This publication concerns the annual report of the second working year of the carbon monitoring network (July 1, 2022 - June 30, 2023) and contains the first measurement results of the first 2 working years. The Flemish carbon monitoring network 'Cmon' aims to monitor organic carbon stocks in soils of different land uses (cropland, permanent grassland, forest, nature and land use) and their evolutions. For 2594 monitoring plots, over a 10-year period (t0), not only organic carbon stocks to 1 m depth, but also total nitrogen, pH and soil texture will be determined. The intention is to return to those same plots after those 10 years and sample again (t1). The number of monitoring plots should allow detection of an average carbon stock change of 4‰ over 20 years, but the staged
sampling will also allow relatively rapid, first representative detection of carbon stock changes. This meets the mandatory five-year LULUCF reporting (i.e., 2021-2025) and will also allow us to monitor in Flanders the actual evolution of soil organic carbon rates and stocks in different land use categories and the policy impacts on them.