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Wyświetlanie 1-3 z 3
Tytuł:
Rozkład pionowy aktywności enzymatycznej gleb różnych siedlisk leśnych
Vertical distribution of enzymatic activity in soils of different forest habitats
Autorzy:
Olszowska, G.
Powiązania:
https://bibliotekanauki.pl/articles/973213.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
profile glebowe
leśnictwo
siedliska leśne
bor mieszany świeży
bor świeży
las mieszany świeży
las świeży
gleby leśne
aktywność enzymatyczna
rozkład pionowy
orest sites
soil profiles
enzymatic activity
Opis:
Vertical distribution of enzymatic activity in the soil profile was studied in Scots pine (Pinus sylvestris) and oak (Quercus robur) stands located in southwestern Poland. The enzymatic activity for the most part is accumulative in upper layers of soil: on coniferous site type in Ofh and mineral (0−10 cm) layer, and on broadleaved site type in the mineral (0−10 cm) layer.
Źródło:
Sylwan; 2010, 154, 06; 405-411
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biochemiczna aktywność gleb różnych siedlisk leśnych
Biochemical soil activity of different forest site
Autorzy:
Olszowska, G.
Powiązania:
https://bibliotekanauki.pl/articles/989600.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gleboznawstwo lesne
siedliska lesne
siedlisko boru mieszanego swiezego
siedlisko lasu mieszanego swiezego
gleby lesne
aktywnosc biochemiczna
aktywnosc enzymatyczna
wlasciwosci chemiczne
forest site type
enzymatic activity
soil chemistry
Opis:
The aim of the study was to determine the enzymatic activity and chemical properties of soil in selected stands of different age classes on two forest site types: fresh mixed coniferous forest (BMśw) and fresh mixed deciduous forest (LMśw). The investigations were carried out in Nowe Ramuki Forest District in 2013−2015 located in the central part of Warmińsko−Mazurskie administration district Poland. In organic and humus horizons following parameters were described: acidity in 1M KCL, content of nitrogen, carbon and exchangeable alkaline cations (Na+, K+, Ca2+ and Mg2+) as well as hydrolytic acidity. Enzymatic investigation included the measurements of urease, asparaginase, acid phosphatase and dehydrogenase activity. Content of C and N, sum of base cations (S), hydrolytic acidity (Hh), cation exchange capacity (PWK), base saturation percentage were significantly higher in organic than humus horizon. Enzymatic activity was connected with the content of organic matter, what resulted in higher activity in organic than humus horizon independently of site type and stand age. The concentration of organic carbon (C), nitrogen, C/N ratio, hydrolytic acidity and cation exchange capacity was higher on BMśw than LMśw site type. Activity of urease, acid phosphatase and dehydrogenase was lower in soils of LMśw than BMśw site type. Lower enzymatic activity may suggest lower intensity of decaying process of organic matter in these soils. Significant correlations between enzymes and chemical soil parameters were found. Significant correlation between enzymatic activity and soil chemical properties shows that biochemical parameters can be used as indexes of their productivity. Investigation of biochemical reaction intensity can be complement to soil chemical studies usually used in forestry.
Źródło:
Sylwan; 2016, 160, 08; 666-673
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Struktura zbiorowisk grzybów mykoryzowych po pożarze drzewostanu sosny zwyczajnej na siedlisku boru suchego
Structure of post-fire ectomycorrhizal communities of Scots pine stand in a dry coniferous forest habitat
Autorzy:
Hilszczańska, D.
Gil, W.
Olszowska, G.
Powiązania:
https://bibliotekanauki.pl/articles/980282.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
siedlisko boru suchego
drzewostany sosnowe
pozary lasow
tereny popozarowe
sosna zwyczajna
Pinus sylvestris
mikoryza
grzyby mikoryzowe
zbiorowiska grzybow
struktura zbiorowisk
roznorodnosc gatunkowa
forest fire
mycorrhiza
fungi
scots pine
coniferous forest habitat
Opis:
Ectomycorrhizal communities associated with Pinus sylvestris growing on dry coniferous forest habitat after the fire were studied. In order to investigate the fire effect on ectomycorrhizal fungi and changes of soil parameters in the upper (0−15 cm) soil layer three study plots were established: 1 – the control, 2 – fire zone left for artificial renewal (with the economic method of renewal) and 3 – fire zone left for natural renewal. The analysis of mycorrhizae revealed presence of eight mycorrhizal fungi on Scots pine roots and the value of Shannon−Wiener species diversity index H’ equaled to 1.76. The most abundant were mycorrhizae formed by Tomentella feruginea (31.7%) and Hebeloma crustuliniforme (23.3%). The fraction of Paxillus involutus and Rhizopogon sp. mycorrhizae was 16.7% and 13.0%, respectively. The lowest was the number of Thelephora terrestris mycorrhizae (only 1.7%). At the site 2, number of mycorrhizal fungi diminished to five and Shannon−Wiener species diversity index was also lower (1.37). The predominant were mycorrhizae of Cenococcum geophilum (26.7%) and P. involutus (21.7%), whilst the lowest were mycorrhizae of Suillus luteus (1.7%). Although at the third site the number of ectomycorrhizal fungi was the same as on the site 2, the dominance of Thelephora terrestris (66.7%) caused that Shannon−Wiener’s species diversity index was the lowest (1.05). Mycorrhizae of Paxillus involutus and Wilcoxina mikolae were characterised by similar abundance (13.3% and 11.7%, respectively). The lowest number of mycorrhizae was observed for Tomentella sp. (3.3%). Analysis of soil parameters showed an increase of pH on burnt sites in comparison to the control. The soil of burnt sites were also characterised by lower value of C and C/N ratio than the soil on the control treatment. The result showed that ubiquitous mycorrhizal fungi, such as T. terrestis, are able to persist on roots in changed soil environment with low content of nutritions.
Źródło:
Sylwan; 2019, 163, 01; 71-79
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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