This dataset includes the third year observations of the Finnish Carbon Action carbon sequestration experiment. In the experiment c.a. 100 farms test carbon farming methods on a test field and an adjacent control plot. Of these 20 farms were chosen for continued sampling 2020-2024 combining field observations and soil sampling. This data will be coupled with satellite imagery, field sensors and carbon cycle modeling to forecast carbon sequestration. Subsequent sampling will track changes in soil carbon stock and soil productivity. The dataset will be updated annually, updates are published as separate datasets in https://zenodo.org/communities/carbonaction/ . The 2022 update includes data on: physical quality: soil structure (VESS), bulk density, porosity, water holding capacity, infiltration rate biological properties: earthworm counts, above ground biomass, plant cover (%), chlorophyll, microbial activity (Solvita) chemical properties: soil nitrogen pools Compared to the previous version, the updated version has a corrected calculation for biomass, to take into account row spacing (12,5 cm). Site photos and updated water infiltration rates will be published in an updated release in winter 2024.

Year 2019, 2020 and 2021 datasets can be found at: https://zenodo.org/communities/carbonaction