Atmospheric deposition, forest nutrient status, and forest decline: Implications of the Integrated Forest Study

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5969120

Johnson, D W ^[1]; Lindberg, S E; Van Miegroet, H ^[2]; Lovett, G M ^[3]; Cole, D W ^[4]; Mitchell, M J ^[5]; Binkley, D ^[6]

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1. Nevada Univ., Reno, NV (United States). Desert Research Inst.
2. Oak Ridge National Lab., TN (United States)
3. Cary Arboretum, Millbrook, NY (United States)
4. Washington Univ., Seattle, WA (United States)
5. State Univ. of New York, Syracuse, NY (United States)
6. Colorado State Univ., Fort Collins

The results of the Integrated Forest Study, an analysis of the effects of atmospheric deposition on the nutrient cycles of 21 sites in the US, Canada, and Norway, are reviewed. Atmospheric deposition was greatest in the high-elevation sites in the southeastern US (Smoky Mountains) and lowest in the relatively unpolluted sites in the Northwestern US Dry and/or cloudwater deposition accounted for a considerable proportion of total deposition in all sites. With the possible exception of high-elevation sites in the southeastern US, deposition of acidity poses little potential for depleting foliar cation pools, and ozone exposure had little effect on canopy leaching. Atmospherically deposited sulfur and nitrogen were studied as were short- and long-term retention and leaching. The only possible connection between atmospheric deposition and forest decline was in red spruce sites in the Smoky Mountains, where nitrate pulses causes soil solution Al to reach levels known to cause reduced base cation uptake and changes in root morphology. There was no evidence of nutritional causes in the declining forest of Whiteface Mountain, New York. 31 refs., 10 figs., 1 tab.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: EPRI; DOI; Electric Power Research Inst., Palo Alto, CA (United States); Department of the Interior, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5969120
• Report Number(s): CONF-9106320-1; ON: DE92005101
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ADSORPTION
CANADA
CANOPIES
CATIONS
CHARGED PARTICLES
CHEMISTRY
CONIFERS
DEPOSITION
DEVELOPED COUNTRIES
DISSOLUTION
ECOSYSTEMS
ELEMENTS
ENVIRONMENTAL IMPACTS
EUROPE
FORESTS
IONS
LEACHING
NITROGEN
NITROGEN CYCLE
NONMETALS
NORTH AMERICA
NORWAY
NUTRIENTS
PH VALUE
PINOPHYTA
PLANTS
POLLUTION
RETENTION
SCANDINAVIA
SEPARATION PROCESSES
SOIL CHEMISTRY
SOILS
SORPTION
SPRUCES
SULFUR
TREES
US EAST COAST
USA