https://doi.org/10.4081/ija.2008.35

Upscaling Ozone Flux in Forests from Leaf to Landscape

Vol. 3 No. 1 (2008)
Submitted: 29 October 2010
Accepted: 29 October 2010
Published: 31 March 2008
Abstract Views: 1104
PDF: 657
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Although stomatal conductance for ozone (O3) correlates with leaf to air water vapor difference (VPDLA) at the leaf level, uncertainty in up-scaling to the whole tree level can be overcome by means of sap flow measurements at the tree trunk. Further up-scaling to the stand level is possible by relating whole tree O3 flux to silvicultural and/or tree-allometric data. In such a way, canopy conductance and O3 uptake can be related to ground surface area. When normalized, canopy conductance is demonstrated to follow a functional relationship to VPDLA across several forest ecosystems thus allowing a generalization of model approaches. Further up-scaling to the landscape level, however, needs further investigations due to differences in the response of canopy conductance to environmental drivers in forest stands and grassland ecosystems, respectively.

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How to Cite

Wieser, G., & Matyssek, R. (2008). Upscaling Ozone Flux in Forests from Leaf to Landscape. Italian Journal of Agronomy, 3(1), 35–42. https://doi.org/10.4081/ija.2008.35

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