Stem hydraulic conductance of European beech (Fagus sylvatica L.) and pedunculate oak (Quercus robur L.) grown in elevated CO2

Heath, J and Tyree, M T and Kerstiens, Gerhard (1997) Stem hydraulic conductance of European beech (Fagus sylvatica L.) and pedunculate oak (Quercus robur L.) grown in elevated CO2. Journal of Experimental Botany, 48 (312). pp. 1487-1489. ISSN 1460-2431

Abstract

Over two seasons in c. 600 ppm CO2, oak had lower stomatal conductance in CO2-enriched compared to ambient air, Beech showed no response to CO2 concentration on sunny days, Mirroring this pattern, exposure to elevated CO2 reduced whole-shoot hydraulic conductance per unit leaf area in oak, but not in beech.