Jean-Philippe Jenny 

The DEEP‑C project is based on a national programme of long‑term, systematic observations of greenhouse gas (GHG) and carbon‑cycle processes in lakes, providing an unprecedented level of detail, consistency, and quality across 40 pilot sites, complemented by a synthesis of existing datasets. Using dated sediment records, the variability of carbon burial and its climatic and land‑use controls will be reconstructed for the past 150 years. For 15 of the pilot sites, this reconstruction will extend back to the mid‑Holocene (5,000 years BP), shedding light on human‑driven disturbances of the carbon cycle during an earlier period of human history that is often excluded from such studies.

Using these data, the ORCHIDEE C‑lateral land‑surface model (LSM) will be used to evaluate the terrestrial biosphere carbon cycle and the mobilisation of biospheric carbon into lakes.