Temperature, moisture and freeze-thaw controls on CO₂ production in soil incubations from northern peatlands.

ABSTRACT: Peat accumulation in high latitude wetlands represents a natural long-term carbon sink, resulting from the cumulative excess of growing season net ecosystem production over non-growing season (NGS) net mineralization in soils. With high latitudes experiencing warming at a faster pace than the global average, especially during the NGS, a major concern is that enhanced mineralization of soil organic carbon will steadily increase CO₂ emissions from northern peatlands. In this study, we conducted laboratory incubations with soils from boreal and temperate peatlands across Canada. Peat soils were pretreated for different soil moisture levels, and CO₂ production rates were measured at 12 sequential temperatures, covering a range from - 10 to + 35 °C including one freeze-tha

SUBMITTER: Byun E 

PROVIDER: S-EPMC8636591 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature