Greenhouse gas released from the deep permafrost in the northern Qinghai-Tibetan Plateau.

ABSTRACT: Deep carbon pool in permafrost regions is an important component of the global terrestrial carbon cycle. However, the greenhouse gas production from deep permafrost soils is not well understood. Here, using soils collected from 5-m deep permafrost cores from meadow and wet meadow on the northern Qinghai-Tibetan Plateau (QTP), we investigated the effects of temperature on CO₂ and N₂O production under aerobic incubations and CH₄ production under anaerobic incubations. After a 35-day incubation, the CO_2, N₂O and CH₄ production at -2 °C to 10 °C were 0.44~2.12 mg C-CO₂/g soil C, 0.0027~0.097 mg N-N₂O/g soil N, and 0.14~5.88 μg C-CH₄/g soil C, respectively. Greenhouse gas production in deep permaf

SUBMITTER: Mu C 

PROVIDER: S-EPMC5844905 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature