Articles | Volume 17, issue 5
Clim. Past, 17, 1903–1918, 2021
https://doi.org/10.5194/cp-17-1903-2021

Special issue: Publications by EGU Medallists

Clim. Past, 17, 1903–1918, 2021
https://doi.org/10.5194/cp-17-1903-2021

Research article 24 Sep 2021

Research article | 24 Sep 2021

Stalagmite carbon isotopes suggest deglacial increase in soil respiration in western Europe driven by temperature change

Franziska A. Lechleitner et al.

Data sets

flechleitner/Spain_analysis: (v1.0) Franziska Lechleitner and Micah Wilhelm https://doi.org/10.5281/zenodo.5503041

Model code and software

flechleitner/DCF_calculator: (v1.0) Franziska Lechleitner https://doi.org/10.5281/zenodo.5503025

Short summary
Soil respiration is a critical but poorly constrained component of the global carbon cycle. We analyse the effect of changing soil respiration rates on the stable carbon isotope ratio of speleothems from northern Spain covering the last deglaciation. Using geochemical analysis and forward modelling we quantify the processes affecting speleothem stable carbon isotope ratios and extract a signature of increasing soil respiration synchronous with deglacial warming.