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Wyświetlanie 1-4 z 4
Tytuł:
Warunki glebowe eutroficznych lasów jodłowych Beskidu Niskiego oraz Sądeckiego
Soil conditions of eutrophic fir forest stands in Beskid Niski and Sadecki
Autorzy:
Lasota, J.
Błońska, E.
Zwydak, M.
Powiązania:
https://bibliotekanauki.pl/articles/989899.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gory
Beskid Niski
Beskid Sadecki
lasy jodlowe
gleby lesne
gleby eutroficzne
wlasciwosci fizykochemiczne
wlasciwosci chemiczne
forest sites
soil properties
fir stands
Opis:
The paper presents the properties of soils of eutrophic fir forest stands in lower montane zone in Beskid Niski and Beskid Sądecki Mts. (southern Poland). Efforts were made to put some order in the issues related to the site system, in which the fir plays a dominant role. The study was conducted in 10 study sites reflecting the living conditions of eutrophic silver fir forest. On each plot the topography conditions were described, soil pit was done and samples for laboratory analysis were taken. We determined the following soil characteristics: pH, the content of C and N, particle size, the contents of Ca, Mg, Na and K, exchangeable acidity, aluminum content and hydrolityc acidity. Additionally, diameter at the breast height and height of firs were measured. Cambisols (Epidystric, Hyperdistric and Eutric) are soils typical for eutrophic fir forest stands. The study confirmed that the eutrophic fir forests occupy mainly moderately cool slopes: north, east and north−east. The eutrophic fir forests prefer the lower parts of the slopes or low hills. Eutrophic nature of the soil occupied by the fir forests confirms the quality of accumulated humus. The mull humus type was found the most frequently. Only in two cases moder humus type was noted. The advantageous properties of humus−mineral horizon reflects decomposition level of organic matter expressed as the proportion C/N (range from 11.2 to 19.1). Particle size of Cambisols of eutrophic fir forest stand was very diverse and was associated with the nature of the parent material. Fertility of the soils was reflected in the trophic soil index for mountain area (SIGg=30−37), which was confirmed by the high site index of these stands.
Źródło:
Sylwan; 2015, 159, 09; 767-777
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kierunki doskonalenia metod rozpoznawania siedlisk leśnych
Improvement methods in forest site diagnosis techniques
Autorzy:
Brożek, S.
Zwydak, M.
Wanic, T.
Gruba, P.
Lasota, J.
Powiązania:
https://bibliotekanauki.pl/articles/1015942.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
siedliska lesne
gleby lesne
wlasciwosci fizykochemiczne
lesnictwo
oznaczanie
siedliskoznawstwo lesne
forest site classification
soil properties significance
expert system
discriminant analysis
Opis:
On 127 experimental plots were classified into different forest site types according to vegetational criteria, 16 main soil properties were analysed and their content in a 100 × 100 × 150 cm soil lump was calculated. The expert system and the linear discriminant analysis showed different soil properties and their groups enabling stronger or weaker division of the examined sites into forest site types. The content of 0.1−0.02 mm fraction, the content of <0.02 mm fraction, the concentration of H+ ions as pH reaction in H20 and the content of mobile N were pointed to as those which better distinguish coniferous forest (B) from mixed coniferous forest (BM), mixed coniferous forest from mixed broadleaved forest (LM) and mixed broadleaved forest from broadleaved forest (L). The other soil properties in the expert system showed a weaker strength in differentiating the examined sites into different forest site types according to vegetational criteria.
Źródło:
Sylwan; 2007, 151, 02; 26-34
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relacje pomiędzy aktywnością enzymatyczną a właściwościami gleb i sposobem użytkowania
The relationship between soil properties, enzyme activity and land use
Autorzy:
Błońska, E.
Lasota, J.
Zwydak, M.
Powiązania:
https://bibliotekanauki.pl/articles/1293541.pdf
Data publikacji:
2017
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
gleby lesne
uzytkowanie gleb
wlasciwosci fizykochemiczne
enzymy glebowe
dehydrogenazy
ureaza
aktywnosc enzymatyczna
forest soil
dehydrogenase activity
urease activity
land use
Opis:
The aim of this study was to assess the effects of different types of land use (forest, tillage and pasture) on soil properties, especially enzymes activity. Our investigation was carried out on 53 research plots with 11 plots in broadleaved forest stands, 12 plots in mixed broadleaved stands, 10 plots in mixed coniferous stands, 9 plots on tillage and 11 plots on pasture. The soil samples were collected from a depth of 0–15 cm after removing the organic horizon. Contents of organic carbon and nitrogen, pH and soil texture were investigated. Furthermore, dehydrogenase and urease activity were determined. Significant differences in the enzyme activity between forest and agricultural soils were observed, thus demonstrating that enzyme activity is influenced by the organic matter content of the soil. The highest enzyme activity was recorded in the forest soil within broadleaved stands, whilst the lowest activity was found in tillage soil, because tillage soil contained significantly less organic matter. High enzymatic activity of pasture soils is the combined result of vegetation type and the lack of plowing.
Źródło:
Leśne Prace Badawcze; 2017, 78, 1
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warunki glebowe świerczyny nawapiennej (Polysticho-Piceetum) w górnej części regla dolnego Tatr
Soil conditions of spruce forest on limestone (Polysticho-Piceetum) in the upper part of the lower montane zone in the Tatra Mts.
Autorzy:
Lasota, J.
Blońska, E.
Zwydak, M.
Powiązania:
https://bibliotekanauki.pl/articles/989584.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
siedliska lesne
Tatry
regiel dolny
swierczyna nawapienna
zespol Polysticho-Piceetum
warunki siedliskowe
warunki glebowe
gleby lesne
uziarnienie gleby
wlasciwosci fizykochemiczne
wlasciwosci sorpcyjne
forest sites
soil properties
norway spruce
limestone
Opis:
The aim of this paper is to present the properties of soils and topography conditions of Norway spruce forests growing on the limestone (Polysticho−Piceetum) in the upper part of the lower montane zone. The study was conducted in the Tatra Mts. (southern Poland) on six study plots reflecting the living conditions of spruce forest on limestone. On each plot the topography conditions were described, soil pits were dug and samples for laboratory analysis were collected. The following characteristics were determined in the soil samples: pH, the content of C and N, particle size, the content of Ca, Mg, Na and K, exchangeable acidity, aluminum content and hydrolityc acidity. For each study plot the stand characteristics were measured (diameter at breast height and height). The Soil Trophic Index for mountain areas (SIGg) was calculated on the basis of <0.02 mm fraction content, the sum of exchangeable base cations, soil acidity and the total content of N and C organic in the humus−mineral horizon. Polysticho−Piceetum stands in the upper part of the lower zone between 1000 and 1200 m above sea level developed in the unique geomorphological and geological conditions. They covered very shallow weathered fragments of limestone or steep slopes with fine−grained scree of carbonate rocks. Rendzic Hyperskeletic Leptosols (Humic) and Calcaric Lithic Leptosol are soils typical for analysed spruce stands. Character of site was reflected in the SIGg values that ranged between 15 and 20. The moder−mull and tangel−mor humus type was found on the majority of the investigated plots. Low fertility of soil was confirmed by the site index of analysed stands (IVth and Vth class).
Źródło:
Sylwan; 2016, 160, 05; 407-415
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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