Publication Date
5-2020
Abstract
Monthly in situ monitoring of cave air CO2 and drip water chemistry were carried out in Shenqi Cave, Sichuan, southwest China, during a hydrological year from April 2016 to December 2016. Results indicate that the cave temperature (~11.7°C) and relative humidity (~100%) were stable during the whole year. The air CH4 concentrations changed from ~2000ppb outside the cave to ~500ppb inside the cave. The average CO2 concentrations varied from ~550ppm in winter to ~1200ppm in summer, with their δ13C values from ~ –15‰ to ~ –21‰, indicating the influences of seasonal biologic activities and cave ventilation caused by climate change.
Rights Information
DOI
https://doi.org/10.5038/9781733375313.1006
Cave air CO2 monitoring in Shenqi Cave, southwest China
Monthly in situ monitoring of cave air CO2 and drip water chemistry were carried out in Shenqi Cave, Sichuan, southwest China, during a hydrological year from April 2016 to December 2016. Results indicate that the cave temperature (~11.7°C) and relative humidity (~100%) were stable during the whole year. The air CH4 concentrations changed from ~2000ppb outside the cave to ~500ppb inside the cave. The average CO2 concentrations varied from ~550ppm in winter to ~1200ppm in summer, with their δ13C values from ~ –15‰ to ~ –21‰, indicating the influences of seasonal biologic activities and cave ventilation caused by climate change.
