If we analyse the topsoil OC content in the Iberian Peninsula (Fig. 2), it can be noted that the soils with the highest percentages of topsoil OC are in the northwest, with values greater than 2%.
If we analysethe topsoil OC content in the Iberian Peninsula (Fig. 2), it can be notedthat the soils with the highest percentages of topsoil OC are in the northwest,with values greater than 2%.