Soils-R-GGREAT is a NERC-funded project that uses a combination of life cycle assessment (LCA), scenario database analysis, network data analysis, meta-analysis, biophysical modelling, economic modelling, stakeholder engagement and expert consultation to deliver the most rigorous and comprehensive global assessment of potential, feasibility, barriers and impacts of soil-based greenhouse gas removal methods. At UK level, the Soils-R-GRREAT project provides evidence on national and global potential of soil based GGRs to support national climate change policy at the UK, and devolved administration levels. This collection contains data from research focused on quantifying C dynamics in managed grasslands in the UK by fusing observational data and process modelling.