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Wyszukujesz frazę "meadow ecosystem" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Sulphur and heavy metals content in the soil of meadow ecosystems adjoining the metallurgic plant Huta Katowice as an indicator of environment degradation
    Autorzy:
    Kimsa, T
    Pawelko, K.
    Ciepal, R.
    Palowski, B.
    Sliwinska-Wyrzychowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1450127.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    sulphur
    degradation indicator
    soil
    soil property
    environment degradation
    Upper Silesian Industrial Area
    degraded ecosystem
    anthropogenic ecosystem
    meadow ecosystem
    heavy metal
    Opis:
    The content of Cu, Pb, Zn, Fe, Cd and S in the upper soil layer of meadow ecosystems surrounding the steelworks "Huta Katowice" was investigated. Sampling plots were located at a different distance and direction from the plant, but in a similar type of meadow community and soil. Spatial and seasonal variability of the investigated elements content was found. Such results indicate that the investigated area was polluted both by that steelworks and by the industrial plants situated in the Industrial Region of Upper Silesia.
    Źródło:
    Acta Agrophysica; 2001, 51; 101-111
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mutual relations between soil cover and plants in mountainous humid climatic conditions
    Autorzy:
    Wozniak, L
    Powiązania:
    https://bibliotekanauki.pl/articles/1450543.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    mountain area
    meadow
    vegetation
    ecosystem
    chemical composition
    soil cover
    soil-plant relation
    Bieszczady Mountains
    mountain meadow
    soil
    climate condition
    terrestrial ecosystem
    plant
    Opis:
    Specific, humid climate of mountain areas has a great influence on the properties of soils and vegetation, as well as on the mutual relations between these inseparable elements of ecosystems. Research on the interdependence between soils and natural vegetation was carried out on ' the mountain meadows of the Bieszczady National Park. In conditions of the cooler and more humid mountain climate the peculiar character of the soils lies in the presence of organic surface horizon of properties varying considerably from the properties of deeper mineral horizons. This horizon is of great importance in the protection of scarce elements. It prevents pollutants from reaching the ecosystem. It influences the soil water economy. It prevents erosion. This buffer element of the mountain soils requires special protection - in the Bieszczady Mountains the erosion of the mountain meadow soils is only noticeable where the covering vegetation and the organic surface soil horizon were destroyed, e.g. on tourist tracks. The plants of the Bieszczady mountain meadows, together with their direct product - the organic surface soil horizon, prevents the chemical erosion of the mountain meadows, reducing the leaching of many biogenous elements, e.g. calcium.
    Źródło:
    Acta Agrophysica; 2001, 50; 253-261
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Balance of heavy metals [Cd, Ni, Pb] in static fertiliser experiments on grasslands
    Autorzy:
    Curylo, T
    Powiązania:
    https://bibliotekanauki.pl/articles/1448702.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    grassland
    long-term experiment
    balance
    soil
    meadow soil
    mineral fertilizer
    soil property
    degraded ecosystem
    anthropogenic ecosystem
    agricultural chemistry
    heavy metal
    Opis:
    On the basis of results obtained in 2 static experiments conducted on light and heavy soils with differentiated mineral fertilisation, an approximate balance of Cd, Ni and Pb was determined over 20 years of investigations. The experiments included 3 levels of fertilisers and the control plot. Ammonium nitrate, single or triple superhosphate and potassium salt were used for the treatments. Average amounts ofheavy metals introduced with the fertilisers in both experiments over twenty years were as follows: 37-110 g Cd, 63-195 g Ni and 62-202 g Pb ha-1. The balance ofheavy metals over twenty years assumed different values depending on the fertilisation level and soil conditions. However, irrespective of those factors, the balance assumes a negative value. The effect of nitrogen doses on the balance was slight and depended on the site trophicity. On the other hand, increasing doses of phosphorus and potassium treatment decreased the value of the negative balance difference of cadmium and, to a lesser degree, of nickel, but increased the lead balance.
    Źródło:
    Acta Agrophysica; 2001, 51; 189-199
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristics of the meadow hydrogenic soils in Przedmoscie against the background of forming plant communities
    Autorzy:
    Bogacz, A
    Grosdzinska, D.
    Chachula, K.
    Kasowska, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1450407.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    organic matter
    physicochemical property
    physical property
    hydrogenic soil
    chemical property
    plant community
    soil
    meadow soil
    soil property
    melioration
    terrestrial ecosystem
    Opis:
    The aim of this work was to compile characteristics of some selected physical, physico-chemical and chemical properties of the reclaimed hydrogenic soils in the meadow part of the Przedmoście bog in the context of new forming plant communities. Melioration work conducted in this area before the Second World War ended peat accumulation processes. Consequently, drying peat began to disintegrate and mineralise. Analyses of floral lists proved that the existing vegetation replaced the original bog plant communities, which flourished in this area in the past. Descriptions of profiles point to the existence of mixed formations (gyttja, peat) often containing high quantities of CaCO3. Peat formations present in the profiles are usually at the advanced degree of decomposition (H>7) and contain substantial quantities of ash. This high degree of ash content and bulk density results in strong compaction and muddy soil horizons. A low coefficient of C/N showed intense mineralization of organic matter in the upper soil horizons.
    Źródło:
    Acta Agrophysica; 2001, 50; 17-28
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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