Simulation of stomatal conductance for Aleppo pine to estimate its ozone uptake.
The data from a previous experiment carried out in open-top chambers to assess the effects of ozone (O3) exposure on growth and physiology of Aleppo pine (Pinus halepensis Mill.) were re-assessed to test the performance of the EMEP O3 stomatal conductance model used to estimate tree O3 uptake at a European scale. Aleppo pine seedlings were exposed during three consecutive years to three different O3 treatments: charcoal filtered air, non-filtered air and non-filtered air supplemented with 40 nl l(-1). The results of the model using the default parameterisation already published for Mediterranean conifers showed a poor performance when compared to measured data. Therefore, modifications of g(max), f(min), and new f(VPD), f(temp) and f(phen) functions were developed according to the observed data. This re-parameterisation resulted in a significant improvement of the performance of the model when compared to its original version.
Elvira
Susana
S
Ecotoxicology of Air Pollution, CIEMAT, Avda. Complutense 22 (ed. 70), 28040 Madrid, Spain.
Alonso
Rocío
R
Gimeno
Benjamín S
BS
D004781:Environmental Exposure / Q000009:adverse effects; D008954:Models, Biological; D010083:Oxidants, Photochemical / Q000493:pharmacokinetics / Q000633:toxicity*; D010126:Ozone / Q000493:pharmacokinetics / Q000633:toxicity*; D028223:Pinus / Q000187:drug effects* / Q000378:metabolism; D018515:Plant Leaves / Q000187:drug effects / Q000378:metabolism; D012621:Seasons; D036226:Seedlings / Q000187:drug effects / Q000378:metabolism
D010083:Oxidants, Photochemical; D010126:Ozone