title: Modeling stomatal conductance and ozone uptake of Fagus crenata grown under different nitrogen loads.
abstract: A multiplicative stomatal conductance model was constructed to estimate stomatal O3 uptake of Fagus crenata exposed to O3 under different N loads to the soil. Our stomatal conductance model included environmental functions such as the stomatal responses of F. crenata to diurnal changes, chronic O3 stress (AOT0), acute O3 stress (O3 concentration), and nitrogen load to soil. The model could explain 62% of the variability in stomatal conductance. We suggest therefore that stomatal closure induced by O3 and N load-induced soil acidification must be taken into account in developing a stomatal conductance model for estimating stomatal O3 uptake for future risk assessment of O3 impact on Japanese forest tree species such as F. crenata.
authors.affiliation: The United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Fumika
authors.initials: F
authors.lastname: Azuchi
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Kinose
authors.forename: Tomoe
authors.initials: T
authors.lastname: Matsumura
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Kanomata
authors.forename: Yui
authors.initials: Y
authors.lastname: Uehara
authors.forename: Ayumi
authors.initials: A
authors.lastname: Kobayashi
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yamaguchi
authors.forename: Takeshi
authors.initials: T
authors.lastname: Izuta
mesh_terms: D000393:Air Pollutants / Q000378:metabolism* / Q000633:toxicity; D029964:Fagus / Q000187:drug effects* / Q000502:physiology; D008954:Models, Biological; D009584:Nitrogen / Q000378:metabolism*; D010126:Ozone / Q000378:metabolism* / Q000633:toxicity; D054046:Plant Stomata / Q000502:physiology*; D012987:Soil / Q000737:chemistry
chemical_list: D000393:Air Pollutants; D012987:Soil; D010126:Ozone; D009584:Nitrogen
keywords: Fagus crenata; Nitrogen deposition; Ozone uptake; Soil acidification; Stomatal conductance