A novel whole-greenhouse static chamber method for quantifying ecosystem respiration and nitrous oxide emissions in greenhouse cultivation systems.

ABSTRACT: We present a novel and cost-effective whole-greenhouse static chamber method for quantifying nighttime ecosystem respiration (carbon dioxide emissions in the dark) and nitrous oxide (N₂O) emissions in greenhouse cultivation systems. This method leverages routine nighttime sealing practices-such as closing vents and deploying thermal quilts-to create an enclosed environment for gas accumulation. Gas concentrations can be monitored either automatically using in situ sensors or manually via gas-tight sampling bags. In both approaches, linear regression of gas concentration versus time yields robust accumulation rates, which are then converted into fluxes based on greenhouse volume and temperature. Validation using a high-precision Picarro analyzer demonstrated strong linearity (R² > 0.95) in

SUBMITTER: Quan Z 

PROVIDER: S-EPMC12552901 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature