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    Wyświetlanie 1-9 z 9
    Tytuł:
    Weryfikacja modelu stateczności drzew na terenach zalewowych na przykładzie dębu Quercus robur L., sosny Pinus sylvestris L. i olchy Alnus glutinosa (L.) Gaertn.
    Validation of a stability model for riparian forest trees: examples using pedunculate oak Quercus robur L., Scots pine Pinus sylvestris L. and black alder Alnus glutinosa (L.) Gaertn.
    Autorzy:
    Kaluza, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/45598.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    tereny zalewowe
    drzewa
    dab szypulkowy
    Quercus robur
    sosna zwyczajna
    Pinus sylvestris
    olsza czarna
    Alnus glutinosa
    statecznosc
    moment krytyczny
    Źródło:
    Leśne Prace Badawcze; 2012, 73, 2
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reakcja głównych gatunków drzew leśnych w uprawach i młodnikach na obszarze objętym powodzią w Nadleśnictwie Brzeg
    Reaction the main forest species in the forest cultures and samplings on the areas with flood in the Brzeg Forest Inspectorate
    Autorzy:
    Kocjan, H.
    Pawluk, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1019622.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    mlodniki
    gatunki lasotworcze
    Quercus robur
    lesnictwo
    Picea abies
    olsza czarna
    dab szypulkowy
    uprawy lesne
    Pinus sylvestris
    reakcje roslin
    tereny popowodziowe
    sosna zwyczajna
    powodzie
    Alnus glutinosa
    Nadlesnictwo Brzeg
    drzewa lesne
    swierk pospolity
    flood
    scots pine
    norway spruce
    common oak
    black alder
    Opis:
    The flood, which occurred in July and August 1997 on the areas of Brzeg Forest Inspectorate, inundated about 6150 ha of forests. Forests were flooded 3 weeks and the height of water was more than 2 m. Evaluation of the damages caused by the flood were conducted with reference to cultures and sapling of pine, spruce, oak and alder in 1998−2001. The observed damages were not very high.
    Źródło:
    Sylwan; 2006, 150, 01; 31-39
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nawozy fosforynowe jako stymulatory wzrostu roślin w szkółkach leśnych
    Phosphite fertilizers as a plant growth stimulators in forest nurseries
    Autorzy:
    Tkaczyk, M.
    Nowakowska, J.A.
    Oszako, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/991118.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    szkolki lesne
    nawozy
    Actifos
    stymulatory wzrostu
    sadzonki
    sosna zwyczajna
    Pinus sylvestris
    swierk pospolity
    Picea abies
    dab szypulkowy
    Quercus robur
    buk zwyczajny
    Fagus sylvatica
    olsza czarna
    Alnus glutinosa
    wzrost roslin
    fertilizer
    actifos
    seedlings
    pinus sylvestris
    picea abies
    quercus robur
    fagus sylvatica
    alnus glutinosa
    Opis:
    In the situation of limited number of pesticides being approved for use in forest nurseries it is necessary to examine new products available on European market that stimulate growth and improve resilience and vitality of seedlings as a part of intgrated plant protection program. Paper presents test of fertilizer Actifos used in seven Polish nurseries in order to stimulate the growth of seedlings. In 64% of cases, Actifos stimulated increament of shoots (significantly for oaks, beeches, pines, spruces and alders) as well as for roots (significantly only for alders and oaks).
    Źródło:
    Sylwan; 2014, 158, 01; 3-9
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przeżywalność i wzrost pędraków Melolontha spp. na korzeniach głównych gatunków drzew leśnych
    Survival and growth of the Melolontha spp. grubs on the roots of the forests main tree species
    Autorzy:
    Woreta, D.
    Sukovata, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1313140.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    ochrona lasu
    drzewa lesne
    sadzonki
    dab szypulkowy
    Quercus robur
    dab bezszypulkowy
    Quercus petraea
    buk zwyczajny
    Fagus sylvatica
    brzoza brodawkowata
    Betula pendula
    olsza czarna
    Alnus glutinosa
    modrzew europejski
    Larix decidua
    sosna zwyczajna
    Pinus sylvestris
    korzenie
    szkodniki roslin
    zerowanie
    Melolontha
    pedraki
    przezywalnosc
    masa ciala
    Alnus
    glutinosa
    relative growth rate
    mortality
    food quality
    Opis:
    The survival, weight and relative growth rate (RGR) of the Melolontha spp. grubs feeding on roots of Quercus petraea, Q. robur, Fagus sylvatica, Betula pendula, Larix decidua, Alnus glutinosa and Pinus sylvestris were examined. Overall, the youngest grubs, L1, were the most affected by food quality. The mortality of the grubs feeding on the roots of A. glutinosa changed most rapidly and, consequently, LT50 was the shortest (25.9 days), whereas the slowest changes in mortality with the highest LT50 values were observed on the two oak species (54.9 and 44.9 days on Q. robur and Q. petraea, respectively). The RGRs of the L1 grubs were the highest on oaks, F. sylvatica and B. pendula. The overall rate of survival of the older grubs was high (66.7-100%). It was the lowest on the roots of B. pendula (L2 grubs) and L. decidua (L3 grubs), which at the same time displayed the highest RGRs. The interpretation of the results is difficult due to the lack of basic knowledge on the potential effects of food quality and other factors on grub metamorphosis. There is no doubt, however, that among the seven tested tree species the roots of A. glutinosa are the least favorable for the Melolontha grubs' performance.
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 4; 375-383
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ potencjalnych zmian klimatycznych na zdolność konkurencyjną głównych gatunków drzew w Polsce
    Impact of potential climate changes on competitive ability of main forest tree species in Poland
    Autorzy:
    Zajączkowski, J.
    Brzeziecki, B.
    Perzanowski, K.
    Kozak, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/991514.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zmiany klimatyczne
    oddzialywanie na rosliny
    drzewa lesne
    gatunki lasotworcze
    jodla pospolita
    Abies alba
    olsza czarna
    Alnus glutinosa
    brzoza brodawkowata
    Betula pendula
    buk zwyczajny
    Fagus sylvatica
    jesion wyniosly
    Fraxinus excelsior
    swierk pospolity
    Picea abies
    sosna zwyczajna
    Pinus sylvestris
    dab szypulkowy
    Quercus robur
    konkurencyjnosc
    climate change
    forest gap model
    growth multipliers
    tree competition
    Opis:
    An influence of environmental changes upon forest tree species competition was studied for suggested scenario of environmental changes (3−4°C increase of monthly temperatures), 8 main tree species and 6 natural regions. For a synthetic assessment of the reaction of various species for thermal and higric parameters of the climate, the growth multipliers DDGF and SMGF were used. The main environmental factor influencing future growth of tree species in Poland will be water shortage due to increased evapotranspiration. Regional decrease of water sensitive species importance, eg. alder, spruce and birch, accompanied by country−scale expansion of highly competitive, late−successional species, eg. beech and hornbeam is expected.
    Źródło:
    Sylwan; 2013, 157, 04; 253-261
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Grzyby zasiedlające nasiona wybranych gatunków drzew leśnych
    Fungi inhabiting seeds of selected forest tree species
    Autorzy:
    Król, E.D.
    Machowicz-Stefaniak, Z.
    Zimowska, B.
    Abramczyk, B.A.
    Zalewska, E.D.
    Powiązania:
    https://bibliotekanauki.pl/articles/973515.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    brzoza brodawkowata
    Betula pendula
    buk zwyczajny
    Fagus sylvatica
    Quercus robur
    Quercus rubra
    klon jawor
    Acer pseudoplatanus
    olsza czarna
    Alnus glutinosa
    Abies alba
    modrzew europejski
    Larix decidua
    sosna zwyczajna
    Pinus sylvestris
    swierk pospolity
    Picea abies
    nasiona
    wykaz gatunkow
    leśnictwo
    drzewa leśne
    dąb szypułkowy
    jodła pospolita
    dąb czerwony
    grzyby zasiedlające nasiona
    pathogens
    mycological analysis
    coniferous trees
    deciduous trees
    fungal communities
    Opis:
    The seeds of forest trees usually transfer numerous fungi species, including pathogens, facultative parasites and saprotrophs. The aim of the present work was to determine qualitative and quantitative composition of fungi inhabiting the seeds of 10 trees species i.e.: birch (Betula pendula Roth.), beech (Fagus sylvatica L.), red oak (Quercus rubra L.), common oak (Quercus robur L.), sycamore maple (Acer pseudoplatanus L.), black alder (Alnus glutinosa Gaerth.), fir (Abies alba Mill.), European larch (Larix decidua Mill.), pine (Pinus sylvestris L.) and spruce (Picea abies (L.) H. Karst). The seed samples were obtained courtesy of 5 forest districts located in the south−eastern Poland. Mycological analysis was performed in the years 2012−2013. Each time, the study included 100 surface−disinfected seeds of particular plant species. As a result of the study about 2000 colonies of fungi representing 26 genera and above 39 species were isolated. The most frequently occurring species were: Fusarium spp., Penicillium spp., Alternaria alternata, Cladosporium cladosporioides, Trichoderma koningii, Epicoccum nigrum, Phoma spp. and Cylindrocarpon destructans. Moreover Discula spp., Phyllosticta spp., Pyrenochaeta spp., Rhizoctonia solani, Alternaria consortiale were obtained only from the seeds of deciduous trees while Truncatella angustata and Sphareopsis sapinea exclusively from the seeds of coniferous trees. The genus Fusarium was represented by 8 species and among them F. avenaceum, F. oxysporum and F. sporotrichioides dominated. Moreover Penicillium spp., Epicoccum nigrum, Trichoderma koningii, Botrytis cinerea, Cladosporium cladosporioides, Chaetomium globosum and Trichothecium roseum were commonly isolated while the other species of fungi were present in smaller numbers. Isolation of numerous fungi species which may cause mold of sowing material, seedling blight as well as leaves and needles spot, indicates their big threat for seeds during storage and for plants in the initial period of growth in a nursery. The obtained results show that the seeds, besides the infected soil, are a very important source of infection for young plants.
    Źródło:
    Sylwan; 2015, 159, 02; 135-141
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rola lasotwórcza i amplitulda ekologiczna drzew na obszarze Puszczy Kozienickiej i dzielnicy Radosmko-Iłżeckiej
    Lesosozidatel'naja rol' i ehkologichesaja amplituda derev'ev na territorii Kozenickojj Pushhi i Radomsko-Ilzheckogo prirodno-lesnogo rajjona
    The role in forest formation and ecological amplitude of trees on the area of the Kozienice Forest and the Radom-Ilza district
    Autorzy:
    Zareba, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/812082.pdf
    Data publikacji:
    1971
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Puszcza Kozienicka
    Puszcza Stromecka
    Nadlesnictwo Lipsko
    Nadlesnictwo Malomierzyce
    lasy
    fitosocjologia
    drzewa lesne
    gatunki lasotworcze
    sosna zwyczajna
    Pinus sylvestris
    dab bezszypulkowy
    Quercus petraea
    dab szypulkowy
    Quercus robur
    jodla pospolita
    Abies alba
    olsza czarna
    Alnus glutinosa
    olsza szara
    Alnus incana
    grab pospolity
    Carpinus betulus
    brzoza brodawkowata
    Betula pendula
    jesion wyniosly
    Fraxinus excelsior
    buk zwyczajny
    Fagus sylvatica
    lipa drobnolistna
    Tilia cordata
    klon jawor
    Acer pseudoplatanus
    wiaz szypulkowy
    Ulmus laevis
    topola czarna
    Populus nigra
    topola biala
    Populus alba
    modrzew polski
    Larix polonica
    cis pospolity
    Taxus baccata
    wystepowanie
    Źródło:
    Sylwan; 1971, 115, 04
    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 1-9 z 9

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