Separation of Gaseous and Particupate Dry Deposition of Sulfur at a Forest Edge in Denmark
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Throughfall deposition of SO2−4 and Na+ to a spruce [Picea abies (L.) Karst.] forest edge in Denmark was measured during 1 yr. The deposition of both SO2−4 and Na* was highly elevated at the forest edge with Na+ showing the steepest gradient. Using Na+ as a model-substance for the deposition of particles and assuming that 6 to 24% of the SO2−4-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.
Originalsprog | Engelsk |
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Tidsskrift | Journal of Environmental Quality |
Vol/bind | 20 |
Udgave nummer | 2 |
Sider (fra-til) | 460-466 |
ISSN | 0047-2425 |
DOI | |
Status | Udgivet - 1991 |
Eksternt udgivet | Ja |
ID: 347878050