Accessing Fungal Contributions to the Birch Effect: Real-Time Respiration from Pore-Scale Microfluidics.

Drying and rewetting of soil stimulates soil carbon emission. The Birch effect, driven by these cycles, leads to CO efflux, which can be monitored using real-time mass spectrometry (RTMS). Although soil fungi retain water during droughts, their contribution to CO release during drying-rewetting cycles remains unclear.