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The Solling roof revisited - slow recovery from acidification observed and modeled despite a decade of "clean-rain" treatment

Fransson, Liisa LU ; Lamersdorf, N and Warfvinge, Per LU (2005) In Environmental Pollution 135(2). p.293-302
Abstract
Soil chemistry under the Solling clean-rain roof was simulated using the dynamic multi-layer soil chemistry model SAFE, including sulfate adsorption. Soil was sampled in order to parameterize the pH and sulfate concentration dependent sulfate adsorption isotherm used in SAFE. Modeled soil solution chemistry was compared to the 14 year long time-series of monthly measurements of soil solution data at 10 and 100 cm depth. The deposition of N and S under the roof has been reduced by 68% and 53%, respectively, compared to the surrounding area. Despite this the soil solution concentrations of sulfate are still high (a median of 420 mu mol(c)/L at 100 cm depth between 2000 and 2002) and the soil base saturation low (approximately 3 % in the... (More)
Soil chemistry under the Solling clean-rain roof was simulated using the dynamic multi-layer soil chemistry model SAFE, including sulfate adsorption. Soil was sampled in order to parameterize the pH and sulfate concentration dependent sulfate adsorption isotherm used in SAFE. Modeled soil solution chemistry was compared to the 14 year long time-series of monthly measurements of soil solution data at 10 and 100 cm depth. The deposition of N and S under the roof has been reduced by 68% and 53%, respectively, compared to the surrounding area. Despite this the soil solution concentrations of sulfate are still high (a median of 420 mu mol(c)/L at 100 cm depth between 2000 and 2002) and the soil base saturation low (approximately 3 % in the whole profile in 1998). Sulfate adsorption is an important process in Solling. The soil capacity to adsorb sulfate is large, the modeled adsorbed pool in 2003 down to 100 cm was 1030 kg S/ha, and the measured sulfate concentration is high, due to release of adsorbed sulfate. The addition of sulfate adsorption improved the modeled sulfate dynamics although the model still slightly underestimated the sulfate concentration at 100 cm. Model predictions show no recovery, based on the criteria of Bc/Al ratio above 1 in the rooting zone, before the year 2050, independent of future deposition cuts. (c) 2004 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Environmental Pollution
volume
135
issue
2
pages
293 - 302
publisher
Elsevier
external identifiers
  • pmid:15734589
  • wos:000227695600011
  • scopus:14044279795
ISSN
0269-7491
DOI
10.1016/j.envpol.2004.09.022
language
English
LU publication?
yes
id
08811092-8846-4895-a88e-705d545356bd (old id 151720)
date added to LUP
2007-06-25 12:53:41
date last changed
2017-01-01 07:15:56
@article{08811092-8846-4895-a88e-705d545356bd,
  abstract     = {Soil chemistry under the Solling clean-rain roof was simulated using the dynamic multi-layer soil chemistry model SAFE, including sulfate adsorption. Soil was sampled in order to parameterize the pH and sulfate concentration dependent sulfate adsorption isotherm used in SAFE. Modeled soil solution chemistry was compared to the 14 year long time-series of monthly measurements of soil solution data at 10 and 100 cm depth. The deposition of N and S under the roof has been reduced by 68% and 53%, respectively, compared to the surrounding area. Despite this the soil solution concentrations of sulfate are still high (a median of 420 mu mol(c)/L at 100 cm depth between 2000 and 2002) and the soil base saturation low (approximately 3 % in the whole profile in 1998). Sulfate adsorption is an important process in Solling. The soil capacity to adsorb sulfate is large, the modeled adsorbed pool in 2003 down to 100 cm was 1030 kg S/ha, and the measured sulfate concentration is high, due to release of adsorbed sulfate. The addition of sulfate adsorption improved the modeled sulfate dynamics although the model still slightly underestimated the sulfate concentration at 100 cm. Model predictions show no recovery, based on the criteria of Bc/Al ratio above 1 in the rooting zone, before the year 2050, independent of future deposition cuts. (c) 2004 Elsevier Ltd. All rights reserved.},
  author       = {Fransson, Liisa and Lamersdorf, N and Warfvinge, Per},
  issn         = {0269-7491},
  language     = {eng},
  number       = {2},
  pages        = {293--302},
  publisher    = {Elsevier},
  series       = {Environmental Pollution},
  title        = {The Solling roof revisited - slow recovery from acidification observed and modeled despite a decade of "clean-rain" treatment},
  url          = {http://dx.doi.org/10.1016/j.envpol.2004.09.022},
  volume       = {135},
  year         = {2005},
}