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    Wyświetlanie 1-3 z 3
    Tytuł:
    Above and Below-Ground Decomposition of Leaf Litter in Leucaena leucocaephala Plantation of Federal University of Agriculture, Abeokuta (FUNAAB), Nigeria
    Autorzy:
    Oladoye, A. O.
    Oyebamiji, N. A.
    Ayoku, Y. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1077278.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Forest plantation
    Leucaena leucocaephala
    ground level
    leaf litter
    mass loss
    nutrient contents
    release pattern
    Opis:
    A decomposition study was carried out on the leaf litters of Leucaena leucocaephala to determine the rate of decomposition of its leaves with respect to its placement on above or below the ground levels in L. leucocaephala plantations of the Federal University of Agriculture, Abeokuta, Nigeria. In the study, leaf litter were randomly handpicked from the forest floor, of this, 40 g each were weighed into thirty (30) litter bags of 2 mm mesh size in which 15 were randomly placed on the forest floor (above-ground) and the remaining 15 were buried in the soil between 5-10 cm depth (below-ground). Data were analysed using descriptive statistical techniques such as percentage, while inferential statistics (simple linear regression) was used to determine relationships between various nutrient elements and days of decomposition (DOD). We noted that the percentage of mass loss of leaf litter increased with time in days after deposit and was higher (29.93%, 32.43 % and 33.25%, 41.65%) at 80 to 100 days of placement above- and below-ground, respectively. Moreover, the exchangeable basic cations and chemical compositions of litters were not consistent with respect to DOD. Regression analysis of nitrogen (N) and organic carbon (OC) showed that these elements significantly contributed to the high (86 %) overall decomposition of litter (p < 0.05, p < 0.01) below-ground level. It is, therefore, concluded that decomposition of leaf litters occur faster below ground than above ground within the forest plantation.
    Źródło:
    World News of Natural Sciences; 2019, 23; 211-220
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamics of Cu, Mn, Ni, Sr and Zn release during decomposition of four types of litter in headwater riparian forests in northern Poland
    Autorzy:
    Jonczak, J.
    Parzych, A.
    Sobisz, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/1317603.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    heavy metal
    strontium
    black alder
    leaf litter
    decomposition
    dynamics
    copper
    manganese
    nickel
    zinc
    headwater area
    riparian forest
    Polska
    leaf litter decomposition
    headwater areas
    heavy metals
    Opis:
    The aim of the study was to compare the dynamics of Cu, Mn, Ni, Sr and Zn release during decomposition of leaves of Black alder (native material), Norway maple, Red oak and European beech (exogenous material) in the area of headwater riparian forests along the upper course of the Kamienna Creek (Northern Poland). Litter bag method was used in the experiment. Initial materials differed in terms of their chemical composition. Cu, Mn, Ni, Sr and Zn contents were low in general, and in fact, even a few times lower than limit values for decomposition rate. Different trends in the dynamics of the leaf metal content during decomposition were observed in particular tree species despite the fact, that every materials were exposed in the same site. Release dynamics was strongly affected by the content of metals in initial materials and in topsoil. Accumulation of Cu, Mn and Zn was observed during decomposition of poorest in the elements maple leaves, as well as Ni in alder leaves and Sr in the leaves of maple, alder and oak. In beech leaves we observed intensive leaching of Ni, whereas downward trends in the Cu concentration of beech leaves, as well as Mn and Zn in beech and oak leaves, were related to weight loss of the leaves. In some cases, the dynamics of metal release displayed a more complicated two- or three-stage character (release of Ni from maple and oak leaves; Cu from maple leaves; Sr from alder, maple and oak leaves; and Zn from alder and maple leaves).
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 2; 193-200
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mixed leaf litter decomposition and N, P release with a focus on Phyllostachys edulis (Carriere) J. Houz. forest in subtropical southeastern China
    Autorzy:
    Shi, L.
    Fan, S.
    Jiang, Z.
    Qi, L.
    Liu, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/56692.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    leaf litter
    decomposition
    nitrogen
    phosphorus
    Phyllostachys edulis
    moso bamboo
    tortoise-shell bamboo zob.moso bamboo
    forest
    subtropical area
    China
    Opis:
    As an important non-wood forest product and wood substitute, Moso bamboo grows extremely rapidly and hence acquires large quantities of nutrients from the soil. With regard to litter decomposition, N and P release in Moso bamboo forests is undoubtedly important; however, to date, no comprehensive analysis has been conducted. Here, we chose two dominant species (i.e., Cunninghamia lanceolata and Phoebe bournei), in addition to Moso bamboo, which are widely distributed in subtropical southeastern China, and created five leaf litter mixtures (PE100, PE80PB20, PE80CL20, PE50PB50 and PE50CL50) to investigate species effects on leaf litter decomposition and nutrient release (N and P) via the litterbag method. Over a one-year incubation experiment, mass loss varied significantly with litter type (P < 0.05). The litter mixtures containing the higher proportions (>80%) of Moso bamboo decomposed faster; the remaining litter compositions followed Olson's decay mode well (R2 > 0.94, P < 0.001). N and P had different patterns of release; overall, N showed great temporal variation, while P was released from the litter continually. The mixture of Moso bamboo and Phoebe bournei (PE80PB20 and PE50PB50) showed significantly faster P release compared to the other three types, but there was no significant difference in N release. Litter decomposition and P release were related to initial litter C/N ratio, C/P ratio, and/or C content, while no significant relationship between N release and initial stoichiometric ratios was found. The Moso bamboo-Phoebe bournei (i.e., bamboo-broadleaved) mixture appeared to be the best choice for nutrient return and thus productivity and maintenance of Moso bamboo in this region.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2015, 84, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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