Title: Bulk density in the EU
Description: In the LUCAS 2018 survey, bulk density has been analysed for different depths, i.e., 0–10 cm = 6140 sites; 10–20 cm = 5684 sites. We spatialised the circa 6000 LUCAS samples and developed the high-resolution map (100 m) of bulk density for the 0–20 cm depth and the maps at 0–10 and 10–20 cm depth. The modelling results showed a very good prediction (R2: 0.66) of bulk density for the 0–20 cm depth which outperforms previous assessments. The bulk density maps can be used to estimate packing density which is a proxy to estimate soil compaction.
Key findings:
- The main driver for bulk density variation is the land cover type.
- Croplands have almost 1.5 times higher bulk density compared to woodlands.
- Compared to existing pedotransfer rules, there is an overestimation of BD in woodlands (∼25%).
- The comparison between measured BD and current modelled BD outperforms (R-Squared) the other regional and global models.
Spatial coverage: EU+ UK
Pixel size: 100m
Measurement Unit: Mg m-3 (or g cm-3)
Projection: EPSG:3035 - ETRS89-extended / LAEA Europe
Temporal coverage: 2018 (as LUCAS Samples were taken in 2018)
Type of Dataset: GeoTiff
More information about Bulk Density assessments
Reference: Panagos, P., De Rosa, D., Liakos, L., Labouyrie, M., Borrelli, P., Ballabio, C., 2024. Soil bulk density assessment in Europe. Agriculture, Ecosystems & Environment 364: 108907. https://doi.org/10.1016/j.agee.2024.108907
