Relationship of the mobile forms of calcium and strontium in soils with their accumulation in meadow plants in the area of Kashin-Beck endemia
| Autor: | Vadim Ermakov, Valentina Danilova, Vladimir Safonov, Uliana Gulyaeva, Jaume Bech, Sergey Tyutikov, Núria Roca |
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| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
010504 meteorology & atmospheric sciences Soil test chemistry.chemical_element 010501 environmental sciences Calcium 01 natural sciences chemistry.chemical_compound Soil Geochemistry and Petrology Environmental Chemistry Humans Soil Pollutants 0105 earth and related environmental sciences General Environmental Science Water Science and Technology Kashin-Beck Disease Strontium Extraction (chemistry) Trace element Biogeochemistry General Medicine Plants Bioaccumulation Grassland Siberia chemistry Environmental chemistry Soil water Ammonium acetate Environmental Monitoring |
| Zdroj: | Environmental geochemistry and health. 42(1) |
| ISSN: | 1573-2983 |
| Popis: | This study was aimed at assessment of strontium and calcium mobility in soils and their accumulation with plants in the areas endemic for Kashin–Beck disease in Eastern Transbaikalia. The strontium and calcium mobility levels were determined using the method of sequential chemical extraction for 7 samples of meadow soils collected from the endemic region and 7 soil samples taken from conditionally control sites. To measure the Ca and Sr levels in the soil and plant samples, XRF analysis and AAS were used. The increased strontium level in the meadow soils of the endemic areas is accompanied by the element’s higher mobility. The highest strontium yield was observed in the course of soil extraction using 1 M ammonium acetate, while the soils taken from the control sites gave lower amounts of the trace element. Furthermore, there is a positive correlation between the amount of the strontium extracted and its content in plants (r = + 0.86 − 0.98). At the sequential chemical extraction of calcium from the soils using the above method, the calcium yield was maximal in the ammonium acetate fraction (background sites) and in ammonium acetate and 6 M HCl fractions (endemic areas). The correlation between the amount of the calcium extracted in 1 M ammonium acetate and the macroelement levels found in plants was + 0.968. In addition, a peculiarly high accumulation of strontium in various willow species as compared to other meadow plants was revealed for the first time ever. Thus, the work introduces new data into the trace element biogeochemistry and environmental monitoring. |
| Databáze: | OpenAIRE |
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