Table 5.

Abbreviation for data on each variable extracted from the ‘Maps of indicators of soil hydraulic properties for Europe’ dataset, and ‘Mapping topsoil physical properties at European scale using the LUCAS database’ dataset used as column names.

Variable	Abbreviation/Column name
Available Water Capacity for the topsoil fine earth fraction	‘awc’
Bulk density derived from soil texture datasets	‘bd’
Coarse fragments (%) content in topsoil modelled by Multivariate Additive Regression Splines,	‘cf’
Clay content (%) in topsoil (0–20 cm) modelled by Multivariate Additive Regression Splines	‘clay’
Water content at field capacity	‘fc’
Saturated hydraulic conductivity	‘ks’
Sand content (%) in topsoil modelled by Multivariate Additive Regression Splines,	‘sand’
Silt content (%) in topsoil modelled by Multivariate Additive Regression Splines	‘silt’
USDA soil textural classes derived from clay, silt and sand maps	‘text’
Saturated water content	‘ths’
Water content at wilting point	‘wp’