Evaluating ozone air pollution effects on pines in the western United States

Abstract

Historical and technical background is provided about ozone air pollution effects on ponderosa (Pinus ponderosa Dougl. ex Laws) and Jeffrey (P. jeffreyi Grev. and Balf.) pines in forests of the western United States. The principal aim is to document the development of field survey methods to be applied to assessment of chronic ozone injury by government agencies responsible for management of forest and air resources, primarily in the Sierra Nevada and mountains of southern California. Detailed procedures are supplied for the selection of sample plots, collection of plot and tree data, computation of an injury index for each tree and execution of quality assurance procedures. The methods have been field tested in California National Forests and National Parks during 4 consecutive years.

Titles contained within Evaluating ozone air pollution effects on pines in the western United States

• Extent of ozone injury to trees in the western United States
• Government agencies' need for data on ozone injury to western pines
• Symptomology of ozone injury to pine foliage
• History of ozone injury monitoring methods and the development of a recommended protocol
• Statistical considerations for plot design, sampling procedures, analysis, and quality assurance of ozone injury studies
• Establishment of monitoring plots and evaluation of trees injured by ozone
• Data management and analysis of ozone injury to pines
• Quality assurance, training, and certification in ozone air pollution studies

Citation

Miller, Paul R.; Stolte, Kenneth W.; Duriscoe, Daniel M.; Pronos, John, technical coordinators. 1996. Evaluating ozone air pollution effects on pines in the western United States. Gen. Tech. Rep. PSW-GTR-155. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; 79 p