Proceedings of the International Symposium on Air Pollution and Climate Change Effects on Forest EcosystemsAuthor(s): Andrzej Bytnerowicz; Michael J. Arbaugh; Susan L. Schilling
Source: Gen. Tech. Rep. PSW-GTR-166. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 332 p
Publication Series: General Technical Report (GTR)
Station: Pacific Southwest Research Station
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DescriptionIndustrial air pollution has been identified as one of the primary causes of severe damage to forests of central Europe in the past 30 to 40 years. The mountain forest ecosystems have been affected considerably, resulting in extensive areas of severely deteriorated forest stands (e.g., the Krusne Hory of the Czech Republic or the Izerske and Sudety Mountains along the Polish and Czech border). In addition, the increase of motor vehicles in central Europe has caused a higher amount of nitrogen oxide and hydrocarbon emissions. Under particular weather conditions (high solar radiation, high temperatures, temperature inversions), these compounds may undergo complex chemical transformations resulting in the formation of photochemical smog and a buildup of potentially phytotoxic ozone concentrations. Ozone has already been responsible for injury to ponderosa pine stands in the San Bernardino Mountains in southern California and to forest vegetation in the eastern United States and western Europe. Elevated concentrations of nitrogenous components in photochemical smog and the emissions of ammonia from agricultural activities have caused eutrophication of natural ecosystems, including forests, both in Europe and North America. In addition, changing climatic factors, especially the amount of precipitation, temperature and solar radiation (including ultraviolet-B), modify responses of plants to air pollution, and must be considered when these effects are evaluated.
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CitationBytnerowicz, Andrzej; Arbaugh, Michael J.; Schilling, Susan L., technical coordinators. 1998. Proceedings of the International Symposium on Air Pollution and Climate Change Effects on Forest Ecosystems, February 5-9, 1996. Riverside, CA. Gen. Tech. Rep. PSW-GTR-166. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 332 p
Keywordseffects on forests, monitoring, nitrogen deposition, ozone, sulfur dioxide
- Photochemical smog effects in mixed conifer forests along a natural gradient of ozone and nitrogen deposition in the San Bernardino Mountains
- Increased site fertility and litter decomposition rate in high-pollution sites in the San Bernardino Mountains
- Dry deposition of nitrogen and sulfur to ponderosa and jeffrey pine in the San Bernardino National Forest in southern California
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