Influence of ozone on the photosynthesis of mature trees under natural conditions

Journal Article · Wed Jan 01 04:00:00 EST 1975 · Bull. Ecol. Soc. Am.; (United States)

OSTI ID:5120747

Doolittle, Jr, A M

Field measurements of photosynthetic rates were made for mature Sugar maple (Acer saccharum) and White ash (Fraxinus americana) trees exposed to ozone. Ozone levels approaching ambient air concentrations were used. A low cost computer system was designed and built to measure photosynthesis as well as monitor environmental factors. Low levels of ozone were found to greatly decrease the photosynthetic rate of White ash while moderately affecting Sugar maple. The advantages of using computers for remote field studies are discussed.

• Research Organization: Yale Univ., New Haven, CT
• OSTI ID: 5120747
• Journal Information: Bull. Ecol. Soc. Am.; (United States), Journal Name: Bull. Ecol. Soc. Am.; (United States) Vol. 56:2; ISSN BECLA
• Country of Publication: United States
• Language: English

Related Subjects

500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
COMPUTER CALCULATIONS
INHIBITION
MAPLES
OZONE
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PLANTS
SYNTHESIS
TOXICITY
TREES