Interactive comment on “Soil profile connectivity can impact microbial substrate use, affecting how soil CO2 effluxes are controlled by temperature” by Frances A. Podrebarac et al

General comments The authors describe two soil incubation experiments, (1) of individual sub-horizons of boreal forest organic layers and (2) of entire organic layer profiles with their natural sequence from less to more degraded organic matter. Based on a comparison of these two treatments in two forest sites of different climate and at two incubation temperatures, the authors draw conclusions on the impact of exchange processes between shallower and deeper parts of the organic layer on carbon and ni-