Article

A study from the University of Copenhagen highlights that stable water tables in wetlands can effectively reduce methane emissions, a potent greenhouse gas. In Denmark, authorities plan to rewet 140,000 hectares of low-lying land to maintain carbon in the soil.

However, the research indicates that permanent flooding may lead to increased methane production. The optimal water level for minimizing methane emissions is found to be around 10 centimeters below the soil surface, allowing methane-oxidizing microorganisms to convert methane into CO2.

Active water management is essential to maintain this balance amid varying seasonal conditions. The study suggests that successful peatland restoration must involve continuous monitoring and regulation of water levels. The findings are relevant for designing large-scale peatland restoration projects, emphasizing that wetlands can significantly contribute to climate mitigation if managed effectively.