title: Ozone flux over a Norway spruce forest and correlation with net ecosystem production.
abstract: Daily ozone deposition flux to a Norway spruce forest in Czech Republic was measured using the gradient method in July and August 2008. Results were in good agreement with a deposition flux model. The mean daily stomatal uptake of ozone was around 47% of total deposition. Average deposition velocity was 0.39 cm s(-1) and 0.36 cm s(-1) by the gradient method and the deposition model, respectively. Measured and modelled non-stomatal uptake was around 0.2 cm s(-1). In addition, net ecosystem production (NEP) was measured by using Eddy Covariance and correlations with O3 concentrations at 15 m a.g.l., total deposition and stomatal uptake were tested. Total deposition and stomatal uptake of ozone significantly decreased NEP, especially by high intensities of solar radiation.
authors.affiliation: Ekotoxa s.r.o.-Centre for Environment and Land Assessment, Otická 37, 746 01 Opava, Czech Republic. milos.zapletal@ekotoxa.cz
authors.forename: Miloš
authors.initials: M
authors.lastname: Zapletal
authors.forename: Pavel
authors.initials: P
authors.lastname: Cudlín
authors.forename: Petr
authors.initials: P
authors.lastname: Chroust
authors.forename: Otmar
authors.initials: O
authors.lastname: Urban
authors.forename: Radek
authors.initials: R
authors.lastname: Pokorný
authors.forename: Magda
authors.initials: M
authors.lastname: Edwards-Jonášová
authors.forename: Radek
authors.initials: R
authors.lastname: Czerný
authors.forename: Dalibor
authors.initials: D
authors.lastname: Janouš
authors.forename: Klára
authors.initials: K
authors.lastname: Taufarová
authors.forename: Zbyněk
authors.initials: Z
authors.lastname: Večeřa
authors.forename: Pavel
authors.initials: P
authors.lastname: Mikuška
authors.forename: Elena
authors.initials: E
authors.lastname: Paoletti
mesh_terms: D000393:Air Pollutants / Q000032:analysis* / Q000378:metabolism; D018533:Biomass; D018153:Czech Republic; D008956:Models, Chemical; D010126:Ozone / Q000032:analysis* / Q000378:metabolism; D028222:Picea / Q000254:growth & development*; D054046:Plant Stomata / Q000378:metabolism*; D014887:Weather
chemical_list: D000393:Air Pollutants; D010126:Ozone