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Soil Carbon Sequestration

Carbon sequestration describes the process of transferring carbon from the atmosphere to the terrestrial biosphere (soil or vegetation). Soils contain vast quantities of plant, animal and microbial residues in varying stages of decomposition and store more carbon globally than the atmospheric and living vegetation pools combined. Temperate grasslands have shown strong potential to store carbon belowground in roots and soil. However, there is still large uncertainty surrounding baseline soil C values and verifying the strength and permanence of carbon sequestered in different soil fractions. Research in Teagasc Johnstown Castle is focussed on assessing the quantity and quality of soil organic carbon (SOC) in agricultural soils as well as management, soil and climatic effects on C sequestration. Soil samples taken across a range of soil types as part of the Irish Soil Information System and SQUARE projects will be analysed. In addition, flux data from long-term eddy covariance towers will provide detailed information on carbon exchange at an ecosystem level and the drivers of carbon uptake and release.

You can read more about the Carbon Sequestration Project is available on the AGRI-I website