Heavy Metals Accumulation in Topsoils from the Wine-growing Regions (CROSBI ID 106882)
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Romić, Marija ; Romić, Davor ; Dolanjski, Dragutin ; Stričević, Ivo
engleski
Heavy Metals Accumulation in Topsoils from the Wine-growing Regions
The problem of exposure of agricultural soils to different anthropogenic inputs of heavy metals has been investigated in soils from two wine-producing subregions in northwestern Croatia. The aim of this study was to explore: (i) the main soil properties and topsoil accumulation of heavy metals in vineyards under long-term cultivation, and (ii) the origin and the preferential feature of metal retention in vineyard topsoil using the multivariate statistical method. The investigated area was marked on regular square grid with 1-km spacing. Topsoil samples (0-10 cm) were collected from each sampling point and analyzed for soil chemical properties, particle size distribution and heavy metal concentrations after aqua regia digestion. All soil data were incorporate into the GIS base. Summary statistics of the data set were first calculated to evaluate the distributions, and afterward processed by means of R-mode factor analysis, applying the varimax-raw rotational technique. Anthropogenic input of metals in soils of the studied wine-growing regions mostly originates from agrochemicals, since the direct influence of the urban environment or industry is almost negligible. Accumulation of copper and zinc in topsoil, determined in this research, is the most common effect of continuing fertilization and protection against diseases and pests in vineyards.
agrochemicals; aqua regia extraction; viricultural environment; multivariate statistics
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