ABSTRACT
In the first part of this voluntary exercise, we have produced a topsoil Organic Carbon (OC) content map of Romania converging toward a GSM Tier 2 product, thanks to legacy vector maps, generated bottom-up starting from the studies of the Soil Survey County Offices. Besides, we have used a set of pedotransfer rules, previously developed based on a vast archive of soil profile data. The uncertainty sources affecting this map have been identified and sorted out for future improvements. We have also noticed that for croplands, grasslands, and woodlands, the area-weighted averages of the topsoil OC content as per this map are slightly higher, as compared to the information coming from the LUCAS survey of the year 2012.
In the second part of this exercise, we have provided feedback on two maps of Romania—produced by the Joint Research Center of Ispra (Italy), as the GSM node for the Eurasia part –, namely, the USDA topsoil textural classes map and the topsoil clay content map. For this purpose, we have used legacy vector maps again. Moreover, we have developed a method that minimizes the errors introduced during the processing.
