Ozone exposure, uptake, and response of different-sized black cherry trees

Fredericksen, Todd S. and Skelly, John M. and Steiner, Kim C. and Kolb, Thomas E. (1996) Ozone exposure, uptake, and response of different-sized black cherry trees. In: Proceedings, 1995 meeting of the Northern Global Change Program; 1995 March 14-16; Pittsburgh, PA. : Introduction/Environmental Change. General Technical Report . U.S. Forest Service, Pittsburgh, PA, pp. 38-40.

Preview

Text Fredericksen_T_etal_1994_Ozone_Exposure_Uptake_and_Response_of_Different_sized_black_cherry_trees.pdf - Published Version Download (631kB) | Preview

Abstract

Differences in exposure, uptake and relative sensitivity to ozone between seedling, sapling, and canopy black cherry (Prunus serotina Ehrh.) trees were characterized during two growing seasons in north central Pennsylvania. Open-grown trees of all sizes received a similar amount of ozone exposure. Seedlings had greater foliar ozone injury, expressed as adaxial stipple and early leaf senescence, than larger trees, which was correlated with their higher rates of stomatal conductance and greater rates of ozone uptake. The higher stomatal conductance and ozone uptake of seedlings was proportional to their higher (less negative) predawn xylem water potentials. Seedlings appeared to have some ability to compensate for injury because their free growth habit reduced exposure per unit leaf area compared to larger trees whose leaves were exposed to ozone throughout the entire growing season.

Item Type:	Book Section
Keywords:	black cherry trees, ozone, ozone uptake, stomatal conductance
Subjects:	S Agriculture > SD Forestry
NAU Depositing Author Academic Status:	Faculty/Staff
Department/Unit:	Research Centers > Ecological Restoration Institute College of Engineering, Forestry, and Natural Science > School of Forestry
Date Deposited:	03 Jul 2018 17:55
URI:	http://openknowledge.nau.edu/id/eprint/2945

Actions (login required)

IR Staff Record View

Downloads