‘Engineering’ vegetation for carbon sequestration and storage in new earthfills

Objectives Quantify the incorporation of organic matter originating from roots into the soil, and obtain dynamic insight on the effects of root activity and penetration on soil organic carbon (SOC) content and composition in the close vicinity of roots under vegetation and in fallow soil. Expected Results Stocks of root carbon, SOC and soil isotopic C at different soil depths in compacted earthfills in the laboratory and near railway lines (southern France) equipped with rhizotrons.