Soil chemistry and meteorological conditions influence the elemental profiles of West European wines
2019
Abstract Elemental profiles of
wineshave been used successfully to distinguish their geographical provenience around the world; however, underlying mechanisms are poorly understood. In this study, Ba, Ca, Mg, Mn and Sr contents were determined in 215
winesfrom several West European
wine-growing areas using an easy-to-perform analysis based on ICP-OES. Major environmental and
wine-making parameters (
soil typeas “calcareous” or not, rainfall, temperature and
wine color) were used to
explain variationswithin the dataset. The combined effects of
wine-making processes (expressed by
wine color) and
soil typeexplained 28.5% of total variance. The effect of climatic conditions explained 24.1% of variance and could be interpreted as intensity of drought stress. Finally, carbonate occurrence in soils and climatic conditions systematically influenced the elemental composition of the
wines. These findings provide insights into the mechanisms underlying elemental fingerprinting and allow prediction of which
wine-
growing regionscan easily be distinguished based on elemental profiles as a marker of the
terroirin
viticulture.
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