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- Myles, LaToya, et al. Show all 3 Authors
- The Science of the total environment 2011 v.409 no.14 pp. 2768-2772
- air quality; air temperature; ammonia; ecosystems; environmental impact; forests; highways; rural areas; summer; topography; valleys; wind direction; Tennessee
- ... Atmospheric ammonia has been shown to degrade regional air quality and affect environmental health. In-situ measurements of ammonia are needed to determine how ambient concentrations vary in different ecosystems and the extent to which emission sources contribute to those levels. The objective of this study was to measure and compare ammonia concentrations in two Tennessee Valley (USA) ecosystems: ...
- Myles, LaToya, et al. Show all 4 Authors
- Journal of environmental quality 2011 v.40 no.5 pp. 1359-1365
- ammonia; apoplast; canopy; crops; dew; diffusivity; eddy covariance; gases; leaves; meteorology; nitric acid; soybeans; stomatal conductance; sulfur dioxide; temperature; temporal variation; vegetation
- ... Trace gas fluxes exhibit extensive spatial and temporal variability that is dependent on a number of factors, including meteorology, ambient concentration, and emission source size. Previous studies have found that agricultural fertilization contributes to higher fluxes of certain gases. The magnitude of trace gas fluxes over unfertilized crops is still uncertain. In the present study, deposition ...