Separation of gaseous and particulate dry deposition of sulfur at a forest edge in Denmark. [Picea abies L]

Journal Article · · Journal of Environmental Quality; (United States)

OSTI ID:5231627

Beier, C ^[1]

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1. Technical Univ. of Denmark, Lyngby (Denmark)

Throughfall deposition of SO{sub 4}{sup {minus}2} and Na{sup +} to a spruce (Picea abies (L.) Karst.) forest edge in Denmark was measured during 1 yr. The deposition of both SO{sub 4}{sup {minus}2} and Na{sup +} was highly elevated at the forest edge with Na{sup +} showingthe steepest gradient. Using Na{sup +} as a model-substance for the deposition of particles and assuming that 6 to 24% of the SO{sub 4}{sup {minus}2} deposition in throughfall inside the stand originated from particles, the relative contribution of particulate and gaseous S to the throughfall deposition at the forest edge could be estimated. The deposition of particulate S showed a strong dependence on the distance to the forest edge. Thus, particulate S contributed 25 to 100% of the net throughfall deposition under the front tree, whereas particulate S only contributed 6 to 24% inside the stand. The gaseous deposition showed a more moderate dependence on the forest edge and did not exceed the change in leaf area index.

• OSTI ID: 5231627
• Journal Information: Journal of Environmental Quality; (United States), Journal Name: Journal of Environmental Quality; (United States) Vol. 20:2; ISSN JEVQA; ISSN 0047-2425
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ALKALI METAL COMPOUNDS
ATMOSPHERIC CHEMISTRY
CHEMISTRY
DENMARK
DEPOSITION
DEVELOPED COUNTRIES
EUROPE
FORESTS
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
SCANDINAVIA
SODIUM COMPOUNDS
SULFATES
SULFUR COMPOUNDS
THROUGHFALL