Modelling and mapping organic carbon content of topsoils in an Atlantic area of southwestern Europe (Galicia, NW-Spain)

Spatial differences in the content of organic carbon in topsoils are closely related to differences in environmental parameters such as climate, land use and geology. The spatial distribution of organic carbon in topsoils in Galicia was predicted using a PLS approach and compared with other more frequently applied regression methods (multiple linear regression, and principal component regression). The accuracy of the estimates has been evaluated...