How sensitive are forest trees to ozone? - New research on an old issue

Matyssek, Rainer; Wieser, Gerhard; Nunn, Angela J.; Löw, Markus; Then, Christiane; Herbinger, K.; Blumenröther, M.; Jehnes, Sascha; Reiter, Ilja M.; Heerdt, Christian; Koch, N.; Häberle, Karl‐Heinz; Haberer, Kris; Werner, H.; Tausz, Michael; Fabian, P.; Rennenberg, Heinz; Grill, D.; Oßwald, Wolfgang

doi:10.1007/4-431-31014-2_3

Cited by 11 publications

(8 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This underlines the need for weighting, in risk assessment, O 3 uptake by using estimates of O 3 defence (Musselman et al, 2006;Tausz et al, 2006). Chronic O 3 impact and episodic drought contrasted in their effect on bole growth (Löw et al, 2006;Matyssek et al, 2006 c), reflecting the different ecophysiological significance of these two kinds of stress for tree development.…”

Section: Discussionmentioning

confidence: 93%

“…Medical Dictionary, 2003; except for potential direct O 3 impact on guard cells), the assessment of the O 3 flux through stomata and its seasonal integration which renders the physiologically relevant O 3 uptake and dose (Matyssek et al, 2004;Musselman et al, 2006) were of major interest. Hence, stomatal regulation, being a determinant of O 3 uptake in leaf gas exchange, represented a link between the cell and organ level and demanded for attention, in particular, during the dry summer of 2003 (Ciais et al, 2005;Nunn et al, 2005 b;Löw et al, 2006;Matyssek et al, 2006 c). In addition, O 3 uptake is increasingly recognized as important for cause-effect-related O 3 risk assessment in forest trees (Ashmore et al, 2004;Uddling et al, 2004; Ma- gives SUM0 as the annual integral of mean hourly O 3 levels, lower graph gives AOT40 as the annual integral of differences between hourly means of O 3 levels > 40 nl l -1 and the 40 nl l -1 threshold (Fuhrer et al, 1997).…”

Section: Parameters Assessedmentioning

confidence: 99%

“…The following section outlines the major outcome of the subsequent papers in this issue that originated from the CASIROZ study at Kranzberger Forst. (Ciais et al, 2005;Matyssek et al, 2006 c) to examine the O 3 responsiveness of adult beech under co-occurring stress by soil moisture deficit. In June 2003, stomatal conductance (g s ) was already reduced under 2 × O 3 before the onset of drought, although this O 3 effect vanished upon progressive water limitation and stomatal closure in both O 3 regimes during the subsequent months (Löw et al, 2006).…”

Section: Parameters Assessedmentioning

confidence: 99%

“…Drought enhanced the O 3 sensitivity, in particular, of sun leaves, although O 3 uptake did not correlate during 2003 with high O 3 exposure (Löw et al, 2006;Matyssek et al, 2006 c) because of drought-induced closure of stomata (Nunn et al, 2005 b). High O 3 sensitivity at restricted O 3 intake indicated that the "physiologically effective O 3 dose" differed from the "physical dose" resulting from O 3 uptake (Matyssek et al, 2004Musselman et al, 2006;Tausz et al, 2006).…”

Section: Consistency Of Findings Across Tree-internal Scaling Levels mentioning

confidence: 99%

See 3 more Smart Citations

Synopsis of the CASIROZ Case Study: Carbon Sink Strength of Fagus sylvatica L. in a Changing Environment ‐ Experimental Risk Assessment of Mitigation by Chronic Ozone Impact

et al. 2007

View full text Add to dashboard Cite

Databases are needed for the ozone (O(3)) risk assessment on adult forest trees under stand conditions, as mostly juvenile trees have been studied in chamber experiments. A synopsis is presented here from an integrated case study which was conducted on adult FAGUS SYLVATICA trees at a Central-European forest site. Employed was a novel free-air canopy O(3) fumigation methodology which ensured a whole-plant assessment of O(3) sensitivity of the about 30 m tall and 60 years old trees, comparing responses to an experimental 2 x ambient O(3) regime (2 x O(3), max. 150 nl O(3) l (-1)) with those to the unchanged 1 x ambient O(3) regime (1 x O(3)=control) prevailing at the site. Additional experimentation on individual branches and juvenile beech trees exposed within the forest canopy allowed for evaluating the representativeness of young-tree and branch-bag approaches relative to the O(3) sensitivity of the adult trees. The 2 x O(3) regime did not substantially weaken the carbon sink strength of the adult beech trees, given the absence of a statistically significant decline in annual stem growth; a 3 % reduction across five years was demonstrated, however, through modelling upon parameterization with the elaborated database. 2 x O(3) did induce a number of statistically significant tree responses at the cell and leaf level, although the O(3) responsiveness varied between years. Shade leaves displayed an O(3) sensitivity similar to that of sun leaves, while indirect belowground O(3) effects, apparently mediated through hormonal relationships, were reflected by stimulated fine-root and ectomycorrhizal development. Juvenile trees were not reliable surrogates of adult ones in view of O(3) risk assessment. Branch sections enclosed in (climatized) cuvettes, however, turned out to represent the O(3) sensitivity of entire tree crowns. Drought-induced stomatal closure decoupled O(3) intake from O(3) exposure, as in addition, also the "physiologically effective O(3) dose" was subject to change. No evidence emerged for a need to lower the "Critical Level for Ozone" in risk assessment of forest trees, although sensitive tree parameters did not necessarily reflect a linear relationship to O(3) stress. Exposure-based concepts tended to overestimate O(3) risk under drought, which is in support of current efforts to establish flux-related concepts of O(3) intake in risk assessment.

show abstract

Section: Discussionmentioning

confidence: 93%

Section: Parameters Assessedmentioning

confidence: 99%

Section: Parameters Assessedmentioning

confidence: 99%

Section: Consistency Of Findings Across Tree-internal Scaling Levels mentioning

confidence: 99%

See 2 more Smart Citations

Synopsis of the CASIROZ Case Study: Carbon Sink Strength of Fagus sylvatica L. in a Changing Environment ‐ Experimental Risk Assessment of Mitigation by Chronic Ozone Impact

et al. 2007

View full text Add to dashboard Cite

show abstract

“…Ozone as accompanying agent of climate changes is also among key factors resulting in spatial and temporal changes of tree crown condition and productivity [13–18]. …”

Section: Introductionmentioning

confidence: 99%

Sensitivity of Beech Trees to Global Environmental Changes at Most North-Eastern Latitude of Their Occurrence in Europe

Augustaitis

Jasinevičienė²,

Girgždienė³

et al. 2012

The Scientific World Journal

View full text Add to dashboard Cite

The present study aimed to detect sensitivity of beech trees (Fagus sylvatica L.) to meteorological parameters and air pollution by acidifying species as well as to surface ozone outside their north-eastern distribution range. Data set since 1981 of Preila EMEP station enabled to establish that hot Summers, cold dormant, and dry and cold first-half of vegetation periods resulted in beech tree growth reduction. These meteorological parameters explained 57% variation in beech tree ring widths. Acidifying species had no significant effect on beech tree growth. Only ozone was among key factors contributing to beech stand productivity. Phytotoxic effect of this pollutant increased explanation rate of beech tree ring variation by 18%, that is, up to 75%. However, due to climate changes the warmer dormant periods alone are not the basis ensuring favourable conditions for beech tree growth. Increase in air temperature in June-August and decrease in precipitation amount in the first half of vegetation period should result in beech tree radial increment reduction. Despite the fact that phytotoxic effect of surface ozone should not increase due to stabilization in its concentration, it is rather problematic to expect better environmental conditions for beech tree growth at northern latitude of their pervasion.

show abstract

Case Study “Kranzberger Forst”: Growth and Defence in European Beech (Fagus sylvatica L.) and Norway Spruce (Picea abies (L.) Karst.)

Häberle

Weigt

Nikolova

et al. 2012

Growth and Defence in Plants

View full text Add to dashboard Cite

How sensitive are forest trees to ozone? - New research on an old issue

Cited by 11 publications

References 28 publications

Synopsis of the CASIROZ Case Study: Carbon Sink Strength of Fagus sylvatica L. in a Changing Environment ‐ Experimental Risk Assessment of Mitigation by Chronic Ozone Impact

Synopsis of the CASIROZ Case Study: Carbon Sink Strength of Fagus sylvatica L. in a Changing Environment ‐ Experimental Risk Assessment of Mitigation by Chronic Ozone Impact

Sensitivity of Beech Trees to Global Environmental Changes at Most North-Eastern Latitude of Their Occurrence in Europe

Case Study “Kranzberger Forst”: Growth and Defence in European Beech (Fagus sylvatica L.) and Norway Spruce (Picea abies (L.) Karst.)

Contact Info

Product

Resources

About