Publication Summary


Luxmoore, R. J., S. M. Pearson, M. L. Tharp, and S. B. McLaughlin. 1998. Scaling up physiological responses of loblolly pine to ambient ozone exposure under natural weather variation. Chpt. 23, pp.407-428 In: R. A. Mickler and S. Fox (eds.), The Productivity and Sustainability of Southern Forest Ecosystems in a Changing Environment. Springer, New York. 892p.


Ambient ozone effects on physiological processes of loblolly pine are simulated with hourly time step simulations in a soil-plant model (UTM) to generate annual stem wood increment responses. These stem wood responses are passed to a stand dynamics model (FORET) to simulate the height of dominant and co-dominant trees at a 25-year index age. Site index responses are forwarded to a plantation management model (PTAEDA2), which predicts a 6% reduction in lumber yield from ambient ozone. This scaling up approach is used in an expanded form in the Integrated Modeling Project.