The effects of ozone on a lower slope forest of the Great Smoky Mountain National Park: Simulations linking an individual tree model to a stand model
Weinstein DA, Golands B, Retzlaff WA. 2001. The effects of ozone on a lower slope forest of the Great Smoky Mountain National Park: Simulations linking an individual tree model to a stand model. Forest Science. 47:29-42
In this study, researchers use a tree physiology model, TREGRO, and a stand succession model, ZELIG to estimate the possible future ozone effects on a forest located in the Twin Creeks region in Great Smoky Mountains National Park. The study investigated yellow-poplar (Liriodendron tulipifera), red maple (Acer rubrum), and black cherry (Prunus serotina) since these species have been shown in experiments to have depressed photosynthetic rates as a result of ozone. The researchers were interested in the long-term effects of ozone on the species abundance and forest basal area--using TREGRO to examine changes in ozone photosynthetic rate, extrapolating from seedling to mature tree, and Zelig to estimate any reduction in the supply of carbon and the effect on competition between individual trees. Results showed that current ambient levels of ozone measured at mid-elevations were predicted to reduce the abundance of yellow-poplar by 10% over the next 100 years. An increase of ozone of 50% above current levels was predicted to decrease yellow-poplar abundance by 30%.
- Type
- Journal Article
- Authors
- Weinstein, D; Golands, B; Retzlaff, W
- Units
- ARD , GRSM
- Keywords
- Acer rubrum, AIRBIB, ARD_Park-Air-Info_Collection, Competition, Forest, Great Smoky Mountains National Park, Growth, GRSM-01626, Liriodendron tulipifera, Ozone, Prunus serotina, tregro, ZELIG