Autor: Jaworski, A - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Zmiany tendencji wzrostowych głównych lasotwórczych gatunków drzew w Europie i obszarach górskich Polski oraz ich przyczyny. Część I. Zmiany tendencji wzrostowych
Growth trends of the European main forest tree species and potential causes. Part I. Changes in growth trends
Autorzy:: Jaworski, A.
Powiązania:: https://bibliotekanauki.pl/articles/1026478.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: gatunki lasotworcze
Polska
Quercus
lesnictwo
Picea abies
Europa
Pinus sylvestris
wzrost roslin
buk zwyczajny
Abies alba
sosna zwyczajna
dab
jodla
Fagus sylvatica
przyrost drzew
drzewa lesne
swierk pospolity
increment
volume
european beech
scots pine
norway spruce
silver fir
sessile oak
Opis:: The paper provides information concerning the growth of pine, spruce, oak, beech and fir stands based on the research conducted by the European Forest Institute in a number of the European countries and in Poland. Noteworthy i.a. is the increase in volume increment of spruce and pine in some stands in Germany up to 250% of the values given in the yield tables. Since the early fifties of the past century beech and sessile oak in Bavaria have exhibited an increase in the height growth and volume increment. Their values markedly exceed those provided in the tables. Fir, similar to spruce, pine and beech shows the reduction in the increment and dieback in the regions under heavy industrial pollution. However in other regions under the impact of air pollution the response of pure and multispecies stands with the share of fir was positive. In Poland, a rapid decline in the dbh increment in three tree species (fir, spruce, pine) in the seventies was greater than in the sixties. In 1981−1989, fir showed a favourable growth in diameter; this positive tendency was noticed in the whole range of fir distribution in Poland, though the increment did not return to the level before its decline. The pine increment regenerated after 1990. The poorest increment was found in spruce in the eighties following its collapse in the seventies (Żywiecki and Śląski Beskid).
Źródło:: Sylwan; 2003, 147, 06; 99-106
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Zmiany tendencji wzrostowych głównych lasotwórczych gatunków drzew w Europie i obszarach górskich Polski oraz ich przyczyny Część II. Przypuszczalne przyczyny zmian tendencji wzrostowych
Changes in growth trends of the main forest tree species in Europe and mountain regions in Poland and possible causes Part II. Possible causes of changes in growth trends
Autorzy:: Jaworski, A.
Powiązania:: https://bibliotekanauki.pl/articles/972811.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: czynniki srodowiska
gatunki lasotworcze
Polska
Quercus
lesnictwo
Picea abies
zanieczyszczenia powietrza
Europa
Pinus sylvestris
czynniki klimatyczne
wzrost roslin
buk zwyczajny
Abies alba
sosna zwyczajna
dab
jodla
Fagus sylvatica
przyrost drzew
drzewa lesne
swierk pospolity
increment
silvicultural management methods
climate warming
so2 deposition
Opis:: The causes of changes in the growth of European single− and multi−species stands that have been recently reported are seen in the changes in land use including forests, the effect of silvicultural management meth−ods including the use of fertilisers and liming, natural disturbances, damage caused by game, changes of cli−matic conditions particularly the impact of the global climate warming, as well as air−borne deposition.
Źródło:: Sylwan; 2003, 147, 07; 69-74
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

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

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Tytuł:: Ubytek, dorost i przyrost drzewostanów o charakterze pierwotnym na wybranych powierzchniach w Pienińskim Parku Narodowym
Volume loss, recruitment as well as increment in stands of primeval character on selected sites in the Pieniny National Park
Autorzy:: Jaworski, A.
Jakubowska, D.
Powiązania:: https://bibliotekanauki.pl/articles/994523.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: parki narodowe
Pieninski Park Narodowy
lasy o charakterze pierwotnym
zespol Carici-Fagetum
fazy rozwojowe
jodla pospolita
Abies alba
buk zwyczajny
Fagus sylvatica
proces dorastania
proces ubywania
proces przyrastania
miazszosc drzewostanow
przyrost miazszosci
abies alba
fagus sylvatica
fir decline
development stage
development phase
Opis:: In the study period 1997−2007, the current volume increment in three fir−beech stands in the maturing stage equalled to 6.4−7.3 m³/ha/year, and in fir stands in the optimum phase it was 13.8 m³/ha/year. The loss of volume was high and showed wide variation among the study sites from 3.1 to 12.6 m³/ha/year. A larger number of fir recruits in this period compared to beech recruitment and the increased fir volume increment rate over the previous 10 years on Walusiówka and Ociemne study sites suggests that the decrease in the proportion of fir noted from the beginning of the research in the Pieniny Mountains (1974) was halted, or might even start change into the increase over time.
Źródło:: Sylwan; 2012, 156, 03; 182-191
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Dynamika zmian budowy, struktury i składu gatunkowego drzewostanów o charakterze pierwotnym na wybranych powierzchniach w Pienińskim Parku Narodowym
The dynamics of changes in the structure and species composition of primary forest stands in selected areas of Pieniny National Park
Autorzy:: Jaworski, A.
Jakubowska, D.
Powiązania:: https://bibliotekanauki.pl/articles/46122.pdf
Data publikacji:: 2011
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: lesnictwo
parki narodowe
Pieninski Park Narodowy
drzewostany pierwotne
budowa drzewostanu
struktura drzewostanu
sklad gatunkowy
zmiany skladu gatunkowego
zmiany zasobnosci
zmiany struktury drzewostanu
zmiany struktury piersnic
buk zwyczajny
Fagus sylvatica
jodla pospolita
Abies alba
klon jawor
Acer pseudoplatanus
lipa drobnolistna
Tilia cordata
wiaz gorski
Ulmus glabra
swierk pospolity
Picea abies
Źródło:: Leśne Prace Badawcze; 2011, 72, 4
1732-9442
2082-8926
Pojawia się w:: Leśne Prace Badawcze
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Zmiany udziału buka, jodły i świerka w dolnoreglowych drzewostanach naturalnych w rezerwacie "Dolina Łopusznej" (Gorczański Park Narodowy)
Changes in the proportion of beech, fir and spruce in the natural stands of the lower-montane zone in the 'Łopuszna Valley' Reserve (Gorczanski National Park)
Autorzy:: Jaworski, A.
Pach, M.
Powiązania:: https://bibliotekanauki.pl/articles/991817.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
Gorczanski Park Narodowy
regiel dolny
rezerwaty przyrody
rezerwat Dolina Lopusznej
drzewostany naturalne
sklad gatunkowy
zmiany skladu gatunkowego
buk zwyczajny
Fagus sylvatica
jodla pospolita
Abies alba
swierk pospolity
Picea abies
liczba drzew
zasobnosc drzewostanu
klasy grubosci
number of trees
stand volume
species composition
mortality
regeneration
Opis:: In the natural stands of the lower−montane zone in the 'Łopuszna Valley' Reserve (Gorczański National Park) consisting of beech, fir and spruce, a specific phenomenon was observed, which in other natural forests of the Western Carpathians occurred only occasionally. In the years 1981−2011, along with the increase in the proportion of beech in stands and in regeneration, which is now common issue in the forests of Central Europe, an increase or stability in the proportion of fir in stands and an increase in the proportion of fir in the undergrowth was reported. At the same time, the number of spruces in stands clearly decreased, while in the regeneration they occurred sporadically. Reduction in the proportion of spruce leads to a change in the species composition of multi−species stands i.e. from stands with co−dominant beech, fir and spruce to stands with dominant beech or co−dominant beech and fir. In managed forests, it is necessary to maintain the prevalence of all tree species for their productivity, which requires the application of the best silvicultural practices (regeneration and tending).
Źródło:: Sylwan; 2013, 157, 03; 213-222
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki