1987 annual group leader reports of the Integrated Forest Study

Technical Report · Wed Mar 01 04:00:00 EST 1989

DOI:https://doi.org/10.2172/6078581· OSTI ID:6078581

Lindberg, S. E.; Johnson, D. W. ^[1]

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1. eds.

The summaries contained in this report describe the trends in atmospheric deposition, canopy interactions, soil solution fluxes, and ecosystem budgets for the major chemical species studied. Preliminary results indicate several interesting trends across sites. The deposition estimates confirm the expected increase in atmospheric deposition at high elevation sites compared to lower elevation forests. Cloudwater interception, enhanced dry deposition due to high wind speeds, and increased rainfall due to this trend. At the other sites dry deposition was important in the input of all ions, particularly of the base cations and particularly at the dryer southeastern sites. The soil solution fluxes and ecosystem budget data illustrate the difficulties in predicting site status with respect to the degree of sulfate and nitrate leaching. The magnitude of nitrate leaching from each forest is not readily predicted by any single parameter. Similarly, the sulfur input/output budgets do not fit with any expected soil series effects on sulfur retention. However, patterns of aluminum and base cation leaching do appear to match predictions from theoretical soil solution considerations. 10 figs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6078581
• Report Number(s): ORNL/TM-11052; ON: DE89010307
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID NEUTRALIZING CAPACITY
AIR POLLUTION
ALTITUDE
ATMOSPHERIC PRECIPITATIONS
BIOLOGICAL EFFECTS
CANADA
CANOPIES
CHALCOGENIDES
CHEMISTRY
COMPARATIVE EVALUATIONS
DEPOSITION
DISSOLUTION
DOCUMENT TYPES
ECOSYSTEMS
EUROPE
FORESTS
LEACHING
LEVELS
MINERAL CYCLING
NITROGEN COMPOUNDS
NITROGEN OXIDES
NORTH AMERICA
NORWAY
OXIDES
OXYGEN COMPOUNDS
PH VALUE
POLLUTION
PROGRESS REPORT
SCANDINAVIA
SEA LEVEL
SEPARATION PROCESSES
SITE CHARACTERIZATION
SOILS
SORPTIVE PROPERTIES
SULFUR COMPOUNDS
SULFUR OXIDES
SURFACE PROPERTIES
TERRESTRIAL ECOSYSTEMS
USA
WATER CHEMISTRY
WESTERN EUROPE