Factors controlling the rates of O3 uptake by spruce and beech : Air Pollution and Forest Decline. 14th International Meeting for Specialists in Air Pollution Effects on Forest Ecosystems

1989

3 Abb., 1 Tab., 9 Lit. Ang., En, Zfsg. En

Unselbständiges Werk

9091

200034747

Analysis of the whole shoot gas exchange of individual trees shows that physiological condition (dormancy or active growth), application of an antitranspirant and water availability influence the stomatal conductance and alter the uptake rates of O3 by spruce (Picea abies (L.) Karst, Picea sitchensis (Bong) Carr) and beech (Fagus sylvatica L.). Additionally the importance of the interacting effects of drought and pollutant exposure is indicated by the establishment of the influence of water availability on 03 utake, stomatal onductance and pollutant responses in open-top chambers.