Linking the distribution of carbon isotope ratios in soil carbonates and speleothems to climate conditions in the past: A model for the dependence of respiration rate on soil moisture

Yuchen Liu1, Daniel E Ibarra2, Matthew Winnick2, Jeremy K Caves3, Jessica Leigh Oster4 and Jennifer L Druhan5, (1)University of Illinois at Urbana Champaign, Urbana, IL, United States, (2)Stanford University, Stanford, CA, United States, (3)ETH Zurich, Zurich, Switzerland, (4)Vanderbilt University, Earth and Environmental Sciences, Nashville, TN, United States, (5)University of Illinois at Urbana Champaign, Department of Geology, Urbana, IL, United States