Carbon exchange of deciduous broadleaved forests in temperate and Mediterranean regions.

Np, for NPP Nec, Net ecosystem carbon exchange, as measured by micrometeorologists NB, Net biome productivity Gp, Gross primary productivity Jpmax, maximum flux density of canopy photosynthesis Reco, ecosystem respiration Rplant, plant respiration Rauto, soil autotrophic respiration Rhetero, soil heterotrophic respiration Rsoil, total soil respiration Ea,actual evaporation Ep, potential evaporation Vcmax, maximum carboxylation velocity (measured as maximum assimilation rate under saturating light and saturating CO2) Ci, internal CO2 concentration Rd, leaf dark respiration ?, ribulose 1,5-bisphosphate carboxylase oxygenase (RUBISCO) specificity factor A, CO2 assimilation rate Kc, Michaelis–Menten constant for CO2 Ko, Michaelis–Menten constant for O2 Jmax, maximum electron transport rate Amax, maximum assimilation rate (at saturating light and ambient CO2) 9