Isotope studies to determine dry deposition of sulfate to deciduous and coniferous trees: Final draft

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5447347

Garten, Jr, C T

Experiments have been conducted at two locations near Oak Ridge, Tennessee, with radioactive /sup 35/S (87 day half-life) to examine the cycling behavior of sulfur in yellow poplar (Liriodendron tulipifera), red maple (Acer rubrum), and loblolly pine (Pinus taeda) trees. Some findings pertain to methods development for estimating dry deposition of sulfur to forest canopies and the magnitude of sulfur emissions from natural sources (Task II). We will determine through field studies, the internal cycling, storage, and biogenic emission of sulfur, as traced by /sup 35/SO/sub 4//sup 2 -/, in environments impacted by atmospheric sulfate deposition; and will determine through isotope dilution studies, the contribution of foliar leaching and dry deposition to net throughfall (NTF) sulfate concentrations beneath deciduous and coniferous trees in such environments. 3 refs., 2 figs., 1 tab.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5447347
• Report Number(s): CONF-880351-1; ON: DE88006182
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL FUNCTIONS
BIOLOGICAL PATHWAYS
CANOPIES
CONIFERS
DAYS LIVING RADIOISOTOPES
DEPOSITION
EVEN-ODD NUCLEI
FOLIAR UPTAKE
FUNCTIONS
ISOTOPE APPLICATIONS
ISOTOPE DILUTION
ISOTOPES
LIGHT NUCLEI
MAPLES
NAPAP
NATIONAL ORGANIZATIONS
NATURAL OCCURRENCE
NUCLEI
OAK RIDGE RESERVATION
OXYGEN COMPOUNDS
PINES
PLANTS
POLLUTION
POPLARS
RADIOISOTOPES
SULFATES
SULFUR 35
SULFUR COMPOUNDS
SULFUR CYCLE
SULFUR ISOTOPES
THROUGHFALL
TRACER TECHNIQUES
TREES
UPTAKE
US DOE
US ERDA
US ORGANIZATIONS