Abstract
Seedlings were grown in 5 forest soils and exposed for 4 months to realistic levels of acid rain and ozone. Acid rain treatments consisted of exposure to simulated rain of pH 5.6, 4.0, 3.5 or 3.0, while ozone treatments consisted of exposure to 0.02, 0.06, 0.10 or 0.14 ppm ozone. Minimal interaction between acid rain and ozone was observed with regard to photosynthesis or growth. Acid rain and soil type has a strong interaction in determining plant response. In general, acid rain caused increased growth and net photosynthesis as a result of N fertilization from the simulated rain, but the extent of this response was inversely correlated with the availability of nitrogen in each soil. Ozone treatments caused decreased net photosynthesis in pine seedlings. -from Authors
| Original language | English (US) |
|---|---|
| Pages (from-to) | 977-987 |
| Number of pages | 11 |
| Journal | Botany |
| Volume | 65 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1987 |
| Externally published | Yes |
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