Diachronic Mapping of Soil Organic Matter in Eastern Croatia Croplands

The spatiotemporal analysis and mapping of soil organic matter (SOM) play a pivotal role for evaluating health implementing preservation restoration actions. In this context, the first aim study is to furnish high-resolution current SOM content in eastern Croatia. second perform diachronic content, comparing two datasets characterized by an extreme data imbalance. more recent dataset (SOM2010), representative 2010s, comprises 19,386 samples older (SOM1970), 1970s, 152 samples. marked imbalance different modalities sampling laboratory are taken into consideration performing comparison. reveals general depletion trend from 1970s evident with regard Fluvisols Gleysols. At regional scale, SOM2010 lower variability compared SOM1970, indicating process homogenization spatial distribution years. Considering local there limited information 1970s; 2010s high short-range variability, characteristic spotty appearance, likely related agricultural practices.