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- Title
Effect of altitude and tree species on delta34S of deposited sulfur (Jezeri catchment, Czech Republic)
- Authors
Novak, M.; Havel, M.; Groscheova, H.; Cerny, J.
- Abstract
Precipitation totals, SO42- concentrations and delta34S ratios were measured in bulk (open area) deposition, beech (with some birch and ash) and spruce throughfall at 17 locations in the heavily polluted mountain-slope Jezeri catchment (490-924 m asl) over a 12-month period. Stream water S was analyzed monthly at seven altitudes. The delta34S ratios decreased in the order: bulk > beech > spruce > stream (1995 annual means across all altitudes were 5.7, 5.1, 4.2 and 4.0 parts per thousand, respectively). The differences werecaused by different intensities of scavenging of isotopically distinct pollution-derived SO2 by tree canopies. The delta34S ratios of bulk deposition increased and delta34S ratios of spruce throughfall decreased with increasing altitude. The elevational gradients in delta34S ratios reflected the changing roles of local vs. distant air pollution sources along the slope.
- Subjects
ACIDIFICATION; ATMOSPHERIC deposition; BIOGEOCHEMISTRY; FORESTS &; forestry; SULFUR
- Publication
Water, Air & Soil Pollution, 1998, Vol 105, Issue 1-2, p295
- ISSN
0049-6979
- Publication type
Article