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    Wyświetlanie 1-4 z 4
    Tytuł:
    Preliminary assessment of agriculture influence on heavy metal content in bottom sediments of small water reservoirs and in rushes
    Autorzy:
    Szydłowski, K.
    Podlasińska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/100909.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    agriculture
    ecology
    heavy metals
    sediments
    ponds
    Opis:
    The main purpose of the paper was to determine the influence of catchment management on the bottom sediments quality of small water reservoirs as well as to determine toxic metal content in rushes. Samples of bottom sediments were collected in winter 2013 year, form 4 sediment layers (0-5, 5-10, 10-20 and 20-30 cm) at three points along the body of water. The 48 samples were collected. Soil material was prepared according to the procedures used in soil science, the analysis was performed for the fraction with a particle diameter of less than 1 mm. Plant samples from single species aggregations were randomly cut from 5 to 10 locations of 20-50 m2 area. From these samples the average composite sample was prepared. The total content of such elements as Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn was determined by atomic absorption spectrometry (using the Thermo Scientific iCE 3000 series spectrometer) after prior digestion in the mixture (5:1) of concentrated acids HNO3 (65%) and HClO4 (60%). Total Hg content was determined by the AMA 254 analyzer. Between the small water reservoirs adjacent to the areas where organic farming is used, and the reservoirs adjacent to the areas with mineral fertilization there are statistically significant differences in the concentrations of such metals as nickel (layers: 0-5, 5-10, 10-20 and 0-30 cm), as well as cobalt, chromium and iron (in a layer 5-10 cm). It has been found that some plants accumulate higher amounts of heavy metals (average values). Based on obtained results it can be stated that rushes actively captures large amounts of elements reaching studied objects and thereby protect the surface water of the reservoirs from contamination.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2017, III/1; 949-962
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of heavy metal pollution in bottom sediments of small water reservoirs with different catchement management
    Autorzy:
    Podlasińska, J.
    Szydłowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/101221.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    agriculture
    ecology
    heavy metals
    sediments
    ponds
    classification
    Opis:
    The main purpose of this work was to determine the degree of negative impact of heavy metals accumulated in the water sediments to aquatic organisms. Samples of sediments were collected in winter 2013, from 4 layers of sediment (0-5, 5-10, 10-20 and 20-30 cm) at three points along the water reservoir. Sediments were prepared for analysis in accordance with the procedures applied in soil science. The analysis was carried out for the fraction with a particle diameter less than 1 mm. The total content of such elements as Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn, was determined by atomic absorption spectrometry (using the Thermo Scientific iCE 3000 series spectrometer) after digestion in a mixture (5:1) of concentrated acid HNO3 (65 %) and HClO4 (60%). The total Hg content was obtained by using the AMA 254 analyzer. Only the lead content in the analyzed samples of bottom sediments exceeded the contamination value given by polish law (the Regulation of the Minister of Environment). According to the classification of PGI samples of sediments are classified mainly as medium polluted sediments (Class II), with the exception of zinc and lead concentrations (Class III). Due to the value of the indicator of sediments ecological risk (Er) for cadmium, the examined sediments from small water reservoirs no. 1 and 2 should be classified as deposits with a higher rate of environmental contamination risk. The sediments from small water reservoirs no. 3 and 4 belong to the class of a much higher index of contamination risk. On the basis of the PER indicator (a degree of potential envi ronmental risk) the sediments from small water reservoirs located within the area of organic farming can be classified as contaminated by heavy metals to a moderate degree. On the other hand, the analyzed sediments of small water reservoirs no. 3 and 4 were classified as deposits with a severe degree of heavy metal contamination. On the basis of the LAW classification one can say that the bottom sediments of examined ponds were classified into different classes depending on the analyzed chemical element.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2017, III/1; 987-997
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristics of the macro - and microelements in benthic sediments of selected mid-field ponds
    Autorzy:
    Brysiewicz, A.
    Ligocka, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/101069.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    benthic sediments
    mid-field ponds
    macroelements
    microelements
    chemical composition
    Opis:
    The agricultural landscape of Western Pomerania is characterised by frequent occurrence of small, post-glacial water ponds commonly called mid-field ponds. They serve numerous important functions, both with regard to agriculture and ecology. Due to their specific location in the agricultural landscape, they are exposed to permanent and strong anthropic pressure, which often translates into pollution of surface water and benthic sediments with macro-and microelements. This study attempts to assess and determine the level of macro – and microelements in benthic sediments, depending on the type of agricultural production, on the example of selected mid-field ponds. The assessed benthic sediments of both ponds were characterised by varied macro - and microelement levels, depending on the collection site and the depth of their deposition. Based on the performed chemical analyses it was found that both observation points in the pond Żelisławiec were characterised by the highest concentrations occurring in the top layer (0-5 cm), which is related to the fact that there are areas of agriculture in the pond basin with the use of mineral and organic fertilisation and occurrence of higher water erosion. And the other assessed mid-field pond (Stare Czarnowo) showed the highest concentration of microelements in the middle layer, 5-15 cm. Statistical analyses revealed that statistically significant differences were observed only for potassium levels, depending on the type of agricultural production in the basin of both assessed ponds. This may result from various types of agricultural crops (Brassica napus L. var. napus and ×Triticosecale Wittm. ex A.Camus) and intense fertilization of arable land in Stare Czarnowo. Statistically significant differences in particular layers of sediment confirm that depending on the type of agricultural activity, mid-field ponds are supplied with various mineral matter at different times, resulting in its accumulation in benthic sediments.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2018, IV/1; 939-950
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Możliwość retencjonowania wody w nizinnej zlewni cieku Jeziorka
    The possibility of water retention in a lowland Jeziorka stream catchment
    Autorzy:
    Olszewska, B.
    Nowicka, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/101081.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    mała retencja
    Jeziorka
    zbiornik wodny
    zasoby wodne
    small retention
    Jeziorka river
    water ponds
    water reserves
    Opis:
    Praca zawiera informacje dotyczące możliwości retencjonowania wody w nizinnej zlewni rzeki Jeziorki. Jeziorka to ciek II rzędu położony w całości w dolinie Odry w województwie dolnośląskim, w powiecie średzkim. Jest to prawostronny dopływ Średzkiej Wody, która uchodzi do Odry w rejonie Malczyc. W pracy podano charakterystykę opisywanej zlewni z uwzględnieniem jej położenia, warunków hydrogeologicznych, glebowych oraz meteorologicznych. Opisane zostały także zasoby wodne zlewni oraz kształtowanie się wód gruntowych. W pracy przedstawiono inwentaryzację istniejących obiektów małej retencji w analizowanej zlewni. Zaprezentowano możliwości retencjonowania wody na podstawie analizy charakterystyki opisywanego obszaru a także po szczegółowym zapoznaniu się z podstawowymi formami retencji. Zostały przedstawione także schematy praktycznego zastosowania obiektów jak i warunków do celów retencyjnych. Budowa morfologiczna zlewni Jeziorki, analiza materiałów źródłowych oraz map topograficznych wskazała jako najlepszą formę retencji tej zlewni - retencję koryt i dolin rzecznych.
    The paper contains information refers to the possibility of water retention in the lowland Jeziorka stream catchment. The Jeziorka stream is II order river, located entirely in the Oder valley in Lower Silesia, in the district of Środa Śląska. It is a right tributary of the Średzka Woda stream which flows into the Oder river in the region Malczyce. The characteristics of the catchment area, including its location, geological, soil and weather conditions is presented in the paper. Water resources of catchment and the groundwater depths are also described. The paper presents an inventory of existing small retention facilities in the analyzed catchment. Possibilities of water retention on the basis of the characteristics of the described area and after carefully reading the basic forms of retention is presented in the paper. Diagrams of practical use objects and conditions for water retention are described. Morphological structure of the Jeziorka catchment and analysis of source materials and topographic maps have found that the best form of water retention for this catchment is retention of riverbeds and river valleys.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2016, I/1; 5-15
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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