Temat: GAPS - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Regulacja warunków wzrostu odnowień na gniazdach - wpływ parametrów gniazd na oddziaływanie czynników biotycznych
Regulation of regeneration growth conditions in small clear cuts - the effect of gap parameters on biotic factors influence
Autorzy:: Bolibok, L.
Powiązania:: https://bibliotekanauki.pl/articles/1009593.pdf
Data publikacji:: 2009
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: czynniki biotyczne
odnowienia lasu
rosliny konkurencyjne
luki korzeniowe
lasy
lesnictwo
rebnie gniazdowe
dostepnosc skladnikow pokarmowych
small clear cut
patch selective cutting
gaps
root gaps
weeds
optimization
Opis:: Optimisation of patch selective cutting, especially the interaction between size and shape of artificial gaps and biotic factors influencing tree regeneration, is rather sparsely documented in Polish silvicultural textbooks. The removal of trees can increase availability of nutrients in artificial gaps. Establishment of root gaps and vigorous development of vegetative cover (weeds) is another consequence. This paper presents review of investigations that describe interactions between mentioned factors influencing regeneration growth and parameters of gaps. The special attention is paid to potential application of cited results in practical silviculture.
Źródło:: Sylwan; 2009, 153, 11; 733-744
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Wpływ wielkości luki na wzrost i rozwój jodły pospolitej (Abies alba Mill.) w drzewostanach mieszanych w rezerwacie Jata
The effect of canopy gaps on growth and development of silver fir [Abies alba Mill.] regeneration in mixed stands in the Jata reserve
Autorzy:: Dobrowolska, D.
Powiązania:: https://bibliotekanauki.pl/articles/973193.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: rezerwat Jata
Abies alba
rezerwaty przyrody
odnowienia naturalne
odnowienia podokapowe
jodła pospolita
wzrost roślin
żywotność
leśnictwo
drzewa leśne
silver fir
canopy gaps
vitality
crown length
Opis:: The study was carried out in mixed stands in Jata reserve. All gaps over than 20 m2 were localized. The aim of the study was to describe the structure and vitality of silver fir regeneration in gaps and under stand canopy. Following hypothesis was tested: better condition for fir growth is in small gaps, in bigger gaps fir is decreased by the development of deciduous tree species. It was found that gap size did not influence on the quantity of fir regeneration. The hypothesis was rejected. In mixed stands of the Jata reserve fir was not the dominant tree species not only in gaps but also under the stand canopy. The vitality of fir trees has been improved in last years, what suggests the increment in tree crowns lenght.
Źródło:: Sylwan; 2007, 151, 03; 29-35
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Rola luk w odnawianiu drzewostanów mieszanych w rezerwacie Jata
Role of gaps in regeneration of mixed stands in the Jata reserve
Autorzy:: Dobrowolska, D.
Powiązania:: https://bibliotekanauki.pl/articles/1015995.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: rozwoj roslin
wzrost roslin
sklad gatunkowy
rezerwat Jata
rezerwaty przyrody
lesnictwo
drzewostany mieszane
odnowienia naturalne
struktura drzewostanu
odnowienia podokapowe
drzewa lesne
canopy gaps
natural regeneration
silver fir
disturbances
Opis:: The study was conducted in the Jata reserve (total area is 1117 ha), which is the furthest natural silver fir (Abies alba Mill.) location in north−eastern Europe. The aim of the investigation was to: (i) determine influence of stand structure and species composition on regeneration, (ii) reveal the role of canopy gaps in the forest development, (iii) recognize how the gap size determines the establishment, growth and development of tree species in the mixed stands. The investigation was carried out in chosen mixed stands with the share of fir (≤50%). All gaps defined as openings in the canopy ≥20 m2 in area that intersected the transect were localized. Natural regeneration was measured in gaps. Gaps initiated the processes of regeneration in mixed stands. It was found that gaps increased biodiversity in mixed stands – the regeneration of shrubs was possible only in gaps. Gap size did not influence the quantity of tree species regeneration. On the quantity of fir, spruce, hornbeam, sycamore and aspen influence the number of tree species in gap surrounding. Better conditions for regeneration of tree species were under the fresh mixed broadleaved site type (LMśw). The dominant tree species regenerated in gaps were hornbeam and sycamore.
Źródło:: Sylwan; 2007, 151, 04; 14-25
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Zmiany w dwóch zespołach buczyn pomorskich w rezerwacie Kołowskie Parowy (Puszcza Bukowa) w latach 1985-2006
Changes in two Pomeranian beech forest communities in the Kolowskie Parowy nature reserve (Bukowa Forest) between 1985 and 2006
Autorzy:: Puchałka, R.
Powiązania:: https://bibliotekanauki.pl/articles/990979.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
Puszcza Bukowa
drzewostany bukowe
rezerwat Kolowskie Parowy
zbiorowiska lesne
zespol Luzulo pilosae-Fagetum
zespol Galio odorati-Fagetum
flora
rosliny naczyniowe
roznorodnosc gatunkowa
zmiany florystyczne
beech
nature protection
forest management
biodiversity
gaps
Opis:: The paper presents the analysis of changes in two beech forest communities in the Kołowskie Parowy nature reserve (NW Poland). Within 21 years the frequency and cover of most species significantly decreased, including typical taxa for shady deciduous forests. Analysis of ecological indicator values showed that species richness is strongly correlated with light availability. The results suggest that passive protection promoted in Puszcza Bukowa forest brings negative effects for vascular plants biodiversity.
Źródło:: Sylwan; 2014, 158, 09; 695-703
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Liczebność odnowienia naturalnego w lukach w drzewostanach jodłowo-bukowych w Świętokrzyskim Parku Narodowym
Number of natural regeneration of gaps in fir-beech stands in the Swietokrzyski National Park
Autorzy:: Wrzesiński, P.
Dobrowolska, D.
Krajewski, S.
Zajączkowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/989083.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
Swietokrzyski Park Narodowy
drzewostany jodlowo-bukowe
luki drzewostanowe
wielkosc luki
odnowienia naturalne
podrost
sklad gatunkowy
jodla pospolita
Abies alba
buk zwyczajny
Fagus sylvatica
wzrost roslin
gap dynamics
canopy gaps
disturbance
shade tolerance
competition
Opis:: Forest gaps, openings in the canopy caused by death of one or more trees, are the dominant form of natural disturbance in the temperate forests. Gaps play a critical role in driving stand dynamics and influencing forest growth cycle. They increase habitat diversity, structural complexity, fauna and flora species diversity. The size of a gap may strongly influence tree species regeneration composition, vegetation growth, nutrient cycling, microclimate and may have considerable effect on a number of biological processes. The main aim of this study was to understand the effects of gap size diversity on species composition and number of natural regeneration. The study was carried out in near−natural mixed stands dominated by beech (Fagus sylvatica L.) and silver fir (Abies alba Mill.) representing different development stages and phases in the Świętokrzyski National Park, (central Poland). All gaps over than 20 m 2 intersected by a transects line were sampled. All saplings and seedlings were counted in circular plots (10 m²) evenly spaced along the long axis in the N−S and E−W gradients of each gap. Natural regeneration was analyzed for 62 canopy gaps of various sizes. The gaps were classified into three size classes: small ≤100 m², medium 101−250 m² and large >250 m². The gap size ranged from 21 to 397 m², with a median of 104 m². The dominant tree species regenerated in gaps were fir (69%) and beech (24%). The number of regeneration significantly depended on the gap size (p=0.027). The highest frequency of saplings was found in gaps of ≤100 m². The number of natural regeneration was significantly negatively correlated with gap size (r=–0.261, p=0.040). The density of silver fir regeneration was significantly higher in gaps of ≤100 m² and 101−250 m² (p<0.05). The share of fir in stand species composition effected on the number of silver fir and European beech regeneration. The results of this study demonstrated the utility of gap−based approach for better understanding ecosystem responses to tree cutting for modern forest management.
Źródło:: Sylwan; 2017, 161, 06; 485-495
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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