Constraints for transit times of soil carbon from a global compilation of radiocarbon in incubations

Susan Trumbore1, Alison Hoyt2, Carlos A Sierra3, Jeffrey Beem-Miller1, Shane Stoner1 and Sophie F von Fromm4, (1)Max Planck Institute for Biogeochemistry, Jena, Germany, (2)Stanford University, Earth Systems Science, Stanford, United States, (3)Max Planck Institute for Biogeochemistry, Theoretical Ecosystem Ecology, Jena, Germany, (4)Max-Planck-Institute for Biogeochemistry, Department of Biogeochemical Processes, Jena, Germany