Abrupt temperature shifts alter DOM composition and electron transfer capacity: Unraveling the impact of climate extremes on greenhouse gas emissions in Yangtze River floodplain sediments

Key Points

• Greenhouse gas emissions increase due to abrupt temperature shifts observed in sediments.
• Key evidence shows a notable increase in electron transfer capacity under climate extremes.
• Observational analysis of sediments from the Yangtze River floodplain highlights changes in DOM composition.
• Findings suggest the need for further studies to understand the impacts of climate extremes on ecosystems.