Acidic deposition: State of science and technology. Report 16. Changes in forest health and productivity in the United States and Canada. Final report
The report reviews available information about forest health problems in the United States and Canada, with special attention to the possible involvement of acidic deposition and associated pollutants. Available information indicates that most forests in the United States and Canada are health. There is no evidence of a general decline of forests due to acidic deposition or any other stress factor. Acidic deposition has not been ruled out as a potential cause of future subregional forest nutrition problems through effects on elemeqnt cycling. There is also experimental evidence that acidic deposition and associated pollutants can alter the resistance of red spruce to winter injury. Through this mechanism, acidic deposition may have contributed to dieback and mortality of red spruce at high elevations in the northern Appalachians. Ozone is an important factor in a decline of pines in southern California and is the pollutant of greatest concern with respect to possible regional scale impacts on North American forests.
- Research Organization:
- National Acid Precipitation Assessment Program, Washington, DC (United States)
- OSTI ID:
- 5447818
- Report Number(s):
- PB-92-100528/XAB
- Resource Relation:
- Other Information: Also available from Supt. of Docs. See also Report 15, PB92-100510 and Report 17, PB92-100536. Prepared in cooperation with Council on Environmental Quality, Washington, DC
- Country of Publication:
- United States
- Language:
- English
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01 COAL, LIGNITE, AND PEAT
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACID RAIN
DEPOSITION
CANADA
FORESTS
PRODUCTIVITY
USA
ACIDIFICATION
ENVIRONMENTAL EFFECTS
FORECASTING
OZONE
PINES
SPRUCES
US NAPAP
ATMOSPHERIC PRECIPITATIONS
CONIFERS
DEVELOPED COUNTRIES
NATIONAL ORGANIZATIONS
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PINOPHYTA
PLANTS
RAIN
TREES
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