Effects of diurnal temperature cycles and elevated temperatures on CH4 oxidation and trace gas dynamics in high-alpine soil microcosms
This study investigates the effects of controlled diurnal temperature variation and elevated temperature conditions on microbial CH4 oxidation and associated trace gas dynamics in a vegetated high-alpine soil. Soil microcosms were incubated under controlled day–night temperature cycles at constant soil water content, allowing the effects of temperature variability to be examined independently of changes in soil moisture. CH4 oxidation was measured throughout the temperature cycles together with CO2, H2, and CO dynamics. A heatwave treatment was additionally applied to assess changes in the response of CH4 oxidation to elevated temperature ranges. The experiment provides molecular and gas-exchange data for evaluating short-term temperature responses of microbial greenhouse gas cycling under controlled conditions.
This study investigates the effects of controlled diurnal temperature variation and elevated temperature conditions on microbial CH4 oxidation and associated trace gas dynamics in a vegetated high-alpine soil. Soil microcosms were incubated under controlled day–night temperature cycles at constant soil water content, allowing the effects of temperature variability to be examined independently of changes in soil moisture. CH4 oxidation was measured throughout the temperature cycles together with CO2, H2, and CO dynamics. A heatwave treatment was additionally applied to assess changes in the response of CH4 oxidation to elevated temperature ranges. The experiment provides molecular and gas-exchange data for evaluating short-term temperature responses of microbial greenhouse gas cycling under controlled conditions.