We present a fully automatic, low-cost soil–plant enclosure system to monitor CO₂ and evapotranspiration fluxes within greenhouse experiments. It operates in two modes: independent, using low-cost sensors, and dependent, where multiple chambers connect to a single gas analyzer via a low-cost multiplexer. This system provides precise, accurate measurements and high temporal resolution, enabling comprehensive monitoring of plant–soil responses to various treatments and conditions.

Precise and accurate estimates of wetland organic carbon sequestration rates are crucial to track the progress of climate action goals through effective carbon budgeting. Radioisotope dating methods using cesium-137 (¹³⁷Cs) and lead-210 (²¹⁰Pb) are needed to provide temporal references for these estimations. The choice between using ¹³⁷Cs or ²¹⁰Pb, or their combination, depends on respective study objectives, with careful consideration of factors such as dating range and estimation complexity.