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    Wyświetlanie 1-4 z 4
    Tytuł:
    Threat of small midfield ponds on Weltyn Plain
    Autorzy:
    Gamrat, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/24588.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    landscape change
    intensive cultivation
    agricultural region
    Weltyn Plain
    fertilization
    Polska
    threat
    midfield pond
    mineral fertilizer
    eutrophication
    Źródło:
    International Agrophysics; 2006, 20, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Concentration of heavy metals in the agricultural soils of the Lublin Region and Poland
    Autorzy:
    Lipinski, W
    Terelak, H.
    Stuczynski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1448750.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    soil pollution
    Polska
    soil
    concentration
    soil property
    degraded ecosystem
    Lublin region
    agricultural soil
    anthropogenic ecosystem
    heavy metal
    Opis:
    The paper characterises total concentrations of Cd, Cu, Ni, Pb, Zn in the surface layers (0-20 cm) of agricultural soils in Poland (48620 soils samples) and Lublin region (3829 soil samples). The results for Lublin region are expressed in terms of the degree of metal pollution as compared to contamination in the rest of the country. The average concentration of Cd, Cu, Ni, Pb and Zn (in mg kg-1 of soil) in the A horizon of agricultural soils in Poland and in Lublin region (values in parenthesis) are as follows: 0.21 (0.17); 6.5 (4.9); 6.2 (6.6); 13.6 (10.7); 32.4 (23.3). About 79% of the agricultural soils in Poland are characterised by a natural (0°) content of heavy metals while 17.6% contain elevated level (10) of these metals. In the Lublin region it is 91.9% and 6.7%, respectively. About 3% of the Polish soils (1.4% in the Lublin region) exhibit various degrees of contamination with heavy metals. This includes heavy (IV0) and very heavy pollution (V0) which is found in up to 0.4% of the agricultural land and up to 0.2% in the Lublin region.
    Źródło:
    Acta Agrophysica; 2001, 51; 243-253
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of soil inundation on its properties in the Region of Swiecko during summer flooding
    Autorzy:
    Drzymala, S
    Spychalski, W.
    Rybczynski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1401878.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    flood
    agricultural land
    Fluvisol
    Polska
    Swiecko Region
    disaster flood
    summer flood
    soil property
    soil inundation
    Odra River
    heavy metal
    Opis:
    The present experiments were earned out pn the soilrf of the Rybocice polder near Swiecko, which was purposefully flooded with waters of the Odra river during the summer flood of' 1977 that causet complete destruction of crops and meadow sward. The flooded areas remained under water for more than 30 days. The dominant soils found in this area are river alluvial soils (Fluvi- sols) of varying texture. Rceause of their location and poorly operating drainage system, the discussed soils are periodically too wet by nature or water-logged. In the spring (March/April) of 1998 the ground water table occurred at the depth of 30 cm on damaged grasslands and at 90 cm on some arable Holds. The content of organic carbon ranged from 0.7 to 3.2% in horizon A with depth of approximately 30 cm. Soil reaction was found to vary considerably - from pH (KCI) 4.2 to pH 7.6. Long purposeful inundation with flood waters was not found to have caused significant negative effects on chemical properties of the examined soils. No noticeable contamination with heavy metals (Pb„ Cu, Zn, Cd, Cr and Mn) or polieyclic aromatic hydrocarbons (PAH) was observed. Bulk density in this region, without any treatment from the period of flooding to the spring of 1998 was approximately 1.60 Mg/m3 as compared with 1.40 Mg/m3 on the field cultivated (ploughed) in spring and sown with spring cereal. The mean crop yield in 1998, when appropriate agro-techniques were applied, did not vary significantly from the long-term averages.
    Źródło:
    Acta Agrophysica; 2000, 35; 61-67
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microelement contents in arable soils of the Upper Silesia
    Autorzy:
    Jasiewicz, C
    Sendor, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1450107.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    manganese
    iron
    arable soil
    Upper Silesian region
    extraction
    microelement
    soil
    content
    soil property
    zinc
    copper
    degraded ecosystem
    anthropogenic ecosystem
    agricultural chemistry
    Opis:
    In the present paper arable soils of the Upper Silesia were evaluated as to copper, zinc, manganese and iron contents, determined in the same extract, i.e. 1 M dm-3 HCl. The studies comprised 20 points in the vicinity of Sosnowiec and 20 points from near Zawiercie. Soil abundance in the available forms of microelements was assessed on the basis of the limiting numbers suggested by the Institute of Soil Science and Plant Cultivation. Soils of Zawiercie and Sosnowiec belonged to those with high contents of zinc in all the cases; in the majority of objects these were the soils with medium contents of copper and manganese. In half of the cases, the soils were classified as possessing low iron content, and in the remaining half as having medium iron content.
    Źródło:
    Acta Agrophysica; 2001, 51; 231-235
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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