Wind erosion in European agricultural soils - RWEQ
Soil loss by wind erosion in European agricultural soils (RWEQ model)
Field measurements and observations have shown that wind erosion is a threat for numerous arable lands in the European Union (EU). Wind erosion affects both the semi-arid areas of the Mediterranean region as well as the temperate climate areas of the northern European countries. Yet, there is still a lack of knowledge which limits the understanding about where, when and how heavily wind erosion is affecting European arable lands. Currently, the challenge is to integrate the insights gained by recent pan-European assessments, local measurements, observations and field-scale model exercises into a new generation of regional-scale wind erosion models. This is an important step to make the complex matter of wind erosion dynamics more tangible for decision-makers and to support further research on a field-scale level.
For the purposes of the model the arable land of the 28 Member States of the European Union were selected (EU-28). More specifically, the study area covered the following CORINE 2006 land cover unit: non-irrigated arable land (code 2.1.1) and permanently irrigated land (code 2.1.2). The resulting modelling area amounted to ca. 96.1 million hectares.
A GIS version of the Revised Wind Erosion Equation (RWEQ) was developed to i) move a step forward into the large-scale wind erosion modelling, ii) evaluate the soil loss potential due to wind erosion in the arable land of the EU, and iii) provide a tool useful to support field-based observations of wind erosion. The model was designed to predict the daily soil loss potential at a ca. 1 km2 spatial resolution. The average annual soil loss predicted by GIS-RWEQ in the EU arable land totalled 0.53 Mg ha-1 yr-1, with the 2nd quantile and the 4th quantile equal to 0.3 and 1.9 Mg ha-1 yr-1, respectively. The cross-validation shows a high consistency with local measurements reported in literature.
Figure. Revised Wind Erosion Equation (RWEQ)
The land susceptibility to wind erosion (ILSWE) is provided in GeoTIFF Raster format (georeferenced). To get access to the data, please compile the online form; instructions will then follow how to download the data. The data download page will provide you access the page containing three available datasets: 1. Revised Wind Erosion Equation (RWEQ) ; 2. Index of Land Susceptibility to Wind Erosion (ILSWE) 1981-2010; 3. Wind-erodible fraction of soil (EF), and 4. Agriculture Field Parameters on NUTS-3 regions for Wind erosion research.
Title: The soil loss due to wind erosion in European agricultural soils
Description: GIS-RWEQ is a simplified GIS-based application of the RWEQ model (ARS-USDA). It follows a spatially distributed approach based on a grid structure, running in R and Python scripts. The model scheme is designed to describe the daily soil loss potential at regional or larger scale. A complete description of the methodology and the application in Europe is described in the paper:
Borrelli, P., Lugato, E., Montanarella, L., & Panagos, P. (2017). A New Assessment of Soil Loss Due to Wind Erosion in European Agricultural Soils Using a Quantitative Spatially Distributed Modelling Approach. Land Degradation & Development, 28: 335-344, DOI: 10.1002/ldr.2588
Spatial coverage: 28 Member States of the European Union.
Pixel size: ca. 1 km
Projection: ETRS89 Lambert Azimuthal Equal Area
Temporal coverage: from January 2001 to December 2010
Input data source: LUCAS point data, European Soil Database, EEA Corine, MARS climate, NASA MODIS and Landsat imagery.
Information: Pasquale Borrelli, Panos Panagos
European Commission, Institute of Environment and Sustainability, Land Resource Management Unit, Ispra, Italy.
References - Citations: Borrelli, P., Lugato, E., Montanarella, L., & Panagos, P. (2016). A New Assessment of Soil Loss Due to Wind Erosion in European Agricultural Soils Using a Quantitative Spatially Distributed Modelling Approach. Land Degradation & Development, DOI: 10.1002/ldr.2588.
||Title: Soil erosion by wind|
Resource Type: Datasets, Soil Threats Data
Registration requested: Request Form
Publisher: European Commission, Joint Research Centre (JRC)