biostudies-literatureUnknown10(1)Wang XSnow 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 tScientific reports8709https://www.ebi.ac.uk/biostudies/studies/S-EPMC7250892biostudies-literatureSnow depths' impact on soil microbial activities and carbon dioxide fluxes from a temperate wetland in Northeast China.PMC7250892He CMa LSheng LJiang HLuo WWang XBai XfalseSnow depths' impact on soil microbial activities and carbon dioxide fluxes from a temperate wetland in Northeast China.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 t2020-01-01T00:00:00Z2020 May2025-04-04T22:32:33.695Z2025-02-19T03:23:49.565ZS-EPMC72508923245737110.1038/s41598-020-65569-x