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    Wyświetlanie 1-6 z 6
    Tytuł:
    Wpływ oddziaływań brzegowych na roślinność polan leśnych w Sudetach Środkowych
    Influence of the edge effect on the vegetation of forest glades in the Middle Sudety Mts. (SW Poland)
    Autorzy:
    Pruchniewicz, D.
    Żołnierz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/989965.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gory
    Sudety Srodkowe
    Gory Sowie
    Gory Bardzkie
    Wzgorza Wlodzickie
    Wzgorza Wyrebinskie
    polany srodlesne
    oddzialywania brzegowe
    roslinnosc lakowa
    sklad gatunkowy
    roznorodnosc gatunkowa
    forest glades
    edge effect
    species composition
    functional groups
    species diversity
    Opis:
    The influence of the edge effect on the meadow vegetation pattern was studied in the forest glades in the central part of the Middle Sudety Mts. (SW Poland). The spectacular edge effect is seen in the range of 4 m from the forest border towards the center of the glades. Within that belt we observed decrease in tree and bush species number, increase in share of graminoids and Fabaceae species, as well as increase in share of species generally related to grassland communities. A significant increase in species number and values of Shannon−Wiener diversity index was noticed within the distance of eight meters from the edges of glades.
    Źródło:
    Sylwan; 2014, 158, 07; 524-530
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of Calamagrostis epigejos expansion on the species composition and soil properties of mountain mesic meadows
    Autorzy:
    Pruchniewicz, D.
    Zolnierz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/58902.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    Due to social and economic changes which have occurred in the last decades, many meadows located in mountain regions have ceased to be used. Abandonment of meadows leads to the degradation of their species composition. An example of degradation may be seen in the development of patches dominated by Calamagrostis epigejos. The aim of this research was to determine the influence of C. epigejos in its consecutive expansion stages on qualitative properties of meadow sward and on selected physico-chemical properties of soils. The study revealed strong degradation of mountain meadows due to the expansion of C. epigejos. The degradation manifested in a decrease in species diversity, a decline of species typical for mesic meadows, and an increased proportion of synanthropic species. The increase in aboveground biomass of C. epigejos strongly reduced the biomass of other species, while underground biomass had no effect on accompanying species. However, only a small impact of C. epigejos expansion on soil degradation was detected. The cumulating plant necromass dominated by this species caused a decrease in diversity indices and, at the same time, an increase in exchangeable forms of potassium and phosphorus in the soil.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2017, 86, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kształtowanie właściwości gleb w borze sosnowym z udziałem czeremchy amerykańskiej (Prunus serotina Ehrh.)
    Soil properties in Scots pine forest invaded by Prunus serotina (Ehrh.)
    Autorzy:
    Halarewicz, A.
    Pruchniewicz, D.
    Kawałko, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/988988.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany sosnowe
    podszyt
    gatunki inwazyjne
    ekspansja roslin
    czeremcha amerykanska
    Prunus serotina
    gleby lesne
    zawartosc wegla organicznego
    zawartosc azotu ogolnego
    stosunek wegla do azotu
    odczyn gleby
    zmiany zawartosci
    zmiennosc sezonowa
    black cherry
    scots pine forest
    plant invasions
    soil properties
    Opis:
    Black cherry (Prunus serotina) was planted in forests in Central Europe in the hope of producing valuable timber and after the first disappointments, in the hope of improving the soils of coniferous plantations. Nevertheless, an unequivocal evaluation of its effect on soil environment is still a controversial issue. The aim of this study was to determine a temporary fluctuation of selected soil properties in Scots pine forest dominated by black cherry. The research was carried out in Wołów Forest Division (SW Poland). Two Scots pine monocultures developed on podzol site with and without P. serotina in shrub layer, were selected for the study. Twelve research plots (10×10 m) were randomly selected on the sites. On each plot the cover of P. serotina in the shrub layer was evaluated and every three months, during single research year (November 2013 − November 2014) soil properties (total N, organic C, soil reaction) were determined in organic (O) and humus (A) horizons. Analysis of variance and PCA procedure demonstrate some significant relationships between P. serotina and soil properties in Scots pine forest. The presence of black cherry contributes to continued changes in the organic horizon expressed by increase in total N (range of average from 1.14 to 1.38%) and drop in C:N ratio (range of average from 22.86 to 25.73). Apart from the spring, increase in pH value in the organic (range of average from 4.03 to 4.58) and humus horizons (range of average from 3.59 to 4.04) was found on the site invaded by black cherry.
    Źródło:
    Sylwan; 2017, 161, 02; 149-154
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling the potential distribution of three lichens of the Xanthoparmelia pulla group (Parmeliaceae, Ascomycota) in Central Europe
    Autorzy:
    Szczepanska, K.
    Pruchniewicz, D
    Kossowska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/56521.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    niche modelling
    biogeography
    distribution
    lichen
    Xanthoparmelia pulla
    Xanthoparmelia delisei
    Xanthoparmelia loxodes
    Xanthoparmelia verruculifera
    Parmeliaceae
    Ascomycota
    Central Europe
    Europe
    Opis:
    The paper presents models of potential geographical distribution of Xanthoparmelia delisei, X. loxodes, and X. verrucu-lifera in Central Europe. The models were developed with MaxEnt (maximum entropy algorithm) based on 224 collection localities and bioclimatic variables. The applied method enabled to identify the areas where climatic conditions are the most suitable for modeled species outside their known localities. According to obtained model, high potential distribution of the X. delisei and X. loxodes was found in the northern and northeastern Poland, when areas most suitable for X. verruculifera were placed in the south, especially in the Carpathians. Model also suggests that potential distribution of X. delisei could be wider than known data on its occurrence and extend to Lithuania, Belarus and the Czech Republic. MaxEnt modeling of X. loxodes showed the widest potential distribution for this species in Central Europe with the best regions in Lithuania. Potential distribution in all models was strongly influenced by precipitation-related variables. All the modelled species prefer areas where precipitation in the coldest quarter is very low.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2015, 84, 4
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A performance comparison of sampling methods in the assessment of species composition patterns and environment–vegetation relationships in species-rich grasslands
    Autorzy:
    Swacha, G.
    Botta-Dukat, Z.
    Kacki, Z.
    Pruchniewicz, D.
    Zolnierz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/57680.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    The influence that different sampling methods have on the results and the interpretation of vegetation analysis has been much debated, but little is yet known about how the spatial arrangement of samples affect patterns of species composition and environment–vegetation relationships within the same vegetation type. We compared three data sets of the same sample size obtained by three standard sampling methods: preferential, random, and systematic. These different sampling methods were applied to a study area comprising of 36 ha of intermittently wet Molinia meadows. We compared the performance of the three methods under two management categories: managed (extensively mown) and unmanaged (abandoned for 10 years). A total of 285 vegetation-plots were sampled, with 95 plots recorded per sampling method. In preferential sampling, we sampled only patches of vegetation with an abundance of indicator species of the habitat type, while random and systematic plots were positioned independently from the researcher by using GIS. The effect of each sampling method on the patterns of species composition and species–environment relationships was explored by redundancy analysis and the significance of effects was tested by the randomization test. Preferential sampling revealed different patterns of species composition than random and systematic sampling methods. Random and systematic sampling methods have resulted in broader vegetation variability than with preferential sampling method. Preferential sampling revealed different relationship between soil parameters and species composition in contrast to random and systematic sampling methods. Although we have not found significant differences in vegetation–environment relationships between random and systematic sampling methods, random sampling revealed a more robust correlation of species data to soil factors than preferential and systematic sampling methods. Intentional restriction of vegetation variation sampled preferentially may be detrimental to statistical inference in studies of species composition patterns and vegetation–environment relationships.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2017, 86, 4
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Właściwości odpadów na hałdach górniczych węgla kamiennego w Nowej Rudzie w aspekcie ich biologicznej rekultywacji
    Properties of waste rock deposited on mine spoils of hard coal mines in Nowa Ruda with the perspective of their biological reclamation
    Autorzy:
    Szopka, K.
    Bogda, A.
    Karczewska, A.
    Gałka, B.
    Wojtkowiak, M.
    Pruchniewicz, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/372181.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    hałdy
    węgiel kamienny
    rekultywacja
    gleba
    mine spoils
    hard coal
    reclamation
    soil
    Opis:
    Badano właściwości nieprzepalonego materiału odpadowego na hałdzie KWK Piast w Nowej Rudzie. Materiał wykazywał zbliżone właściwości w różnych częściach hałdy. Charakteryzował się dużą szkieletowością, znacznym udziałem węgla i obojętnym lub alkalicznym odczynem. Zasolenie mieściło się w klasie 0. Zawartości Pb, Zn i Cu były niskie. Nie stwierdzono istnienia czynników niekorzystnych dla rekultywacji.
    Examined were the properties of unburned waste rock on the mine spoil of the coal mine Piast in Nowa Ruda. Waste material was relatively homogeneous in various parts of the spoil. It contained high amounts of skeleton and residual coal, and its pH was neutral or alkaline. The salinity was in the class 0, and Pb, Zn, and Cu concentrations were low. Those properties should not negatively affect the process of reclamation.
    Źródło:
    Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2010, 138 (18); 5-11
    1895-7323
    Pojawia się w:
    Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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