Modelling Net CO₂ Assimilation of Two Sphagnum Species From Temperature and Water Content Response.

ABSTRACT: Photosynthesis and respiration respond differently to the combined effects of temperature and water status. Quantifying their responses is crucial to predict the carbon balance of Sphagnum peatlands in different scenarios of climate change. A first approach was done for two Sphagnum species inhabiting a boreal peatland in Finland. Gas exchange at different temperatures and moss hydration were measured to model net assimilation using simultaneous measurements of photosynthesis and dark respiration. In addition, measurements of moss surface temperature at different water content were performed in the field, covering natural conditions of sun exposure and air temperature. We also accounted for the interaction effect between moss canopy temperature and air temperature, radiation, and water con

SUBMITTER: Perera-Castro AV 

PROVIDER: S-EPMC12163974 | biostudies-literature | 2025 May-Jun

REPOSITORIES: biostudies-literature