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Tytuł:
Decyzje urządzania lasu w kształtowaniu różnorodności
Decision - making in forest management planning for shaping biological
Autorzy:
Poznański, R.
Powiązania:
https://bibliotekanauki.pl/articles/1022896.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
podejmowanie decyzji
lasy
roznorodnosc biologiczna
lesnictwo
ksztaltowanie roznorodnosci
urzadzanie lasu
biological diversity
forest categorisation
regeneration
survival and disappearance processes
decision−making
Opis:
In forest management planning the enhancement of forest biological diversity at the genetic, species, ecosystem and landscape levels occurs through making general and specific decisions. The major general decisions concern forest categorisation, division of a forest into management units, choice of a management system and setting silvicultural−management objectives. Specific decisions concern three processes of forests development affecting forest sustainability, i.e. regeneration, survival and disappearance of trees and stands.
Źródło:
Sylwan; 2005, 149, 01; 3-7
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ przygotowania gleby po pożarze lasu na przeżywalność i wzrost wybranych gatunków drzew
The influence of the soil preparation after the forest fire on the survival and growth of the selected tree species
Autorzy:
Ceitel, J.
Barzdajn, W.
Zientarski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1026442.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
wzrost roslin
przezywalnosc
odnowienia lasu
tereny popozarowe
przygotowanie gleby
pozary lasow
lesnictwo
drzewa lesne
forest fire
artificial regeneration
soil preparation
survival
growth
Opis:
This paper refers to the investigation of the influence of the soil preparation methods and selection of the forest tree species for the forest regeneration on the surface after the forest fire and in case of the poor coniferous forest site types. Results come from the experiment established in 1994 in Notecka Forest according to the split−plots method. Five soil preparation methods were tested (furrows, furrows with subsoiler, subsoiler, full shallow ploughing and control) and six forest tree species (Scots pine, European larch, gray alder, silver birch, pedunculate oak, red oak). On the base of the analysis of variance the height growth and survival of the tested species during 6 year period were evaluated.
Źródło:
Sylwan; 2003, 147, 06; 3-13
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Uszkodzenia nasion buka w koronach drzew Część II. Uszkodzenia bukwi powodowane przez kręgowce
Predispersal beech seed predation Part II. Predation of beech seeds by vertebrates
Autorzy:
Skrzydłowski, T.
Piotrowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1026676.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
kregowce
buk zwyczajny
szkodniki nasion
nasiona
korony drzew
lesnictwo
uszkodzenia nasion
Fagus sylvatica
drzewa lesne
predispersal seed predation
vertebrates
fagus sylvatica
seed survival
Opis:
The paper provides a comparative analysis of damage caused by vertebrates to beech seeds in the Babia Góra and Ojców National Parks. The assessment of damage of beech seeds by vertebrates is the part of the broader research concerning the predispersal seed predation in tree crowns.
Źródło:
Sylwan; 2003, 147, 05; 86-92
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ przygotowania gleby na wzrost sosny zwyczajnej w pierwszych latach uprawy
The effect of different methods of soil preparation on the growth of Scots pine during first years after planting
Autorzy:
Andrzejczyk, T.
Augustyniak, G.
Powiązania:
https://bibliotekanauki.pl/articles/1015759.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
wzrost roslin
hodowla lasu
sosna zwyczajna
przygotowanie gleby
lesnictwo
udatnosc uprawy
Pinus sylvestris
drzewa lesne
uprawy lesne
soil preparation
scots pine
growth
survival
Opis:
The paper provides a comparison of growth and survival of Scots pines during first four years after planting in response to two methods of soil preparation using a double mouldboard plough (a conventional method) and by rotary type disc plough. The studies were carried out in the poor fresh coniferous forest habitat. The discussed soil preparation methods had a significant impact on tree height and diameter, however they did not affect pine survival. Pine growing in furrows made by the disc plough exhibited better height growth; the furrows were shallower than those made by the double mouldboard plough. After four years, the height growth of pines in both experimental variants reached the same level which indicates a short−term effect of soil preparation on pine growth.
Źródło:
Sylwan; 2007, 151, 08; 3-8
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wzrost i przeżywalność jodły pospolitej (Abies alba Mill.) w zależności od gatunku osłaniającego na terenie Karkonoskiego Parku Narodowego
Influence of stand canopy on growth and survival of silver fir (Abies alba Mill.) in the Karkonoski National Park
Autorzy:
Dobrowolska, D.
Powiązania:
https://bibliotekanauki.pl/articles/991860.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
odnowienia podokapowe
drzewostany przebudowywane
sklad gatunkowy
Karkonoski Park Narodowy
drzewa lesne
jodla pospolita
Abies alba
wzrost roslin
przezywalnosc
conversion
artificial regeneration
browsing
height increment
survival
Opis:
Article presents the assessment of growth and survival of silver fir seedlings planted under stand canopies constituted by common beech, European larch, Norway spruce, Scots pine and silver birch. Measurements were carried out in Karkonoski National Park (SW Poland) in 2001 and 2011. The tallest trees were growing under the canopy of larch both in 2001 and 2011.
Źródło:
Sylwan; 2013, 157, 03; 197-203
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena zmienności cech adaptacyjnych pięcioletniej jodły pospolitej pochodzeń objętych ochroną na powierzchniach zachowawczych Karpackiego Banku Genów
Evaluation of the variability of adaptive traits in 5-year-old silver fir progenies from provenances protected on conservation plots in the Carpathian Gene Bank
Autorzy:
Kempf, M.
Sabor, J.
Powiązania:
https://bibliotekanauki.pl/articles/1009677.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
jodla pospolita
wzrost roslin
przezywalnosc
zmiennosc cech
Karpacki Bank Genow
Abies alba
cechy adaptacyjne
lesnictwo
drzewa lesne
carpathian gene bank
progeny testing
silver fir
adaptive traits
survival
height growth
Opis:
The paper presents the assessment of the adaptive traits (survival rate and height growth) of 5−year−old silver fir one year after planting on conservation plots of the Carpathian Gene Bank (KGB) located in the territory of Wisła, Andrychów, Sucha, Nowy Targ, Krościenko, Nawojowa, Rymanów oraz Bircza forest districts. The conducted studies showed a high (over 90%) survival rate of the tested fir provenances. The growth of the West Carpathian (Beskid Śląski, Beskid Żywiecki, and Beskid Mały) fir provenances was high on the majority of the KGB conservation plots, while the height growth of fir stands from the central part of the Carpathian Mountains (Beskid Wyspowy, Beskid Sądecki, and Beskid Niski) was on an average level. The East Carpathian (Pogórze, Słonne and Bieszczady Mountains) provenances were significantly diversified in terms of the height and did not form a homogenous group.
Źródło:
Sylwan; 2009, 153, 10; 651-661
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pokrywa śnieżna jako czynnik wpływający na przeżywalność i kiełkowanie bukwi
The effect of snow cover on the survival and germination of beech seeds
Autorzy:
Piotrowski, M.
Skrzydłowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/1015913.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
przezywalnosc
buk zwyczajny
nasiona
wyzyny
Babiogorski Park Narodowy
lesnictwo
regiel dolny
Ojcowski Park Narodowy
pokrywa sniezna
Fagus sylvatica
zdolnosc kielkowania
drzewa lesne
fagus sylvatica
seed survival
beech seeds
snow
Opis:
The effect of the snow cover on the survival of beech seeds from the time seeds fell onto the ground until the appearance of seedlings was investigated during two seasons at the study sites in the Babiogórski National Park and in the Ojcowski National Park. The obtained results show that snow cover has influence on the shaping of a spatial pattern of seed survival, and on the appearance of germinated seedlings. However, no decisive influence of snow cover was shown on the appearance of seedlings. The drying of the germinated seeds is the main cause of their mortality.
Źródło:
Sylwan; 2007, 151, 02; 59-68
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wiek rębności w lesie normalnym oraz lesie celowym
Rotation age in normal and target forests
Autorzy:
Klocek, A.
Piekutin, J.
Powiązania:
https://bibliotekanauki.pl/articles/973332.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
model lasu celowego
model lasu normalnego
drzewostany
proces ubywania
proces przezywania
leśnictwo
wiek rębności
deterministic model of normal forest
probabilistic model of target forest
survival and mortality processes
Opis:
The paper focuses on the deterministic model of normal forest, the probabilistic model of target forest and the processes related to the survival and mortality of forest stands suitable for these models. They are the basis for the assumptions, presented in this paper, of two different methods of regulating rotation age adequate for normal forest and target forest. Optimizing the rotation age of a stand is essential for the regulation of forest production. It aims to establish such an age−dependent state of stand, which is the most desirable from the point of view of the adopted forest management objectives. Because of the long−term cycle of stand development, optimizing the age at which a stand is considered mature for felling usually means maximizing the average annual increase in stand volume. Under the conditions of normal forest, the concept formulated in the first half of the nineteenth century, the above optimization criterion has the form of the equation [2]. The current annual increase of timber production (Pb (tu)) at the optimal rotationage (tu) is equal to the average annual increment (Pp(tu)). At this age, the intensity (rate) of thecurrent growth of the production function (Pb(tu)/P(tu)) becomes equal to the fractionof the stand area (1/tu). These relationships are illustrated in figure 3. The model of target forest is derived from the random nature of two opposing processes described as 'survival' and 'mortality' of forests. This is reflected in the transition probability matrix where a forest stand moves from the younger age class to the older or to the youngest age class. The probability function (U(t)) of stand survival in individual management periods (t) developed on the basis of these data, is one of the main parameters of the optimization equation for the rotation age of target forest [11]. Formula [13] indicates that the optimal rotation age (t=tu) is when the rate of growth in the volume of merchantable timber (Pb(t)/P(t)) and the negative growth rate (decline) for a part or the entirestand (Ub(t)/U(t)) are equal to a fraction of the stand area. These interactions are illustrated infigure 8, which additionally presents the effect of the decline in the survival rate on the optimal rotation age (tu). This age may be analyzed separately for natural disasters and for clear−cuttingof stands in accordance with the forest management plan. These two categories of effects mayalso be dealt with jointly.
Źródło:
Sylwan; 2015, 159, 12; 971-988
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wzrost i przeżywalność 8-letniego potomstwa WDN jodły pospolitej (Abies alba Mill.) w I regionie testowania
Growth and survival among the 8-year-old progeny of permanent seed stands of silver fir (Abies alba Mill.) in Testing Region I
Autorzy:
Buraczyk, W.
Szeligowski, H.
Studnicki, M.
Konecka, A.
Będkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/979457.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
jodla pospolita
Abies alba
proweniencje
drzewostany nasienne
potomstwo drzewostanow nasiennych
cechy adaptacyjne
wzrost roslin
przezywalnosc roslin
provenance
progeny testing
permanent seed stands
adaptation
survival
stability of origins
Opis:
The programme of testing the progeny of permanent seed stands, parent trees, seed orchards and seedling seed orchards that has been run in Poland enables to determine the genetic value and silvicultural quality of the progeny of components of primary forest material. A better knowledge of population variability and adaptability to particular environmental conditions also allows for the updating and verification of principles regarding the use of the seed base in testing regions, as well as the determination of possibility for forest reproductive material to be transferred. The article presents the research on assessment of survival and growth among progeny from 26 permanent seed stands of silver fir that originates from Lublin, Radom and Łódź Regional Directorates of the State Forests, at four testing grounds located in the Kielce, Suchedniów, Tomaszów and Zwierzyniec forest districts. Each research plot was founded with 4 replicates, each with 3−year−old saplings. After 5 years of growth, mean rates of survival ranged from 70.4% at the Kielce site to92.7% in Tomaszów. The lowest survival rate (30.5%) was noted for local origin (Starachowice), while the highest (93.8%) characterised the local standard from Zwierzyniec. Mean height varied from 54.1 cm in the case of the Suchedniów to 80.0 cm in the case of Tomaszów, albeit with the shortest firs originating from the Starachowice local standard and the tallest from the Tomaszów local standard. Analysis of variance components revealed that the environmental conditions (described by study area) played major role in shaping the variability. This effect was responsible for around 75% of the variance in height and 60% of that relating to survival. In contrast, origin (genetic factor) was most likely responsible for 7% of the noted variance in height or 4% of that relating to survival.
Źródło:
Sylwan; 2019, 163, 11; 936-947
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prognoza użytkowania Lasów Państwowych na okres 2011-2020
Forecast of the harvest in the State Forests for the 2011-2020 period
Autorzy:
Poznański, R.
Powiązania:
https://bibliotekanauki.pl/articles/973942.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zasoby drzewne
prognozy gospodarcze
użytkowanie przedrębne
leśnictwo
użytkowanie rębne
gospodarka leśna
Państwowe Gospodarstwo Leśne Lasy Państwowe
the state forests
stand survival and harvest probability
inductive forecast
final cut
intermediate cut
Opis:
Final and intermediate cuts volume in the State Forests are expected to range in 2011−2020 from 18.28 to 23.90 and from 13.39 to 13.58 million m3 netto annually respectively, with probability of 0.954. The final cut will account for about 60% of the principal harvest. Positive changes will occur during the forecast period in the average stand age from 3 to 4 years and in the average standing volume from 3 to 5 m3/ha.
Źródło:
Sylwan; 2011, 155, 12; 827-834
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie analizy skupień do rozróżnienia tendencji zmian roślinności na przykładzie dynamiki zbiorowisk po pożarze dolnym w zbiorowisku Peucedano-Pinetum w Kampinoskim Parku Narodowym
Application of cluster analysis to distinguish the tendencies of vegetation changes on the example of the dynamics of communities affected by surface fire in the Peucedano-Pinetum community in the Kampinoski National Park
Autorzy:
Zaniewski, P.T.
Zaniewska, E.
Matuszkiewicz, J.M.
Powiązania:
https://bibliotekanauki.pl/articles/979384.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Kampinoski Park Narodowy
zbiorowisko Peucedano-Pinetum
pozary przyziemne
dynamika zbiorowisk
regeneracja fitocenoz
metoda Warda
leśnictwo
drzewostany popożarowe
sukcesja wtórna
analiza skupień
provenance
progeny testing
permanent seed stands
adaptation
survival
stability of origins
Opis:
The programme of testing the progeny of permanent seed stands, parent trees, seed orchards and seedling seed orchards that has been run in Poland enables to determine the genetic value and silvicultural quality of the progeny of components of primary forest material. A better knowledge of population variability and adaptability to particular environmental conditions also allows for the updating and verification of principles regarding the use of the seed base in testing regions, as well as the determination of possibility for forest reproductive material to be transferred. The article presents the research on assessment of survival and growth among progeny from 26 permanent seed stands of silver fir that originates from Lublin, Radom and Łódź Regional Directorates of the State Forests, at four testing grounds located in the Kielce, Suchedniów, Tomaszów and Zwierzyniec forest districts. Each research plot was founded with 4 replicates, each with 3−year−old saplings. After 5 years of growth, mean rates of survival ranged from 70.4% at the Kielce site to 92.7% in Tomaszów. The lowest survival rate (30.5%) was noted for local origin (Starachowice), while the highest (93.8%) characterised the local standard from Zwierzyniec. Mean height varied from 54.1 cm in the case of the Suchedniów to 80.0 cm in the case of Tomaszów, albeit with the shortest firs originating from the Starachowice local standard and the tallest from the Tomaszów local standard. Analysis of variance components revealed that the environmental conditions (described by study area) played major role in shaping the variability. This effect was responsible for around 75% of the variance in height and 60% of that relating to survival. In contrast, origin (genetic factor) was most likely responsible for 7% of the noted variance in height or 4% of that relating to survival.
Źródło:
Sylwan; 2019, 163, 11; 936-947
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efektywność projektów reintrodukcji głuszca (Tetrao urogallus) w Europie
Effectiveness of capercaillie (Tetrao urogallus) reintroduction projects in Europe
Autorzy:
Merta, D.
Zawadzka, D.
Krzywiński, A.
Powiązania:
https://bibliotekanauki.pl/articles/989738.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lowiectwo
ptaki lowne
gluszec
Tetrao urogallus
hodowla zwierzat
metoda born to be free
zagrozenia zwierzat
drapiezniki
warunki siedliskowe
reintrodukcja
Europa
‘born to be free'
captive rearing
forest grouse
habitat quality
survival
predation
translocation
Opis:
The study focuses on capercaillie (Tetrao urogallus) and other Galliformes birds reintroduction projects carried out in Europe since the 1950s. In Germany alone, there have been eleven projects involving the release of a total of ca. 5,000 caprcaillies, mainly obtained from the closed breeding centres. The majority of birds died shortly after release. The high mortality was caused by great pressure from predators and the poor adaptation of the birds bred in captivity to the wild−life conditions. The high mortality among the birds from artificial breeding is associated with changed morphology (e.g. shorter digestive tract, less−developed pectoral muscles), physiology, and behaviour (insufficiently developed social and anti−predatory behavioural mechanisms). Survival rates among the birds released into the wild were primarily affected by the method of breeding and release, quality of habitat, and pressure from predators. The survival rates of translocated birds were higher than those obtained from traditional breeding in aviaries. Better results were also obtained with the 'born to be free' method of breeding and release based on social contact between the mother and chicks. The following actions are obligatory in reintroduction projects: predators reduction, evaluation and improvement in the quality of environment, as well as long−term monitoring of birds. The factors crucial for the effectiveness are: the total number of birds released, the number of released birds in subsequent years, and the overall duration of the project.
Źródło:
Sylwan; 2015, 159, 10; 863-871
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena buka zwyczajnego w uprawach z wyższych położeń Beskidu Śląskiego i Żywieckiego
Assessment of European beech in cultures located at higher altitudes of the Beskid Slaski and Zywiecki
Autorzy:
Małek, S.
Barszcz, J.
Kędziora, B.
Powiązania:
https://bibliotekanauki.pl/articles/1009100.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Beskid Slaski
Beskid Zywiecki
drzewa lesne
buk zwyczajny
Fagus sylvatica
uprawy lesne
wysokosc nad poziomem morza
udatnosc uprawy
sadzonki
wzrost roslin
zywotnosc
cultures
european beech
biometrical features
survival
quality
vitality
final silviculture assessment
Opis:
In autumn 2006, i.e. in the 5th year from the culture establishment, and when the tree growth had finished, on each culture we measured tree height, height increments in the years 2004−2006 and root collar diameters. We also noted the presence of the main shoot and top bud on the main shoot, size and color of the assimilative apparatus and determined the survival rate of the seedlings. The assessed and measured features allowed for determination of the seedling quality and vitality. Mean values of all features were calculated for plots and their groups, distinguished on the basis of their belonging to particular forest districts and regions as well as basing on the presence or absence of stand protection and in regard to stand disintegration. The results indicate the poor condition of parts of the cultures with beech. Generally, the quality and vitality of the seedlings was assessed to be average, with a smaller or larger tendency towards the decrease. This points towards difficulties in performing stand regeneration and in varying their composition in the higher locations of the Beskid Śląski and Żywiecki Mts., which experience extreme climatic conditions. This was observed particularly on height and quality parameters worsened along with an increase in a degree of stand disintegration. Many beech seedlings grew better on the fenced plots than on the unfenced ones, which indicates positive results of the protection of cultures against game and justifies their fencing.
Źródło:
Sylwan; 2010, 154, 10; 710-120
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena zasobów genowych świerka istebniańskiego na powierzchniach zachowawczych in situ i ex situ
Evaluation of gene resources of Istebna spruce at in situ and ex situ conservation plots
Autorzy:
Młynarczyk, A.
Sabor, J.
Banach, J.
Rożkowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/973921.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Picea abies
zasoby genowe
ocena na podstawie potomstwa
cechy adaptacyjne
powierzchnie zachowawcze
leśnictwo
drzewa leśne
świrk pospolity
przeżywalność
świerk istebnianski
wartość genetyczna
wartość hodowlana
Karpacki Bank Genów
norway spruce provenances
survival
d.b.h
heritability
adaptation
Carpathian Gene Bank
Opis:
On the basis of survival rate and breast height diameter divergence at age of 16, the adaptation of progeny of 45 Norway spruce stands of the Istebna race was evaluated in the Wisla (in situ) and Kórnik (ex situ) plots of the Carpathian Gene Bank. The determination concerned the significance of the effect of genetic (provenance) and environmental (block) factors as well as the effect of interaction of these factors on the divergence of the investigated adaptation traits. A selected Norway spruce population was characterized by the highest survival rate and breast height diameter in the habitat conditions of both conservation areas.
Źródło:
Sylwan; 2011, 155, 10; 674-686
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czasowe i przestrzenne relacje między nasionami i siewkami drzew w buczynie karpackiej
Temporal and spatial relationship between seeds and seedlings in the Carpathian beech forest
Autorzy:
Skrzydłowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/1013031.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lasy gorskie
lesnictwo
Picea abies
klon pospolity
zageszczenie roslin
jodla pospolita
Acer pseudoplatanus
przezywalnosc
buk zwyczajny
nasiona
Abies alba
siewki
Fagus sylvatica
buczyna karpacka
drzewa lesne
swierk pospolity
seeds survival
fagus sylvatica
abies alba
picea abies
acer pseudoplatanus
Opis:
The research was conducted in beech−fir and beech stands in the territory of the Babiogórski and Ojcowski national parks. The obtained results showed that the density of seedlings after the autumn seed fall was small. The seed fraction from which seedlings emerged did not exceed 8%. In the Babiogórski National Park, no spatial relationship was found between seed and seedling abundance. However, such relationship was found in beech and sycamore in the Ojcowski National Park during one season. This was associated with a lower density of seed predating rodents in the forests around Ojców than on the Babia Góra and the specificity of the environmental providing a wide variety of living conditions for small mammals.
Źródło:
Sylwan; 2008, 152, 10; 41-47
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 16

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