Details

Autor(en) / Beteiligte

• Hoshika, Yasutomo
• Hajima, Tomohiro
• Shimizu, Yo
• Takigawa, Masayuki
• Omasa, Kenji

Titel

Estimation of stomatal ozone uptake of deciduous trees in East Asia

Ist Teil von

• Annals of forest science., 2011-04, Vol.68 (3), p.607-616

Ort / Verlag

Paris: Springer-Verlag

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• • Background To assess ozone risks to temperate deciduous forest trees in East Asia, the stomatal ozone uptake was estimated based on a flux-based modeling approach. • Methods In this model, key parameters were obtained from scientific literatures on deciduous tree species in East Asia. In addition, regional characteristics of the leaf duration were estimated using a phenological model. • Results The result showed a difference in spatial pattern between AF st 0 (accumulative stomatal ozone uptake) and AOT40 (accumulative exposure above a threshold concentration of 40 ppb during daylight hours). Although most of the areas of high ozone concentration corresponded to humid climate areas, not only the ozone concentration, but also the length of the leaf duration and the species-specific stomatal response to environmental factors, limited AF st 0 in East Asia. • Conclusion These results suggested that an approach based on stomatal ozone uptake would be a useful tool for ozone risk assessment in East Asia.