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    Wyświetlanie 1-4 z 4
    Tytuł:
    Sukcesja wtórna drzew w krajobrazie wydmowym stałej powierzchni badawczej Glinki w świetle analizy GIS
    Secondary succession of trees in the dune landscape of the "Glinki" long-term research area - analysis with GIS
    Autorzy:
    Sewerniak, P.
    Mendyk, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1311058.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    poligony wojskowe
    stale powierzchnie obserwacyjne
    wydmy
    sukcesja roslin
    drzewa
    rozmieszczenie przestrzenne
    analiza przestrzenna
    relief
    slope aspect
    Podzols
    military area
    spatial analysis
    Opis:
    The aim of the study was to present the main characteristics of the “Glinki” research area together with results of the first measurements on tree number, density, distribution and species composition carried out in 2011. The research was conducted in a free-of-forest management part of the Toruń military area which is located in one of the biggest inland dune fields of Europe. The “Glinki” research area was established in 2011 and consists of two plots (together 26.3 ha), which are in close proximity to each other. After the last fire in 1991, secondary succession has been the main factor shaping vegetation on both plots. For every plot, the location of all trees of at least 1 m height (560 in plot I and 292 in plot II) was determined. These measurements were subjected to spatial analysis in ArcGIS 9.3 with special emphasis on the exposure of the dune slopes. The main tree species on both plots were Scots pine, Pinus sylvestris, and birch, Betula pendula, (82 % and 17 % of all trees respectively). Tree density 20 years after the last fire was very low (32 trees/ha), which mainly resulted from the lack of a sufficient source of seeds in the close vicinity of the plots during the first years after the fire. We also found that tree distribution was related to the main direction of seed inflow and land relief. Tree density was much higher on dune slopes with a northern exposure when compared to other slope exposures, which resulted from different site conditions on the different slopes.
    Źródło:
    Leśne Prace Badawcze; 2015, 76, 2; 122-128
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Uwarunkowane litopedogenicznie rozmieszczenie Cu, Ni i Zn w profilach leśnych gleb rdzawych i glejobielicowych terasy nadzalewowej Słupi
    Vertical distribution of Cu, Ni and Zn in Brunic Arenosols and Gleyic Podzols of the supra-flood terrace of the Slupia River as affected by litho-pedogenic factors
    Autorzy:
    Jonczak, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1313255.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    gleboznawstwo lesne
    gleby lesne
    gleby rdzawe
    gleby glejobielicowe
    profile glebowe
    metale ciezkie
    miedz
    nikiel
    cynk
    zawartosc pierwiastkow
    rozmieszczenie pierwiastkow
    tarasy nadzalewowe
    dolina Slupi
    copper
    nickel
    zinc
    Brunic Arenosols
    Gleyic Podzols
    Opis:
    The aim of the study was to assess the influence of lithological and pedogenic factors in the shaping of Cu, Ni and Zn distribution patterns in the profiles of Brunic Arenosols and Gleyic Podzols of the lower supra-flood terrace of the Słupia River, which is located outside the range of significant anthropogenic sources of pollution with these metals. The contents of the investigated metals were analyzed in aqua regia extracts of samples collected from three profiles of Brunic Arenosols, composed of river sands, and three profiles of Gleyic Podzols, composed of river sands transformed by eolian processes. In general, river sands contained higher amounts of Ni and Zn (2.6–6.9 mg·kg-1 Ni; 10.3–16.2 mg·kg-1 Zn) compared to eolian sands (1.2–2.4 mg·kg-1 Ni; 3.3–17.3 mg·kg-1), while the content of copper tended to be higher in eolian sands (1.3–1.9 mg·kg-1) than river sands (0.1–1.5 mg·kg-1). The observed differences between the two types of sand are due to the loss of fine granulometric fractions and various minerals during eolian processes. Higher concentrations of the investigated metals in soil solum as compared to parent material are due to their uptake from deeper parts of the soil by roots and subsequent return to the soil surface by litter fall. Therefore, the highest concentrations of Cu, Ni and Zn were observed in ectohumus. In the mineral component of the soil, the highest concentrations were observed in organic matter-rich A and B horizons, which indicate close interactions between heavy metals, humic substances and iron oxides. The vertical distribution of the investigated metals in the profiles of Gleyic Podzols indicates their leaching during podzolization. The observed contents of Cu, Ni and Zn, both in Brunic Arenosols and Gleyic Podzols, were lower than the geochemical background, which confirms that anthropogenic contamination of the studied area with these metals is marginal.
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 4; 333-341
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ sposobu przygotowania gleby na dynamikę jej warunków wodnych na wydmach Kotliny Toruńskiej
    Effect of site preparation method on dynamics of soil water conditions on inland dunes of the Torun Basin
    Autorzy:
    Sewerniak, P.
    Stelter, P.
    Bednarek, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/987135.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Kotlina Torunska
    wydmy srodladowe
    uprawy lesne
    rzezba terenu
    przygotowanie gleby
    plug LPZ-75
    frez lesny
    gleby bielicowe
    zawartosc wegla organicznego
    higroskopijnosc
    wilgotnosc gleby
    warunki wodne
    zapas wody w gruncie
    soil
    site preparation
    forest site
    inland dunes
    topography
    podzols
    dry areas
    Opis:
    The research was conducted in a young Scots pine (Pinus sylvestris) plantation located in a dune area of the Toruń Basin (N Poland). The aim of the study was to investigate differences in dynamics of soil water conditions followed different method used for site preparation. The three plots were investigated in the study: belt of soil prepared by a mill, north−facing slope of a dune (FR−N), belt of soil prepared with a mill, south−facing slope of a dune (FR−S) and soil prepared with a plough (furrows) on the ridge of a small aeolian mound (LPZ). On each plot soil samples were taken and soil moisture was regularly measured from April to December of 2013 (the TDR method). The measurements of soil moisture were taken at four depths (3, 10, 25 and 50 cm) at intervals of ca. 2 weeks. Additionally, soil moisture was also measured on 25.08.2015. It was done to determine soil water conditions for a deep summer drought (the measurements were taken twice this day – just before and after rain which turned to be the first since ca. a month). Reserves of soil moisture and shares of water unavailable to plants were calculated for every measure day for each study plot. As a result of higher organic carbon content, values of soil actual moisture as well as reserves of soil moisture were almost regularly higher for belts mixed with a mill than for furrows prepared with a plough (fig. 1, 3). Opposite relation was found, however for the summer drought (tab. 2). This was explained by the higher repellence of rich in organic mater, dried material occurring in belts. On 25.08.2015 much lower improvement of water conditions after rain was also stated for this material than for topsoil in LPZ. Unfavoured soil water conditions for plants occurring in belts in dry periods could explain relatively low dynamics of pine growth revealed for the variant of soil preparation in a previous study. However, it was concluded that a forest mill should be recommended for forestry, because the device much less disturbs topsoil than a plough. Besides, differences in growth parameters of pines followed different methods of soil preparation used before planting decline in next years of a stand growth.
    Źródło:
    Sylwan; 2017, 161, 01; 52-61
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ sposobu przygotowania gleby na dynamikę jej temperatury na wydmach Kotliny Toruńskiej
    Effect of site preparation method on dynamics of soil temperature on inland dunes of the Torun Basin
    Autorzy:
    Sewerniak, P.
    Stelter, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/989413.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Kotlina Torunska
    wydmy srodladowe
    uprawy lesne
    rzezba terenu
    przygotowanie gleby
    plug LPZ-75
    frez lesny
    gleby bielicowe
    gestosc objetosciowa
    porowatosc
    wilgotnosc gleby
    zawartosc materii organicznej
    temperatura gleb
    dynamika temperatury
    pojemnosc cieplna
    soil
    thermal conditions
    site preparation
    inland dunes
    topography
    podzols
    dry areas
    Opis:
    The objective of the study was to determine the dynamics of soil temperature on inland dunes in the Toruń Basin (N Poland) with reference to the two methods of site preparation: homogenization of belts with a forest mill (FR) and preparation of trenches with a double−mouldboard plough LPZ−75 (LPZ). The study was conducted in a young Scots pine (Pinus sylvestris) plantation on plots with soil prepared by a forest mill on north− and south−facing slopes of a dune (FR−N and FR−S respectively) and with soil prepared with a plough on the ridge of a small aeolian mound (LPZ). On each plot a soil pit was dug and soil samples were taken from distinguished horizons for laboratory analyses. Besides, from April to December of 2013, at interval of ca. two weeks, soil temperature was measured at the depths of 3, 10, 25 and 50 cm. To estimate daily amplitudes of temperature in topsoil on the studied plots, in a sunny summer day (23.08.2013) the temperature was additionally measured from 5 a.m. to 9 p.m. with an hourly interval. These measurements were taken at the two upper depths (3 and 10 cm). Despite the fact that soil surface was distinctly darker for belts prepared with a mill than in trenches prepared by a plough, soil temperatures were almost regularly lower in FR−N and in FR−S than in LPZ. This concerns all the investigated depths. The differences were explained by much higher moisture of soil material in belts what involves higher thermal capacity and with that slower heat of a soil, as well as causes higher losses of thermal energy for evaporation. Another agent explaining this was indicated to be related to high porosity of materials found in the belts. Namely, especially in dry periods, high volume of soil pores are filled on the FR plots with air what impedes heat transfer in a soil. It was concluded that stated in a previous study worse growth of pines planted in milled belts than in tranches prepared with a plough was unlikely related to differences in soil thermal conditions. Thus, differences in growth dynamics of young pines in plots with site prepared by the two studied methods are caused by other reasons rather as primarily other competitive impact of weeds and differences in soil water conditions occurring at root system of young trees.
    Źródło:
    Sylwan; 2016, 160, 11; 923-932
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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