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Modelling geochemistry and Lake pH since glaciation at Lake Gårdsjön

Warfvinge, Per LU ; Sverdrup, Harald LU ; Alveteg, Mattias LU and Rietz, Fredrik (1995) In Water, Air and Soil Pollution 85(2). p.713-718
Abstract
The soil acidification model SAFE was modified to calculate historical changes in geochemistry and runoff since the last glaciation ended at the Lake Gårdsjön F1 catchment 12 000 B.P. Changes in runoff pH and ANC, soil weathering rate, soil mineralogy, soil texture and base saturation was also calculated. The changes in mineralogy compared favorable to data. Modeled historic weathering rates were slightly higher than data suggest, while present weathering rate was somewhat to low, 37 mmolc m–2 yr–1. The weathering rate was very high immediately after the last glaciation, and decreased as the smaller particles were consumed by weathering. The calculated runoff pH follows the pattern of the paleo-inferred pH. SAFE suggests a natural... (More)
The soil acidification model SAFE was modified to calculate historical changes in geochemistry and runoff since the last glaciation ended at the Lake Gårdsjön F1 catchment 12 000 B.P. Changes in runoff pH and ANC, soil weathering rate, soil mineralogy, soil texture and base saturation was also calculated. The changes in mineralogy compared favorable to data. Modeled historic weathering rates were slightly higher than data suggest, while present weathering rate was somewhat to low, 37 mmolc m–2 yr–1. The weathering rate was very high immediately after the last glaciation, and decreased as the smaller particles were consumed by weathering. The calculated runoff pH follows the pattern of the paleo-inferred pH. SAFE suggests a natural depletion of base cations in the C-layer. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Weathering - mineral - soil - acidification - geochemistry - surface water
in
Water, Air and Soil Pollution
volume
85
issue
2
pages
713 - 718
publisher
Springer
external identifiers
  • scopus:0029414874
ISSN
1573-2932
DOI
10.1007/BF00476913
language
English
LU publication?
yes
id
15016bc9-a5e5-4007-abc2-f4748e2cf218 (old id 1275450)
date added to LUP
2009-01-30 10:51:31
date last changed
2017-01-01 04:51:46
@article{15016bc9-a5e5-4007-abc2-f4748e2cf218,
  abstract     = {The soil acidification model SAFE was modified to calculate historical changes in geochemistry and runoff since the last glaciation ended at the Lake Gårdsjön F1 catchment 12 000 B.P. Changes in runoff pH and ANC, soil weathering rate, soil mineralogy, soil texture and base saturation was also calculated. The changes in mineralogy compared favorable to data. Modeled historic weathering rates were slightly higher than data suggest, while present weathering rate was somewhat to low, 37 mmolc m–2 yr–1. The weathering rate was very high immediately after the last glaciation, and decreased as the smaller particles were consumed by weathering. The calculated runoff pH follows the pattern of the paleo-inferred pH. SAFE suggests a natural depletion of base cations in the C-layer.},
  author       = {Warfvinge, Per and Sverdrup, Harald and Alveteg, Mattias and Rietz, Fredrik},
  issn         = {1573-2932},
  keyword      = {Weathering - mineral - soil - acidification - geochemistry - surface water},
  language     = {eng},
  number       = {2},
  pages        = {713--718},
  publisher    = {Springer},
  series       = {Water, Air and Soil Pollution},
  title        = {Modelling geochemistry and Lake pH since glaciation at Lake Gårdsjön},
  url          = {http://dx.doi.org/10.1007/BF00476913},
  volume       = {85},
  year         = {1995},
}