Keel et al. (2023): Soil carbon sequestration potential bounded by population growth, land availability, food production, and climate change
Sonja G. Keel, Daniel Bretscher, Jens Leifeld, Albert von Ow, Chloé Wüst-Galley IN: Carbon Management, 14, https://doi.org/10.1080/17583004.2023.2244456
Improving soil management to enhance soil carbon sequestration (SCS)—a cost-efficient carbon dioxide (CO2) removal approach—can result in co-benefits or trade-offs. Here the authors address this issue by setting up a modeling framework for Switzerland that combines soil carbon (C) storage, food production and agricultural greenhouse gas (GHG) emissions. The link to food production is crucial because crop types and livestock numbers influence soil organic C (SOC) stocks, through soil C inputs from plants and manure. They estimated SCS rates for the years 2020–2050 for three scenarios, each with two variants for biochar: cover cropping, biochar addition and agroforestry-biochar addition.