Sub-canopy deposition of ozone in a stand of cutleaf coneflower
Finkelstein PL, Davison AW, Neufeld HS, Meyers TP, Chappelka AH. 2004. Sub-canopy deposition of ozone in a stand of cutleaf coneflower. Environmental Pollution. 131:295-303
The ozone exposure of a plant is expressed in terms of the concentration above the canopy or as a time-weighted index. According to the researchers, in order to understand the physiological effects of ozone, it is necessary to quantify the ozone flux to individual leaves as they develop. This requires knowing the deposition velocity and concentration of the pollutant as a function of height throughout the plant canopy. The researchers used a high-order closure model of subcanopy turbulence to estimate ozone profiles in two stands of cutleaf coneflower (Rudbeckia laciniata) located at the Purchase Knob at Great Smoky Mountains National Park, USA.
- Type
- Journal Article
- Authors
- Finkelstein, P; Davison, A; Neufeld, H; Meyers, T; Chappelka, A
- Units
- ARD , GRSM
- Keywords
- AIRBIB, ARD_Park-Air-Info_Collection, cutleaf coneflower, Deposition, GRSM-00030, GRSM-00269, Ozone, ozone exposure, ozone flux, physiological effects