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    Wyświetlanie 1-6 z 6
    Tytuł:
    Akumulacja węgla organicznego w glebach różnych typów siedlisk leśnych
    Organic carbon accumulation in soil of different forest site types
    Autorzy:
    Zwydak, M.
    Błońska, E.
    Lasota, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/987114.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    siedliska lesne
    warunki siedliskowe
    gleby lesne
    wegiel organiczny
    akumulacja wegla
    zapas wegla w glebie
    soil organic matter
    carbon stock in soils
    forest soil properties
    type of forest site
    Opis:
    The objective of the paper was to estimate i) the carbon accumulation in soils of different forest site types as well as ii) its changes with regard to the depth of the soil profile. The investigation was carried out in the Przedbórz Forest District (central Poland) on 43 study plots, including different forest sites – fresh coniferous forest (Bśw), fresh mixed coniferous forest (BMśw), fresh mixed broadleaved forest (LMśw) and fresh broadleaved forest (Lśw). On each plot soil pits were dug and samples for laboratory analysis were collected. The following characteristics were determined in the soil samples: pH, the content of organic C and total N, particle−size distribution, the content of exchangeable Ca, Mg, Na and K, and hydrolityc acidity. The obtained results demonstrated that soils of Bśw, BMśw and LMśw sites characterized by higher carbon accumulation in surface horizon to 50 cm depth compared to the most eutrophic sites (Lśw). The rate of carbon accumu− lation in forest soils depend on the humus type which is connected with species composition of stands. Domination of Scots pine in stand affects the formation of ectohumus and leads to higher C accumulation in surface horizons on Bśw, BMśw and LMśw sites. In soils of Bśw, BMśw and LMśw sites carbon stored in the horizons to 50 cm constitutes 64−94% of the total carbon accu− mulated, while on the eutrophic sites (Lśw) this share amounts to 39−72%. The value of the total carbon stock in soils of fresh forest sites can be estimated on the basis of carbon stock in horizons to 50 cm depth.
    Źródło:
    Sylwan; 2017, 161, 01; 62-70
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rozmieszczenie materii organicznej i azotu we frakcjach granulometrycznych poziomów genetycznych gleby brunatnej wyługowanej Lasu Kabackiego
    Distribution of organic matter and nitrogen in the particle size fractions of genetic horizons in Dystric Cambisols in the Kabacki Forest
    Autorzy:
    Brogowski, Z.
    Chojnicki, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/991709.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gleboznawstwo lesne
    gleby brunatne wylugowane
    poziomy glebowe
    frakcje granulometryczne
    materia organiczna
    zawartosc materii organicznej
    azot
    zawartosc azotu
    stosunek wegla do azotu
    Las Kabacki
    soil organic matter
    nitrogen
    granulometric fractions
    Opis:
    Organic matter and nitrogen content was analysed in genetic horizons of Dystric Cambisols in the Kabacki Forest (Warsaw, central Poland). Particle size fractions in investigated soil indicated the following contribution in binding of organic matter: 0.1−0.02 mm – 7.6%, 0.02−0.01 mm – 13.2%, 0.01−0.005 mm – 18.8%, 0.005−0.002 mm – 21.9% and <0.002 mm – 37.8%. Sand fractions with 1−0.1 mm particles accumulate only 0.7% of the total organic matter content. Nitrogen showed similar distribution among the particular fractions. Horizons A and ABbr to the depth of 25 cm accumulate 75.8% organic matter, horizons located at the depth of 25−100 cm − 14.6%, whereas the parent rock lying at 100−125 cm on poorly permeable glacial till gathers 9,9% of the total organic matter accumulated in the entire profile. The leaching pedogenetic process and the particle size diameter significantly influenced the translocation of organic matter and nitrogen in the studied soil profile.
    Źródło:
    Sylwan; 2013, 157, 06; 470-480
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Właściwości próchnic gleb tworzących się w warunkach zalesionego zwałowiska po odkrywkowej kopalni siarki
    Properties of humus in soils formed on afforested dumping ground of the sulphur mine
    Autorzy:
    Woś, B.
    Pietrzykowski, M.
    Krzaklewski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/991360.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    tereny pogornicze
    zwalowiska pogornicze
    rekultywacja lesna
    zalesianie
    zwalowiska zrekultywowane
    gleby
    prochnica
    wlasciwosci chemiczne
    odczyn gleby
    kwasy huminowe
    kwasy fulwowe
    post−mining sites
    afforestation
    soil organic matter
    fulvic acids
    humic acids
    Opis:
    The paper presents fractional composition and optical properties of the soil organic matter (SOM) developed on afforested dumping ground of the sulphur strip mine in Piaseczno near Tarnobrzeg (southern Poland). Research was designed for different soil−substrates and trees species. Soil−substrate type has the major impact on SOM characteristics at current stage of soil development. Black alder characterized with the strongest influence on SOM quality among species introduced on the dumping ground.
    Źródło:
    Sylwan; 2014, 158, 12; 893-900
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Właściwości materii organicznej gleb śródleśnych nisz źródliskowych w dolinie Kamiennej (Pomorze Środkowe)
    Properties of soil organic matter in soils of mid-forest spring niches in the Kamienna Creek valley (Middle Pomerania)
    Autorzy:
    Jonczak, J.
    Parzych, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/989393.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Pomorze Srodkowe
    dolina Kamiennej
    nisze zrodliskowe
    gleby lesne
    materia organiczna
    stopien rozkladu masy torfowej
    odczyn gleby
    zawartosc wegla organicznego
    zawartosc azotu ogolnego
    sklad frakcyjny
    absorbancja promieniowania
    headwater areas
    histosols
    soil organic matter
    Opis:
    The paper presents the result of the studies on the properties of soil organic matter in Sapric Histosols associated with mid−forest spring niches in the valley of the Kamienna Creek, left bank tributary of the Słupia River (northern Poland). We sampled five soil profiles at the depth of every 10 cm until the mineral bed was reached. We analyzed degree of peat mass decomposition, reaction and the content of organic matter, total organic carbon and total nitrogen. Fractional composition of soil organic matter was analyzed with Schnitzer method. We measured the absorbance at wavelenghts of 280, 465 and 665 nm in 0.01% alkaline solutions of humic acids and the absorbance ratios A2/6, A2/4 and A4/6 were calculated based on these data. The studied soils consisted of strongly and moderately decomposed alder and alder−sedge peat, which contained 309.7−829.0 g/kg of organic matter. The soils were moderately abundant in nitrogen and were characterized by low variability in pH (pHH2O 5.6−6.9). Soil organic matter was dominated by humins, contribution of which ranged from 71.5 to 91.9%. Humic acids constituted 4.9−22.1%, fulvic acids 1.9−6.7% and the most labile organic substances extracted during decalcification of samples (Cdek) – 0.2−1.1% (tab. 2). The observed relatively low degree of humification and quantitative predominance of humic acids over fulvic acids are features typical for riparian organic soils. High values of absorbance ratios of alkaline solutions of humic acids (tab. 3) indicate predominance of aliphatic structures over aromatic in their molecules, which is typical for weakly humified organic substances.
    Źródło:
    Sylwan; 2016, 160, 02; 135-143
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dyfuzja glebowego CO2 i dekompozycja materii organicznej na zrębach z różnym sposobem przygotowania gleby
    Diffusion of soil CO2 and decomposition of organic matter on felled areas using different soil preparation methods
    Autorzy:
    Skłodowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009639.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    materia organiczna
    gleby lesne
    zreby
    oddychanie
    przygotowanie gleby
    lesnictwo
    rozklad materii
    aktywnosc biologiczna
    soil respiration
    organic matter decomposition
    soil preparation
    forest cutter
    active plough
    deep furrowing plough
    manual ploughing
    Opis:
    Soil respiration and organic matter decomposition in the soil prepared by four different methods was investigated. Soil was prepared with the cutter, active plough, deep furrowing (strips) plough and manual disk ploughing on areas felled in summer or winter, with and without retained branch piles, as well as in the clumps of old−growth and young−growth stands. The soil respiration rate increased following stand removal, while it was reduced after soil preparation process. The highest CO2 respiration and organic matter decomposition were noted in the variants with the soil cutter or manual disk plough, while the lowest – in the variant with deep furrowing (strips) plough.
    Źródło:
    Sylwan; 2009, 153, 12; 805-813
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Grzyby ektomykoryzowe w obiegu węgla w ekosystemach leśnych
    Ectomycorrhizal fungi and carbon dynamics in forest ecosystems
    Autorzy:
    Kałucka, I.
    Jagodziński, A.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/994508.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    ekosystemy lesne
    obieg wegla
    materia organiczna
    gleby
    grzyby ektomikoryzowe
    biomasa lesna
    carbon sequestration
    carbon flux
    organic matter
    soil carbon
    npp
    ecm fungi
    mycorrhiza
    forest biomass
    Opis:
    In boreal and temperate forests fungi play a particularly important role, since most trees form a symbiotic relationship with many species of ectomycorrhizal (ECM) fungi, providing them with assimilates in exchange for minerals. Mycorrhiza is considered one of the most significant factors affecting functioning of forest ecosystems, and in particular the processes of carbon cycling and storage. ECM fungi are involved both directly through carbon accumulation in the mycelial system, and indirectly through their influence on tree biomass production and organic matter decomposition. The amount of carbon transferred to ECM fungi usually varies from 10 to 25 or even 50% of the host's net photosynthesis, thus they are a group of organisms that significantly affect carbon flow into the soil. Most of that carbon is built into the mycelial system and its structures (fungal parts of ECM roots, extramatrical hyphae and rhizomorphs, sporocarps, etc.). Carbon allocation to the underground part of trees, and thus to ECM roots, changes with stand age and stand development phase. The biomass of active ECM roots and mycelium usually reaches its maximum in young stands, in the canopy closure phase; frequently, this is also true for the standing biomass of fruit bodies. A large share of ECM sporocarps in the forest carbon budget and high levels of ECM vegetative mycelium respiration are considered to be among the main pathways for the release of CO&sub2. from forest soil, indicating a significant role of ECM fungi in fast carbon flow via forest ecosystems. On the other hand, dead ECM fine roots and extramatrical mycelia are a very rich and important pool of sequestered carbon in the soil.
    Źródło:
    Sylwan; 2013, 157, 11; 817-830
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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