GEMAS – Chemistry of Europe’s Agricultural soils, Supporting information, Chemical and Geological Soil Groups

GEMAS (Geochemical Mapping of Agricultural and Grazing Land Soil in Europe) is a cooperative project between the Geochemistry Expert Group of EuroGeoSurveys and Eurometeaux. In total, more than 60 international organisations and institutions worldwide were involved in the implementation of the project. During 2008 and 2009, a total of 2219 samples of agricultural (arable land soils, 0 – 20 cm, Ap samples) and 2127 samples of grazing land (pasture land soils, 0 – 10 cm, Gr samples) soil were collected at a density of 1 site/2 500 km² each from 33 European countries, covering an area of 5,600,000 km². All samples were analysed for 52 chemical elements after an aqua regia extraction, 41 by XRF (total), TC and TOC. In the agricultural soil samples, 57 elements in a mobile metal ion (MMI®) extraction and Pb isotopes ratios were also analysed. In addition to the chemical element contents, soil properties and soil parameters such as pH, particle size distribution, effective cation exchange capacity (CEC), MIR spectra and magnetic susceptibility were investigated and some coefficients were calculated. All analytical results were subject to tight external quality control procedures. The GEMAS project thus provides for the first time fully harmonised data for element concentrations and bioavailability of the elements at the continental (European) scale. The geochemical maps provided in the data series “GEMAS - Single element maps” and “GEMAS - Parameters and indices” show an unbiased representation of the distribution patterns of the investigated elements and parameters. The data series “GEMAS - Supporting information” provides additional information to support the interpretation of these geochemical maps. The data set “Chemical and Geological Soil Groups” belonging to this data series provides a map of the distribution of the geological and chemical soil groups in the project survey area. The chemical and geological soil groups were generated by combining the information from lithological maps and parent material maps with the geochemical signal from the GEMAS project samples.

Citation proposal
(2021) . GEMAS – Chemistry of Europe’s Agricultural soils, Supporting information, Chemical and Geological Soil Groups. https://gdk.gdi-de.org/geonetwork/srv/api/records/d061c06e-0411-41c0-8fc8-f048576bb661

INSPIRE
SDS

INSPIRE

Identification

File identifier: d061c06e-0411-41c0-8fc8-f048576bb661 XML

Hierarchy level: dataset Dataset

Online resource

Resource identifier

code: f3deaf1c-0e54-ca37-d2c5-90c3a1b2fae2

Metadata language: eng English

Spatial representation type: Grid

Spatial representation type: Vector

Encoding

Format: Shapefile

Version: n/a

Format: PDF

Version: n/a

Format: PNG

Version: n/a

Projection

Classification of data and services

Topic category

Geoscientific information

Classification of data and services

Coupled resource

Classification of data and services

Coupled resource

Keywords

GEMET - Concepts, version 4.1.4 ( Theme )

Atlas
Boden
Landwirtschaft
soil
agriculture

Other keywords

Keywords ( Theme )

GEMAS
Geochemie
Geochemische Karte
Ackerlandboden
Weidelandboden
flächenhafte Verteilung
Bodeneigenschaften
Bodenparameter
geochemistry
geochemical map
arable land soil
pasture land soil
spatial distribution
soil properties
soil parameters

Keywords ( Place )

Europa
Europe

Geographic coverage

Temporal reference

Temporal extent

Date ( Publication ): 2021-07-07

Quality and validity

Lineage: Birke, M., Rauch, U. & Reimann, C. (2014): Supporting Information for Interpretation of Geochemical Maps. In: Reimann, C., Birke, M., Demetriades, A., Filzmoser, P. & O'Connor, P. (eds.): Chemistry of Europe's Agricultural Soils, Part A: Methodology and Interpretation of the GEMAS Data Set. (Geologisches Jahrbuch). B102: 93-102; Stuttgart (Schweizerbart Science Publishers).

Denominator: 25000000

Conformity

Explanation: siehe dazu die angegebene Durchführungsbestimmung

Restrictions on access and use

Access constraints: Allgemeine Geschäftsbedingungen, s. https://www.bgr.bund.de/agb - General Terms and Conditions, s. https://www.bgr.bund.de/agb_en