TY  - BOOK
AU  - WU, Xiaodong
AU  - ZHAO, Lin
AU  - WU, Tonghua
AU  - CHEN, Ji
AU  - PANG, Qiangqiang
AU  - DU, Erji
AU  - FANG, Hongbing
AU  - WANG, Zhiwei
AU  - ZHAO, Yonghua
AU  - DING, Yongjian
TI  - Observation of CO2 degassing in Tianshuihai Lake Basin of the Qinghai-Tibetan Plateau
CY  - Verlag
PB  - Spr
KW  - underground gas
KW  - Tianshuihai basin
KW  - earth degassing
KW  - Qinghai - Tibetan Plateau
N2  - A large volume of underground gas in the permafrost region of the Qinghai-Tibetan Plateau has been identified. Although many studies were performed to investigate the soil organic carbon dynamics and Earth degassing in volcanic areas, this is the first report of a large amount of non-volcanic CO2 contained in permafrost. The gas was mostly CO2 (81.76 vol. %) and nitrogen (14.59 vol. %). The gas composition and the evidence from carbon stable isotope values (−23.9 ‰, PDB) suggested that the gases possibly had a deep origin. The gas emissions may be triggered by permafrost degradation, which means mitigation of the barrier effect of permafrost for the gas. In addition, plate tectonic processes may also lead to gas emissions, as the tectonic activity is strong in the area. Therefore, particular attention should be paid to the underground gases in the study of global change and permafrost degradation
UR  - https://doi.org/10.1007/s12665-012-1790-0
ER  -