Quantifying foliar responses of white ash to ozone and simulated acid precipitation : an assessment proposal for forest exposure studies / Leon S. Dochinger, Keith F. Jensen.

Format:

Book

Government document

Author/Creator:

Dochinger, Leon S., author.

Jensen, Keith F., author.

Contributor:

Northeastern Forest Experiment Station (Radnor, Pa.), issuing body.

United States. Forest Service, sponsoring body.

Series:

U.S. Forest Service research paper NE ; 641.

U.S. Forest Service research paper NE ; 641

Language:

English

Subjects (All):

White ash--Effect of ozone on--Northeastern States.

White ash.

White ash--Effect of acid precipitation on--Northeastern States.

Trees--Effect of ozone on--Northeastern States.

Trees.

Foliar diagnosis--Northeastern States.

Foliar diagnosis.

Trees--Effect of ozone on.

Northeastern States.

Physical Description:

1 online resource (4 pages) : illustrations.

Place of Publication:

Radnor, PA : United States Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, [1990]

Summary:

"Seedling populations represent an important linkage for assessing the effect of air pollution on forests. This study examines the foliar responses of white ash seedlings to ozone and acid precipitation as a means of identifying atmospheric deposition effects on forests. With white ash seedlings, regression analysis revealed significant increases in foliar stippling, with rising ozone concentrations from 7 to 15 pphm. No stippling occurred in the absence of ozone or with acid rain treatment alone. However, exposure to ozone plus acid rain resulted in higher levels of foliar stipple as treatment concentrations increased. Until the inherent problems relating to the determination of the potential effects of air pollution on forests are resolved, the use of quantitative indices of injury to foliage and related growth impairments on susceptible and tolerant seedlings appears useful for assessing long-term ambient pollution effects on seedlings, trees, and forests."

Notes:

Title from title screen (viewed June 27, 2013).

"April, 1990."

Includes bibliographical references (page 4).

Electronic reproduction. [Place of publication not identified] : HathiTrust Digital Library, 2010.

Other Format:

Print version: Dochinger, Leon S. Quantifying foliar responses of white ash to ozone and simulated acid precipitation

Online version: Dochinger, Leon S. Quantifying foliar responses of white ash to ozone and simulated acid precipitation

OCLC:

625598631

Access Restriction:

Use copy Restrictions unspecified