Influence of plant ecophysiology on ozone dry deposition: comparing between multiplicative and photosynthesis-based dry deposition schemes and their responses to rising CO<sub>2</sub> level

Abstract. Dry deposition is a key process for surface ozone (O3) removal. Stomatal uptake major component of O3 dry deposition, which parameterized differently in current land models and chemical transport models. We developed used standalone terrestrial biosphere model, driven by unified set prescribed meteorology, to evaluate two widely modeling frameworks, Wesely (1989) Zhang et al. (2003), with different configurations stomatal resistance: (1) the default multiplicative method scheme (W89) (2003) (Z03), (2) traditional photosynthesis-based Farquhar–Ball–Berry (FBB) algorithm, (3) Medlyn algorithm (MED) based on optimization theory. found that using FBB approach captures ecophysiological responses environmental factors, especially water stress, can generally improve simulated velocities compared schemes. The MED produces higher conductance than likely overestimate vegetation types, but its performance greatly improved when spatially varying slope parameters annual mean precipitation are used. Large discrepancies were also rising CO2 levels from 390 550 ppm: an empirical response function reduction (−35 %) global average much larger (−14 %–19 %). Our results show potential biases sink caused errors model structure importance representation resistance schemes under changing climate concentration.