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Wyszukujesz frazę "trofizm" wg kryterium: Wszystkie pola


Wyświetlanie 1-3 z 3
Tytuł:
Wpływ odnowienia lasu zrębem zupełnym na trofizm gleb rdzawych na przykładzie Nadleśnictwa Spała
Trophic soil index of the rusty soils affected by clear-cutting in the Spala Forest District
Autorzy:
Jamroz, E.
Weber, J.
Dębicka, M.
Powiązania:
https://bibliotekanauki.pl/articles/990984.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Nadlesnictwo Spala
drzewostany
zrab zupelny
gleby lesne
gleby rdzawe
trofizm gleb
indeks troficzny gleb
forest soils
trophic soil index
forest soil quality
soil organic carbon
Opis:
The paper describes the influence of clear−cutting on the fertility of rusty soils expressed by trophic soil index. Soils in the Spała Forest District (central Poland) were covered by coniferous or mixed coniferous forests. Clear−cutting in acidic and oligotrophic mixed coniferous forests decreased soil fertility and affected an increase of hydrolitic acidity, particularly in Oh and Bv horizons. This type of timber harvest influenced also decrease of organic carbon in the first year after cutting.
Źródło:
Sylwan; 2014, 158, 09; 669-674
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problemy diagnozy troficzności siedlisk leśnych na porolnych glebach aluwialnych
Problems of trophic status diagnosis in the forest habitats on former arable alluvial soils
Autorzy:
Łabaz, B.
Kabała, C.
Bogacz, A.
Powiązania:
https://bibliotekanauki.pl/articles/989599.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gleby porolne
doliny rzeczne
dolina Baryczy
gleby aluwialne
siedliska lesne
trofizm gleb
indeks troficzny gleb
forest site type
soil trophic index
alluvial soils
Opis:
The morphology and properties of the post−arable soils that influence the trophic status of forest habitats on the Barycz river terraces (south−western Poland) were analyzed. The fieldwork included the characterization of the soil, tree layer, and the vegetation of the forest floor, as required for the forest habitat evaluation. In the collected soil samples, a set of physico−chemical analysis was carried out, that included: soil texture, bulk density, pH in KCl and water, total organic carbon, total nitrogen, hydrolytic acidity, base cations, and the content of plant−available phosphorus, potassium, and magnesium. Sandy post−arable soils in the Barycz valley have a thick, double− or triple−layered ploughed humus horizon, and the high stock of humified organic matter, nitrogen, and phosphorus, that emphasizes anthropogenic transformation of soils and differentiates them from the natural soils of river valleys. The diagnosis based on the soil trophic index (SIG) indicates generally lower trophic status (mesotrophic) as compared to the diagnoses based on forest floor vegetation and tree−stand (eutrophic status). The SIG model for the post−agrar moist valley habitats should be supplemented with the factors, which improve the apparent trophic status of sandy soils, including the thick humus horizon (post−ploughing) and shallow table of eutrophic ground water.
Źródło:
Sylwan; 2016, 160, 08; 684-695
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bonitacja drzewostanów sosnowych w południowo-zachodniej Polsce w odniesieniu do typów siedliskowych lasu i taksonów gleb
Site index of Scots pine stands in south-western Poland in relation to forest site types and soil units
Autorzy:
Sewerniak, P.
Powiązania:
https://bibliotekanauki.pl/articles/991498.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany sosnowe
siedliska lesne
bonitacja drzewostanow
typy siedliskowe lasu
gleby lesne
warunki wilgotnosciowe
trofizm gleb
Polska Poludniowo-Zachodnia
site index
pinus sylvestris
tree growth
forest site
soil
Opis:
Forming of site index class of Scots pine (Pinus sylvestris L.) stands in relation to forest site types (including their moisture variants) and soil units (type/subtype and also – in minor extent – geological genesis of soil parent material) was investigated. The research was conducted in the Bolesławiec, Głogów and Oława forest districts (SW Poland) in 348 Scots pine stands. The values of the pine site index got higher with increasing fertility of soil units and better forest site type, but only when plots of sandy soils where concerned. Site index was found to differ significantly between fresh than moisture forest sites and soil units. The study results demonstrated that on fresh soils of sandy texture site index of Scots pine was distinctly related even to minor differences of site properties that concerned both its moisture and fertility. Scots pine, by height growth, does not fully utilize the great nutrient retention of fine textured soils that concerned both fresh and moisture pedons. Fine textured soils should be designed for eutrophic broadleaved tree species planting only, which would enable to fully utilize the trophic potential of such soils. The relation between the site index and geological genesis of sand forming parent material of soils was found. The differences in pine growth on sands of other genesis were assumed to be a result of different sorting and mineral composition of these materials.
Źródło:
Sylwan; 2013, 157, 07; 516-525
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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