Stronger compensatory thermal adaptation of soil microbial respiration with higher substrate availability.

ABSTRACT: Ongoing global warming is expected to augment soil respiration by increasing the microbial activity, driving self-reinforcing feedback to climate change. However, the compensatory thermal adaptation of soil microorganisms and substrate depletion may weaken the effects of rising temperature on soil respiration. To test this hypothesis, we collected soils along a large-scale forest transect in eastern China spanning a natural temperature gradient, and we incubated the soils at different temperatures with or without substrate addition. We combined the exponential thermal response function and a data-driven model to study the interaction effect of thermal adaptation and substrate availability on microbial respiration and compared our results to those from two additional continental and global

SUBMITTER: Qu L 

PROVIDER: S-EPMC10945366 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature