Bulk deposition and throughfall fluxes of elements in the Bohemian Forest (central Europe) from 1998–2009

0360222 - BC 2012 RIV FI eng J - Journal Article
Kopáček, Jiří - Turek, Jan - Hejzlar, Josef - Porcal, Petr
Bulk deposition and throughfall fluxes of elements in the Bohemian Forest (central Europe) from 1998–2009.
Boreal Environment Research. Roč. 16, č. 6 (2011), s. 495-508. ISSN 1239-6095. E-ISSN 1797-2469
R&D Projects: GA ČR(CZ) GA206/07/1200; GA ČR(CZ) GA526/09/0567
Institutional research plan: CEZ:AV0Z60170517
Keywords : precipitation * throughfall * nitrogen * sulphate * phosphorus
Subject RIV: DI - Air Pollution ; Quality
Impact factor: 1.803, year: 2011

We measured element concentrations and fluxes in bulk precipitation (two sites) and throughfall (four sites) in Norway spruce mountain stands in the Bohemian Forest (Czech Republic) from 1991–2009, with the aim to evaluate net atmospheric inputs of nutrients to the area, and long-term trends in acidic deposition. The average net atmospheric inputs of nutrients were 11, 4, 9, 62, 62, 45, 26, and 0.7-1.3 mmol/m2/yr for Ca, Mg, K, nitrate, ammonium, total organic N, S, and total P (TP), respectively. The TP deposition was affected by a notable contribution from local dust and pollen sources. Throughfall pH increased from 3.6–3.7 in 1991–1994 to 4.7–5.0 in 2006–2009, due to average declines in the sulphate plus nitrate concentrations by 202 µeq/l and the H concentration by 147 µeq/l. The decline in throughfall concentrations of sulphate (by 184 µeq/l) was the dominant driving force for the pH increase.
Permanent Link: http://hdl.handle.net/11104/0197823