title: Response patterns in adult forest trees to chronic ozone stress: identification of variations and consistencies.
abstract: The responsiveness of adult beech and spruce trees to chronic O(3) stress was studied at a free-air O(3) exposure experiment in Freising/Germany. Over three growing seasons, gas exchange characteristics, biochemical parameters, macroscopic O(3) injury and the phenology of leaf organs were investigated, along with assessments of branch and stem growth as indications of tree performance. To assess response pattern to chronic O(3) stress in adult forest trees, we introduce a new evaluation approach, which provides a comprehensive, readily accomplishable overview across several tree-internal scaling levels, different canopy regions and growing seasons. This new approach, based on a three-grade colour coding, combines statistical analysis and the proficient ability of the "human eye" in pattern recognition.
authors.affiliation: Ecophysiology of Plants, TU München, Am Hochanger 13, D-85354 Freising, Germany. nunn@wzw.tum.de
authors.forename: Angela J
authors.initials: AJ
authors.lastname: Nunn
authors.forename: Ilja M
authors.initials: IM
authors.lastname: Reiter
authors.forename: Karl-Heinz
authors.initials: KH
authors.lastname: Häberle
authors.forename: Christian
authors.initials: C
authors.lastname: Langebartels
authors.forename: Günther
authors.initials: G
authors.lastname: Bahnweg
authors.forename: Hans
authors.initials: H
authors.lastname: Pretzsch
authors.forename: Heinrich
authors.initials: H
authors.lastname: Sandermann
authors.forename: Rainer
authors.initials: R
authors.lastname: Matyssek
mesh_terms: D000393:Air Pollutants / Q000633:toxicity*; D004784:Environmental Monitoring / Q000379:methods*; D029964:Fagus / Q000254:growth & development; D005858:Germany; D010126:Ozone / Q000633:toxicity*; D012621:Seasons; D064028:Tracheophyta / Q000254:growth & development; D014197:Trees / Q000254:growth & development*
chemical_list: D000393:Air Pollutants; D010126:Ozone