The importance of including the pH dependence of sulfate adsorption in a dynamic soil chemistry model
Fransson, Liisa LU and Alveteg, Mattias LU
(2004)
In Water, Air and Soil Pollution
154(1-4).
p.349-356
- Abstract
- Sulfate adsorption is an important process when modeling the dynamics of recovery from acidification. In the dynamic soil chemistry model SAFE sulfate adsorption is modeled by a pH and sulfate concentration dependent isotherm. This isotherm has been parameterized by fitting it to data from batch experiments on soil samples using multiple linear regression. The soil samples were from the B-horizon from three sites, two from the Lake Gardsjon area in south-west Sweden and one from southern Poland. The pH dependency of sulfate adsorption is important. The batch experiments show that the adsorbed amount, at a specific sulfate concentration, increases considerably with decreasing pH. This implies that the adsorbed pool of anthropogenic sulfate... (More)
- Sulfate adsorption is an important process when modeling the dynamics of recovery from acidification. In the dynamic soil chemistry model SAFE sulfate adsorption is modeled by a pH and sulfate concentration dependent isotherm. This isotherm has been parameterized by fitting it to data from batch experiments on soil samples using multiple linear regression. The soil samples were from the B-horizon from three sites, two from the Lake Gardsjon area in south-west Sweden and one from southern Poland. The pH dependency of sulfate adsorption is important. The batch experiments show that the adsorbed amount, at a specific sulfate concentration, increases considerably with decreasing pH. This implies that the adsorbed pool of anthropogenic sulfate in soils may remain fairly high during the recovery phase. Although a decrease of sulfate concentration is commonly seen, the modeled pH increase is often slow, and thus delays in the modeled desorption of anthropogenic sulfate can be expected. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/138881
- author
- Fransson, Liisa
LU
and Alveteg, Mattias
LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Water, Air and Soil Pollution
- volume
- 154
- issue
- 1-4
- pages
- 349 - 356
- publisher
- Springer
- external identifiers
-
- wos:000220674700024
- scopus:4944262904
- ISSN
- 1573-2932
- DOI
- 10.1023/B:WATE.0000022976.01342.2c
- language
- English
- LU publication?
- yes
- id
- 122a20fe-80e7-464a-8048-1df598cdf9c8 (old id 138881)
- date added to LUP
- 2016-04-01 12:28:49
- date last changed
- 2023-09-02 09:10:39
@article{122a20fe-80e7-464a-8048-1df598cdf9c8,
abstract = {{Sulfate adsorption is an important process when modeling the dynamics of recovery from acidification. In the dynamic soil chemistry model SAFE sulfate adsorption is modeled by a pH and sulfate concentration dependent isotherm. This isotherm has been parameterized by fitting it to data from batch experiments on soil samples using multiple linear regression. The soil samples were from the B-horizon from three sites, two from the Lake Gardsjon area in south-west Sweden and one from southern Poland. The pH dependency of sulfate adsorption is important. The batch experiments show that the adsorbed amount, at a specific sulfate concentration, increases considerably with decreasing pH. This implies that the adsorbed pool of anthropogenic sulfate in soils may remain fairly high during the recovery phase. Although a decrease of sulfate concentration is commonly seen, the modeled pH increase is often slow, and thus delays in the modeled desorption of anthropogenic sulfate can be expected.}},
author = {{Fransson, Liisa and Alveteg, Mattias}},
issn = {{1573-2932}},
language = {{eng}},
number = {{1-4}},
pages = {{349--356}},
publisher = {{Springer}},
series = {{Water, Air and Soil Pollution}},
title = {{The importance of including the pH dependence of sulfate adsorption in a dynamic soil chemistry model}},
url = {{http://dx.doi.org/10.1023/B:WATE.0000022976.01342.2c}},
doi = {{10.1023/B:WATE.0000022976.01342.2c}},
volume = {{154}},
year = {{2004}},
}