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Wyszukujesz frazę "Lasota, E." wg kryterium: Autor

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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:
    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:
    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:
    Wymagania troficzne wybranych gatunków krzewiastych występujących w lasach
    The trophic requirements of selected underwood species occurring in forests
    Autorzy:
    Lasota, J.
    Błońska, E.
    Wanic, T.
    Zwydak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1317349.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    krzewy lesne
    jarzab pospolity
    Sorbus aucuparia
    kruszyna pospolita
    Frangula alnus
    leszczyna pospolita
    Corylus avellana
    jalowiec pospolity
    Juniperus communis
    czeremcha zwyczajna
    Padus avium
    trzmielina zwyczajna
    Euonymus europaeus
    bez czarny
    Sambucus nigra
    wymagania glebowe
    preferencje siedliskowe
    forest shrubs
    soil requirements
    forest sites
    plant communities
    Opis:
    The subject of this study were soil requirements of common woody shrubs, which may be part of the forest understory (Sorbus aucuparia L., Frangula alnus Mill., Corylus avellana L., Juniperus communis L., Padus avium Mill., Euonymus europaea L., Sambucus nigra L.). We focused on phytocenoses in the vicinity of natural forests in reserves and national parks of Polish lowlands and defined optimal types and subtypes of soil with trophic variations for each underwood species. The range of trophism for each species of shrub was determined using specific physicochemical properties of the soils, while soil quality was assessed using the Soil Site Index (SIG) (Bro¿ek et al. 2011). The ecological requirements of the before-mentioned underwood species were linked with forest typology as well as natural vegetation and they showed different soil requirements. Here we report significant differences in particle size and dynamics of organic matter decomposition in soils associated with these underwood species.
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 2; 181-191
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wybrane wskaźniki różnorodności biologicznej na tle cech utworów glebowych w wyżynnym borze jodłowym Abietetum albae
    Biodiversity indexes in relation to soil properties in upland fir forests (Abietetum albae)
    Autorzy:
    Lasota, J.
    Wiecheć, M.
    Błońska, E.
    Brożek, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1292427.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    siedliska lesne
    wyzynny jodlowy bor mieszany
    roznorodnosc biologiczna
    wskazniki roznorodnosci
    czynniki siedliska
    gleby lesne
    wlasciwosci chemiczne
    wlasciwosci fizyczne
    forest sites
    biodiversity indexes
    soil properties
    Abietetum albae
    Opis:
    The aim of this study was to present the relationship between soil properties and biodiversity indexes in upland fir (Abies alba) forest associations (Abietetum albae). Our study was conducted in six areas representing the growth conditions of upland fir forests and the research plots were located in the Roztoczański and Świętokrzyski National Parks as well as Przedbórz, Radomsko, Piotrków and Janów Lubelski Forest District. On every plot, the topography was described, soil cores were examined and samples for laboratory analysis were taken. The following characteristics were determined for the soil samples: pH, C, N, Ca, Mg, Na and K content, particle size, exchangeable acidity, aluminum content and hydrolytic acidity. Additionally, enzyme activity in the soil samples (urease and dehydrogenase) was measured. In each test area, the stand characteristics were measured (diameter at breast height and height) floristic characteristics were described and the biodiversity indexes (Shannon, Simpson and Margalef indexes) were calculated. Different soil types (Gleysols, Brunic Arenosols, Gleyic Podzols and Hyperdistric Cambisols) were recorded for the investigated forest stands and the soils were categorized according to soil texture, C content, enzyme activity and different humus types (moder-mor, moder, moder-mull). The upland mixed coniferous forest sites were characterized by lower biodiversity indexes (2,6 Shannon index; 0,72 Simpson index; 4,9 Margalef index) while the upland mixed broadleaf forest sites showed higher indexes (3,3 Shannon index; 0,87 Simpson index; 9,4 Margalef index). The site index obtained for the fir stands confirmed these results.
    Źródło:
    Leśne Prace Badawcze; 2017, 78, 2
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rola uziarnienia gleb w ocenie jakości siedlisk górskich
    The use of particle size distribution of soils in estimating quality of mountain forest sites
    Autorzy:
    Lasota, J.
    Błońska, E.
    Zwydak, M.
    Wanic, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1312582.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    gleboznawstwo lesne
    siedliska lesne
    siedliska gorskie
    jakosc
    gleby lesne
    uziarnienie gleby
    forest soil
    particle size distribution
    mountain forest sites
    Opis:
    The physical and chemical properties of soil are the basic features that are used in the assessment of mountain sites. The aim of this study was to produce a simple key for classifying forest sites in mountain areas using soil particle size distribution. 200 plots (standard typological space) were selected for examination, most of which are typical of the Carpathians – being dominated by flysch rock. A few plots were located in the Sudety and Tatra Mountains, which have a different surface geology, mostly metamorphic rock and granite. The study proved that soil properties (reaction, base saturation, content of base cations, organic carbon and nitrogen) are helpful in distinguishing and assigning soils to particular site types. The particle size distribution of forest mountain sites separated into different categories in terms of productivity. These results can be used to improve the classification of forest mountain sites.
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 3; 253-262
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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