Snow depths' impact on soil microbial activities and carbon dioxide fluxes from a temperate wetland in Northeast China.

ABSTRACT: Snow depth may have a complex influence on carbon cycling in winter. Here we set up a field experiment to investigate how different snow depths (0 cm, 60 cm, 90 cm) influenced carbon dioxide (CO₂) in a wetland. The mean ± standard error of CO₂ emissions under snow addition treatments (60 cm and 90 cm snow depths) were 0.92 ± 0.16 g·cm^-2·s^-1 and 0.53 ± 0.16 g·cm^-2·s^-1, respectively, compared with snow removal treatment (0 cm snow depth), 0.11 ± 0.05 g·cm^-2·s^-1. In general, snow addition increased CO₂ fluxes significantly. As snow depths increased, microbial biomass carbon (MBC) and bacterial diversities increased drastically. More important, the community of bacteria differed under different t

SUBMITTER: Wang X 

PROVIDER: S-EPMC7250892 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature