konkurencyjnosci
competition indices
natural stands
roztocze national park
Opis:: The aim of this study was to assess the effect of competition on diameter growth of European beech (Fagus sylvatica L.), silver fir (Abies alba Mill.) and European hornbeam (Carpinus betulus L.) in forests with complex structure. For each tree we calculated set of 20 competition indexes in 4 variants for determining the scale of the competitors influence. The use of such a set of indices, allowed to describe accurately the competition between trees in the specific conditions for the particular tree species. Given species belong to the group of shade−tolerant trees. The species composition of the tree stands and their structure are the results of long−lasting natural processes, which is different than in the majority of Polish forests. The empirical material collected in the years 1993 and 2003 in four sample plots of 0.5 ha each located in natural stands of the Roztocze National Park in south−eastern Poland. The relationships between the competition and the growth were analysed using generalized additive models. This method allows to extend of the standard linear model, by taking into account non−linear function of each variable. One of the option of quantifying competition processes is the use of competition indices. The competition situation of an individual tree was described using distance−independ and distance−depend indices. Each of analysed species reacts differently on competition. Among the three analyzed species, the best competition index CI15 explained 48.3% of the variation diameter growth of European beech (tab. 2). The competition index CI3 explained only 26.1% of the variation diameter growth of European hornbeam (tab. 2). It turned out to be the worst result for the described species. The competition index CI14 explained 31.1% of the variation diameter growth of silver fir (tab. 2). Additional use of DBH in the models, increased values of the coefficient of determination, and extended the possibilities to use the developed models.
Źródło:: Sylwan; 2017, 161, 05; 365-378
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Analiza porownawcza pokroju drzew kilku wybranych gatunkow wystepujacych w Bialowieskim Parku Narodowym
Autorzy:: Giel, M.
Glapa, M.
Szewczyk, J.
Szwagrzyk, J.
Powiązania:: https://bibliotekanauki.pl/articles/820489.pdf
Data publikacji:: 2001
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: brzoza brodawkowata
pokroj
Carpinus betulus
lipa drobnolistna
analiza porownawcza
Quercus robur
lesnictwo
Puszcza Niepolomicka
Bialowieski Park Narodowy
dab szypulkowy
Pinus sylvestris
Tilia cordata
Betula pendula
sosna zwyczajna
grab
allometria
drzewa lesne
Źródło:: Sylwan; 2001, 145, 07; 31-42
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Wpływ grabu (Carpinus betulus L.) na wzrost i przeżywalność dębu (Quercus robur L.) w fazie młodnika
Effect of hornbeam (Carpinus betulus L.) on growth and survival of pedunculate oak (Quercus robur L.) during the thicket stage
Autorzy:: Andrzejczyk, T.
Brzeziecki, B.
Powiązania:: https://bibliotekanauki.pl/articles/985865.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
hodowla lasu
drzewostany mieszane
mlodniki
drzewa lesne
grab pospolity
Carpinus betulus
oddzialywanie na rosliny
dab szypulkowy
Quercus robur
wzrost roslin
przyrost wysokosci
przyrost piersnicy
artificial regeneration
carpinus
interspecific competition
mixing form
mixed−stand
quercus
silviculture
Opis:: Growth and mortality of oak (Quercus robur L.) in young mixed stands with various admixture of hornbeam (Carpinus betulus L.) in the period of 9−13 years after planting were examined. The trial stand is located in central Poland (51.827023° N, 19.922315° E). It was established in 2004 on a moderately fertile site. Four experimental variants with different participation of oak (O) and hornbeam (H) were established: W1 – an oak monoculture (control variant, 100% O), W2 – a mixed stand consisting of two rows of oak and one row of hornbeam (67% O, 33% H), W3 – a mixed stand consisting of one row of oak and one row of hornbeam (50% O, 50% H), W4 – a mixed stand characterized by a single tree mixture, with three oaks and one hornbeam alternately occurring in each row (75% O, 25% H). During the first two years of the study period the height increments of oak trees were significantly larger in the study variants with hornbeam (the biggest in W3 variant), while during the next two years, the largest values of height increments occurred in the control variant (W1). Through the second part of the study period, the most pronounced, negative effect of hornbeam on the dbh increment of oak trees took place in the W3 variant. During the first nine years after planting the survival rate of oak trees in the variants with hornbeam were similar (82−94%) as in the control variant (85%). However, during the next four years, three times more oaks died in W3 variant (16,5%) than in other variants (5−7%). In general, the results obtained suggest that in order to create mixed oak stands with hornbeam as a nursery species, the share of hornbeam should not exceed 20−25% of all planted trees. The above value appears to be acceptable from the point of view of the negative competitive effects of hornbeam on oak trees during the initial stages of stand development.
Źródło:: Sylwan; 2018, 162, 12; 989-997
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Wieloletnia dynamika starodrzewów w zagospodarowanej części Puszczy Białowieskiej: gatunki ekspansywne i ustępujące
Long-term dynamics of old-growth stands in the managed part of the Bialowieza Forest: increasing and declining tree species
Autorzy:: Drozdowski, S.
Brzeziecki, B.
Żybura, H.
Żybura, B.
Gawron, L.
Buraczyk, W.
Zajączkowski, J.
Bolibok, L.
Szeligowski, H.
Bielak, K.
Widawska, Z.
Powiązania:: https://bibliotekanauki.pl/articles/1008501.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
Puszcza Bialowieska
starodrzew
dynamika drzewostanu
drzewa lesne
swierk
grab
jesion
olsza
dab
lipa
brzoza
klon
sosna
wiaz
zageszczenie drzew
piersnicowe pole przekroju
piersnice drzew
gatunki ekspansywne
gatunki ustepujace
stale powierzchnie obserwacyjne
badania dlugoterminowe
old−growth forest
permanent plot
long−term trend
population density
population dynamics
tree species
Opis:: In the paper, an assessment of tree population dynamics in the old−growth stands of the managed part of the Białowieża Forest is presented. Data from five permanent sample plots with a total size of 9.3 ha and six inventories that cover the period 1949−2006, were used. Depending on the dynamic status, determined on the basis of changes in a number of individuals per hectare, basal area and quadratic mean diameter, three major groups of tree species were distinguished: 1) an increasing group, containing only hornbeam and lime; 2) a stable group, involving alder and spruce and 3) a declining group consisting of oak, ash, maple, pine, birch, elm and aspen.
Źródło:: Sylwan; 2012, 156, 09; 663-671
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: Inwentaryzacja drzew starych i drzew gatunkow ginacych w Puszczy Bialowieskiej
The stock-taking of old trees and threatened tree species in the Bialowieza Primeval Forest
Autorzy:: Korczyk, A.F.
Powiązania:: https://bibliotekanauki.pl/articles/45823.pdf
Data publikacji:: 2008
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: Carpinus betulus
lipa drobnolistna
lesnictwo
dab szypulkowy
gatunki ginace
Pinus sylvestris
jodla pospolita
grab pospolity
Ulmus glabra
Abies alba
sosna zwyczajna
drzewa lesne
wiaz gorski
zasoby genowe
Quercus petraea
Quercus robur
jesion wyniosly
Picea abies
drzewa stare
klon pospolity
Tilia cordata
dab bezszypulkowy
Fraxinus excelsior
inwentaryzacja lasu
Puszcza Bialowieska
Acer platanoides
swierk pospolity
Źródło:: Leśne Prace Badawcze; 2008, 69, 2; 117-126
1732-9442
2082-8926
Pojawia się w:: Leśne Prace Badawcze
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Zagrożone gatunki drzew Białowieskiego Parku Narodowego (Rezerwat Ścisły)
Threatened tree species of the Bialowieza National Park (the Strict Reserve)
Autorzy:: Brzeziecki, B.
Keczyński, A.
Zajączkowski, J.
Drozdowski, S.
Gawron, L.
Buraczyk, W.
Bielak, K.
Szeligowski, H.
Dzwonkowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1007075.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
hodowla lasu
Bialowieski Park Narodowy
rezerwaty scisle
Obreb Ochronny Orlowka
stale powierzchnie obserwacyjne
sklad gatunkowy
drzewa lesne
grab
lipa
swierk
olsza
brzoza
dab
sosna
jesion
klon
wiaz
topola osika
zageszczenie populacji
liczebnosc
struktura grubosci
gatunki dominujace
gatunki zagrozone
diameter distribution
dynamic status
large−scale inventory
long−term trend
natural forest
permanent plot
population density
population dynamics
strict protection
Opis:: An assessment of the current dynamic status of tree species occurring in the Strict Reserve of the Białowieża National Park is presented. On the basis of long−term trends and analysis of large−scale inventory data, the three major groups of trees are distinguished: 1) ‘safe’ group, containing hornbeam and lime, 2) ‘presently safe, but declining in a long−term run’ group, involving spruce, birch and alder, and 3) ‘threatened and highly threatened’ group, consisting of oak, pine, ash, maple, elm and aspen.
Źródło:: Sylwan; 2012, 156, 04; 252-261
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Odnowienie naturalne drzew w Puszczy Białowieskiej
Natural regeneration of trees in the Bialowieza Forest
Autorzy:: Brzeziecki, B.
Andrzejczyk, T.
Żybura, H.
Powiązania:: https://bibliotekanauki.pl/articles/985949.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
Puszcza Bialowieska
odnowienia naturalne
drzewa lesne
topola osika
Populus tremula
brzoza brodawkowata
Betula pendula
brzoza omszona
Betula pubescens
olsza czarna
Alnus glutinosa
sosna zwyczajna
Pinus sylvestris
dab szypulkowy
Quercus robur
jesion wyniosly
Fraxinus excelsior
klon pospolity
Acer platanoides
wiaz gorski
Ulmus glabra
swierk pospolity
Picea abies
lipa drobnolistna
Tilia cordata
grab pospolity
proces dorastania
ekosystemy lesne
dynamika lasu
active approach
deer browsing
long−term study
multifunctional forest management
natural recruitment
nature conservation
silvicultural treatment
strict protection
tree competition
tree diversity
Opis:: Since several years already, a massive infestation of bark beetle has taken place in the Białowieża Forest, decimating a local Norway spruce population. In consequence, many open areas appeared, practically deprived of trees and other forest vegetation. The existence of such areas has a very negative impact on multiple values of the Białowieża Forest: natural, social, economical and landscape−aesthetic values. The local forest administration prepared a strategy aimed at active restoration of diverse woodland communities typical for the Białowieża Forest in all places, where bark beetle infestation wiped up the spruce stands. Those plans were criticized by representatives of the environmental organizations who blamed the foresters for transforming the Białowieża Forest into ‘plantation’ and claiming that such measures are inconsistent with the existing forest management and protection plan. The postulate of environmentalists is that the recovery of woodland communities should proceed completely naturally. Taking into account the above mentioned controversies, in this paper we examine the issue of natural regeneration in the Białowieża Forest in detail. In particular, we try to determine to which extent this method of forest reproduction enables re−establishment of compositionally diverse woodland communities, distinguished by a high level of biological diversity and able to provide a wide range of commodities and benefits important for today’s society. Based on an extensive literature review we show that a combination of different (abiotic and biotic) factors, influencing establishment and subsequent growth of seedlings and saplings in the Białowieża Forest has long been strongly unfavorable for many tree species. In this regard, one should particularly emphasize the negative role of large herbivores, especially red deer, which is present in the Białowieża Forest since the end of 19th century, when it became a private hunting ground for Russian tzars. The devastating effect of deer browsing on natural regeneration is a well−documented phenomenon and widely recognized problem in the forestry practice. The fencing of young forest generation against game pressure is an indispensable measure, needed to secure the continuous existence of several tree species (first of all those palatable and vulnerable to browsing). Very strong arguments for an active approach to the described problem delivers also a long−term study on natural forest dynamics conducted since 1936. It shows that under conditions of strict protection the regeneration capacity of the Białowieża tree species is very variable. These differences lead to the compositional simplification and impoverishment of many tree stands, with numerous negative consequences for local biodiversity. We underline that an active management strategy is a basic prerequisite for maintaining a diverse character of the Białowieża stands and their ability to provide all important ecosystem services on a sustainable basis. Such a strategy should include, beside of the phase of establishment, also the subsequent developmental stages of new forest generations. The general goal of such a strategy should be to secure a possibly high diversity of tree composition and to enable the development of tree species representing a full range of life−history strategies and playing different successional roles: from typical pioneer species, through intermediate, to climax species.
Źródło:: Sylwan; 2018, 162, 11; 883-896
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki