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Type: Journal article
Title: Geogenic and agricultural controls on the geochemical composition of European agricultural soils
Author: Saaltink, R.
Griffioen, J.
Mol, G.
Birke, M.
Citation: Journal of Soils and Sediments: protection, risk assessment and remediation, 2014; 14(1):121-137
Publisher: Springer
Issue Date: 2014
ISSN: 1439-0108
Statement of
Rémon Saaltink, Jasper Griffioen, Gerben Mol, Manfred Birke, the GEMAS Project Team
Abstract: Purpose: Concern about the environmental impact of agriculture caused by intensification is growing as large amounts of nutrients and contaminants are introduced into the environment. The aim of this paper is to identify the geogenic and agricultural controls on the elemental composition of European, grazing and agricultural soils. Materials and methods: Robust factor analysis was applied to data series for Al, B, Ca, Cd, Co, Cu, Fe, K, Mg, Mn, Na, Ni, P, S, Se, Sr, U, Zn (ICP-MS) and SiO2, K2O, Na2O, Fe2O3, Al2O3 (XRF) based on the European GEMAS dataset. In addition, the following general soil properties were included: clay content, pH, chemical index of alteration (CIA), loss on ignition (LOI), cation exchange capacity (CEC), total organic carbon (TOC) and total carbon and total sulfur. Furthermore, this dataset was coupled to a dataset containing information of historic P2O5 fertilization across Europe. Also, a mass balance was carried out for Cd, Cu and Zn to determine if concentrations of these elements found in the soils have their origin in historic P2O5 fertilization. Results and discussion: Seven geogenic factors and one agricultural factor were found of which four prominent ones (all geogenic): chemical weathering, reactive iron-aluminum oxide minerals, clay minerals and carbonate minerals. Results for grazing and agricultural soils were near identical, which further proofs the prominence of geogenic controls on the elemental composition. When the cumulative amount of P2O5 fertilization was considered, no extra agriculture-related factors became visible. The mass balance confirms these observations. Conclusions: Overall, the geological controls are more important for the soil chemistry in agricultural and grazing land soils than the anthropogenic controls.
Keywords: Agricultural impact; GEMAS; robust factor analysis; soil geochemistry
Rights: © Springer-Verlag Berlin Heidelberg 2013
DOI: 10.1007/s11368-013-0779-y
Appears in Collections:Agriculture, Food and Wine publications
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