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Wyszukujesz frazę "agrochemical parameter" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Environmental status of the Arctic soils
Autorzy:
Nikitina, M.
Popova, L.
Korobitcina, J.
Efremova, O.
Trofimova, A.
Nakvasina, E.
Volkov, A.
Powiązania:
https://bibliotekanauki.pl/articles/15937.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
environmental status
Arctic soil
soil
agrochemical parameter
heavy metal
Opis:
The Arctic region is under an ever-increasing anthropogenic influence. The nature in the Arctic is extremely vulnerable to the effects of pollutants, which may eventually lead to certain irreversible ecological processes. Heavy metals occupy a special place among priority pollutants. Therefore, the aim of this study has been to assess the ecological status and the degree of contamination with heavy metals of the soils of Arctic and sub-Arctic areas. Arctic soils were studied in the region of the White Sea and the Barents Sea during the Arctic Floating University, a research expedition held in July 2012 by M. Lomonosov Northern (Arctic) Federal University. During the expedition, samples were collected and the landscapes (topography, vegetation) were described. In order to assess the impact of environmental contamination, the total content of heavy metals in soils was evaluated by X-ray fluorescence analysis (XRF). The level of soil contamination was assessed according to the maximum permissible concentrations ( MPC), temporary permissible concentrations (TPC), chemical substance factor (Kc) and the total pollution index (Zc). Our analysis of the experimental data showed a wide-range change in the soil agrochemical parameters. It has been demonstrated that the investigated soils of the Arctic and sub-Arctic areas represent different soil properties, are affected by different climatic conditions and belong to different texture taxonomic classes, e.g. the grain-size distribution varies from sand to clay loam; the pH ranges from strongly acid to neutral and the content of organic substances can be very low to high. According to the total pollution index, almost all the soils present an acceptable heavy metal contamination level. In most of the studied soils, the heavy metals in terms of amounts accumulated can be ordered as follows: Co > Pb > Cu > Zn > As > Ni > V > Mn.
Źródło:
Journal of Elementology; 2015, 20, 3
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil agrochemical parameters and grain quality indices change in crop rotation
Autorzy:
Vucans, R.
Livmanis, J.
Powiązania:
https://bibliotekanauki.pl/articles/9730602.pdf
Data publikacji:
2004
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
soil parameter
agrochemical parameter
grain quality
quality index
quality change
crop rotation
fertilizer
soil agrochemical index
gluten content
crude protein content
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura; 2004, 59, 4; 1533-1542
0365-1118
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of Water Quality in Wet and Intermediate Zones in Selected, Sri Lanca: An Analytical Review
Autorzy:
Fowzul Ameer, M. L.
Powiązania:
https://bibliotekanauki.pl/articles/1111952.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Parameter
agrochemical
concentration
groundwater
Opis:
This study is based on the analysis of drinking water parameters in selected wet and intermediate zones of Sri Lanka. Unsafe drinking water is one of the main concerns in developing countries. In Sri Lanka, the drinking water quality is a major concern in many places. A series of studies have been conducted in intensive agricultural production areas, namely, Jaffna, Vavuniya, Anuradhapura, Kurunagala and Hambantota. This represents a longitudinal section of Sri Lanka, and the study was done to understand the groundwater quality over the years of 2004 to 2009. Water from selected areas were sampled throughout the villages of this area mostly from open wells and tube wells. The samples were analysed for their chemical quality in order to identify water quality as compared with the Sri Lankan Drinking water standard. For this study, Sodium (Na+), Calcium (Ca2+), Magnesium (Mg2+), Chloride (Clˉ), Sulphate (SO42ˉ) and Nitrate (NO3ˉ) were analysed. Accordingly, in the Dry Zone, the concentration of the Ca, Mg and Cl are higher than in the Wet Zones. Indeed, some sampling wells in the Dry Zones have extreme concentration of Ca (more than 1000 mg/l) and this is a major threat to the consumers for drinking purposes. In total, of 103 wells, 6 percent of the sampling wells were identified as contaminated, whereas in total, of 96 wells in the Dry Zone, 64 percent of the sampling wells were found to be contaminated due to chemical concentration. We found that rural areas are facing agrochemical-leaching problems into the groundwater, whereas urban areas are facing industrial and biological materials seeping into the ground and surface water bodies.
Źródło:
World News of Natural Sciences; 2018, 19; 19-31
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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