Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Photochemical Air Pollutant Effects on Mixed Conifer Ecosystems.
CORP Author California Univ., Riverside. Statewide Air Pollution Research Center.;Corvallis Environmental Research Lab., Oreg.
Year Published 1977
Report Number EPA-68-03-0273; EPA/600/3-77/058;
Stock Number PB-267 920
Additional Subjects Air pollution ; Ecosystems ; Forests ; California ; Forest trees ; Plants(Botany) ; Oxidizers ; Photochemistry ; Wildlife ; Mortality ; Beetles ; Climate ; Pathogens ; Epidemiology ; Soil analysis ; Topography ; Meteorology ; Particle size distribution ; Density(Mass/volume) ; Management planning ; Life span ; Reproduction(Biology) ; Decomposition ; Organic compounds ; Forecasting ; Computerized simulation ; Mathematical models ; Concentration(Composition) ; Air pollution effects(Plants) ; Air pollution effects(Animals) ; Litter ; Photochemical oxidants
Library Call Number Additional Info Location Last
NTIS  PB-267 920 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 300p
In 1972, a multi-disciplinary team of ecologists assembled to monitor and analyze some of the ecological consequences of photochemical oxidant air pollutants in California Mixed Conifer Forest ecosystems of the San Bernardino Mountains east of Los Angeles. The purposes included gathering documentary evidence on the impact on these forests, designing a computerized data management system to process the data, and constructing computer simulation models to project possible future consequences. Seven meteorological and air quality monitoring stations have been maintained, nineteen mountain study plots have been examined for air pollution injury to vegetation, and a variety of additional plots have been identified for studying soil conditions, tree growth and death, tree diseases, bark beetle interactions, needle litter build-up beneath trees, decay of dead wood in the forest, microarthropods in the litter, and microbial breakdown of pine needles. Additional work examines conifer tree seed production in relation to small mammal populations and oxidant levels, as well as long-term changes occurring in the kinds of trees present.