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    Wyświetlanie 1-6 z 6
    Tytuł:
    Dynamika zarastania przez las górnoreglowych polan popasterskich w Tatrach Polskich
    Autorzy:
    Ciurzycki, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1022291.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    sukcesja roslin
    Tatry
    Picea abies
    regiel gorny
    lesnictwo
    polany popasterskie
    zarastanie
    swierk pospolity
    upper montane belt glades
    pasturage abandonment
    succession dynamics
    norway spruce
    tatra mountains
    Opis:
    The paper presents relation between spruce covering and their average heigt, and part of spruce trees in various categories of height in restocking on the upper montane belt glades excluded from pasturage in Polish Tatra Mountains. There was described spruce emerging dynamics in last time and possibilities of future forest succession on the glades.
    Źródło:
    Sylwan; 2005, 149, 02; 35-41
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changing Land Use in Recent Decades and Its Impact on Plant Cover in Agricultural and Forest Landscapes in Poland
    Autorzy:
    Bomanowska, Anna
    Kiedrzyński, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/764910.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Tematy:
    cultural landscape
    human disturbance
    land use changes
    regeneration
    secondary succession
    vegetation dynamics processes
    Opis:
    The objective of this paper is to present the effects of general changes in land use in recent decades on plant cover structure in Poland. The paper is focused on spontaneous processes that occur in agricultural and forest areas being no longer under human pressure. Studies carried out in different geobotanical regions of Poland demonstrated that the directions and range of dynamic changes in plant cover are similar across the country. The formation of secondary forest phytocenoses, on the lands delivered from human activity is a common ecological process observed today in the agricultural landscape. In the dynamics of forest vegetation the basic process is regeneration after ceased use, and the introduction of legal protection.
    Źródło:
    Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2011, 7; 5-26
    1730-2366
    2083-8484
    Pojawia się w:
    Acta Universitatis Lodziensis. Folia Biologica et Oecologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Trilobite faunal dynamics on the Devonian continental shelves of the Ardenne Massif and Boulonnais (France, Belgium)
    Autorzy:
    Bignon, A.
    Cronier, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/21493.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Trilobita
    trilobite
    fauna dynamics
    fauna succession
    Devonian
    continental shelf
    Ardenne Massif
    Boulonnais region
    France
    Belgium
    Opis:
    During the Devonian the sedimentation on the continental shelves of Ardenne Massif and Boulonnais has changed from a mixed siliciclastic-carbonate ramp (Eifelian), through a carbonate barrier reef (Givetian) and then to a detritic influx with local mud-mounds (Frasnian). Here we analysed the faunistic dynamics of the trilobite associations through the changing environment. We used multivariate analyses (clustering and ordering) to discriminate the trilobite associations within 67 different samples. Three previously known communities and one new were recognised: the Eifelian Mixed association, the Givetian Dechenella association and the two Frasnian Bradocryphaeus and Scutellum-Goldius associations. These trilobite faunas present a progressive ecological specialisation. The Mixed association occurs both in the ramp or carbonated (local reef developed on the ramp) facies without any significant difference in its composition. The Dechenella fauna occurs preferentially close to barrier reefs, but can also survive during short periods of detrital input. The two Frasnian communities show a strong relationship with their environment. The Scutellum-Goldius association is only found in reef systems, whereas the Bradocryphaeus flourishes exclusively in lateral facies.
    Źródło:
    Acta Palaeontologica Polonica; 2015, 60, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biomass dynamics in young silver birch stands on post-agricultural lands in Central Poland
    Autorzy:
    Zasada, M.
    Bijak, S.
    Bronisz, K.
    Bronisz, A.
    Gaweda, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/52729.pdf
    Data publikacji:
    2014
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
    Tematy:
    biomass dynamics
    young tree
    silver birch
    stand
    secondary succession
    afforestation
    biomass allocation
    post-agricultural land
    Central Poland
    Opis:
    The paper analyses the production and allocation of biomass in young, spontaneoussilver birch afforestation occurring on post-agricultural lands in the Mazowszeregion (central Poland). We investigated 114 sample plots of age varying from 1 to 19 years. During the first 15 years after their establishment on abandoned farmland, the naturally regenerated silver birch stands produced on average approximately 75 tons of dry biomass per hectare. The major (50–70%) part of this biomass was stored in the tree stems and this share increased with age. The fractions of biomass in the foliage and roots decreased over time, while the share of biomass in the branches remained rather constant. The significant age-dependency of the allometric relationships suggested the need to use age-sensitive biomass expansion factors to estimate the biomass from the stem volume.
    Źródło:
    Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2014, 57, 192
    1644-3985
    Pojawia się w:
    Drewno. Prace Naukowe. Doniesienia. Komunikaty
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of weather on dynamics of plant functional groups in an abandoned limestone grassland
    Autorzy:
    Dzwonko, Z.
    Loster, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/58030.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    weather impact
    climate condition
    plant-weather relation
    dynamics
    plant functional group
    abandoned grassland
    limestone grassland
    permanent plot
    secondary succession
    Polska
    Opis:
    We examined to what extend the rate and direction of changes in unmanaged grassland depend on fluctuations in climatic conditions. Vegetation data from permanent plots in a semi-natural grassland in southern Poland collected over 12 years were used. Relations between weather variables, time, and the cover of 41 more frequent species and 14 plant functional groups were analysed. The greatest effect on the dynamics of species and functional groups had precipitation in spring and/or early summer, particularly in the current year. The majority of plant groups were significantly affected also by the temperature in spring and early summer in one of the three previous years. During 12 years, the cover of annuals and biennials, short plants, and plants with small leaves decreased, while the cover of taller plants, plants with larger leaves, and with vegetative spread increased. The analyses suggest that these successional changes were not directly associated with climatic conditions but were affected by them indirectly through interspecific competition. The fluctuations in climatic conditions, chiefly precipitation, had a significant effect on both the composition and the rate of changes in abandoned grassland. The increase in the cover of tall perennial species with broad leaves hindered succession towards woodland despite of the presence of woods in the closed vicinity. It can be expected that during drier periods colonisation of grassland by later successional species could be easier.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2011, 80, 4
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiany w szacie roślinnej rezerwatu Grąd Radziwiłłowski (Wysoczyzna Drohiczyńska) w latach 1971−2008
    Changes in the vegetation of the Grad Radziwillowski nature reserve [Drohiczynska Upland] between 1971 and 2008
    Autorzy:
    Ciosek, M.T.
    Chursowicz, B.
    Borkowska, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009206.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    rezerwaty przyrody
    rezerwat Grad Radziwillowski
    fitosocjologia
    zbiorowiska roslinne
    flora
    zmiany skladu gatunkowego
    dynamics of forest stand
    succession
    quantitative and qualitative proportions of the flora
    southern podlasie region
    drohiczyńska upland.
    Opis:
    Studies on changes in the vegetation of the Grąd Radziwiłłowski nature reserve were carried out between 2005 and 2008. The nature reserve is situated in the southern part of the Podlasie region, near Radziwiłłówka village (Mielnik county). The results were compared with the research conducted by Sokołowski in 1971 and 1989 [Sokołowski 1993] and with data from establishment statement of the nature reserve. Structure and physiognomy of the forest stand as well as quantitative and qualitative proportions in the flora have changed in the studied period. The vegetation of the reserve ought to be monitored.
    Źródło:
    Sylwan; 2010, 154, 04; 275-281
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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