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Wyświetlanie 1-5 z 5
Tytuł:
Przestrzenna i czasowa zmiennosc procesow rozwoju roznowiekowych lasow jodlowych w Lesnym Zakladzie Doswiadczalnym w Krynicy
Autorzy:
Banas, J.
Zieba, S.
Powiązania:
https://bibliotekanauki.pl/articles/819974.pdf
Data publikacji:
2002
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zmiennosc czasowa
drzewostany roznowiekowe
zmiennosc przestrzenna
proces odnawiania
proces dorastania
proces ubywania
proces przyrastania
lesnictwo
LZD Krynica
drzewostany jodlowe
Źródło:
Sylwan; 2002, 146, 11; 89-101
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Budowa, struktura i dynamika górnoreglowych borów świerkowych o charakterze pierwotnym w dolinach Pańszczycy i Stawów Gąsienicowych (Tatrzański Park Narodowy) w okresie kontrolnym 1991 - 2002
The structure, composition and dynamics of subalpine primeval spruce forests in the Panszczyca Valley and the Stawy Gasienicowe Valley [in the Tatra National Park] during the control period 1991-2002
Autorzy:
Karczmarski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1016108.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
dynamika drzewostanu
sklad gatunkowy
Tatrzanski Park Narodowy
drzewostany swierkowe
Dolina Panszczycy
lesnictwo
proces dorastania
struktura drzewostanu
zasobnosc drzewostanu
budowa drzewostanu
Dolina Gasienicowa
regiel gorny
proces ubywania
przyrost drzewostanu
stand structure
stand dynamics
natural development cycle
primeval forest
spruce
subalpine zone
poland
Opis:
The research presents changes (in the period of 1991−2002) in species composition, volume, dbh structure, height and storey structure, increment value, self−thinning rate and regeneration dynamics of the primeval−type spruce forests of the upper montane zone in the Pańszczyca Valley and the Stawy Gąsiennicowe Valley in the Tatra National Park on the example of three permanent experimental plots. The stands under study (as compared with other stands in the Polish Carpathians from the similar altitudinal zone, feature high productivity expressed by the current annual volume increment value of 4.1−4.5 cu.m./ha, diverse structure and composition depending on the represented stages and phases of stand development, as well as high stand stability.
Źródło:
Sylwan; 2007, 151, 11; 41-59
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Budowa, struktura i dynamika naturalnych górnoreglowych borów świerkowych w dolinie Rybiego Potoku (Tatrzański Park Narodowy) w okresie kontrolnym 1990-2001
Structure and dynamics of natural spruce stands in the upper montane zone in the Rybi Potok Valley [the Tatra National Park] in the years 1990-2001
Autorzy:
Karczmarski, J.
Zygarowicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/1015898.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
dynamika drzewostanu
sklad gatunkowy
Tatrzanski Park Narodowy
drzewostany swierkowe
lesnictwo
proces dorastania
struktura drzewostanu
zasobnosc drzewostanu
Dolina Rybiego Potoku
budowa drzewostanu
regiel gorny
proces ubywania
drzewostany naturalne
przyrost drzewostanu
stand structure
stand dynamics
development stage
primeval forests
spruce
Opis:
The paper presents changes (in 1990−2001) in species composition, growing stock, dbh structure, height and storey structure, increment, density of dead trees and regeneration of primeval spruce forests situated in the Rybi Potok Valley in the Tatra National Park on the example of two permanent study sites. The stands discussed in the paper (in comparison with other stands at a similar altitudinal zone in the Polish Carpathians) feature high productivity expressed in annual volume increment amounting to 5.3−5.6 m3/ha and high stability.
Źródło:
Sylwan; 2007, 151, 12; 3-20
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
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
Artykuł
    Wyświetlanie 1-5 z 5

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