Microbial responses to soil cooling might explain increases in microbial biomass in winter.

ABSTRACT: In temperate, boreal and arctic soil systems, microbial biomass often increases during winter and decreases again in spring. This build-up and release of microbial carbon could potentially lead to a stabilization of soil carbon during winter times. Whether this increase is caused by changes in microbial physiology, in community composition, or by changed substrate allocation within microbes or communities is unclear. In a laboratory incubation study, we looked into microbial respiration and growth, as well as microbial glucose uptake and carbon resource partitioning in response to cooling. Soils taken from a temperate beech forest and temperate cropland system in October 2020, were cooled down from field temperature of 11 °C to 1 °C. We determined microbial growth using ¹⁸O-inco

SUBMITTER: Schnecker J 

PROVIDER: S-EPMC10354169 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature