Advanced

Scaling and Mapping Regional Calculations of Soil Chemical Weathering Rates in Sweden

Akselsson, Cecilia LU ; Holmqvist, Johan LU ; Alveteg, Mattias LU ; Kurz, Daniel and Sverdrup, Harald LU (2004) In Water, Air, & Soil Pollution: Focus 4(2-3). p.671-681
Abstract
Weathering rates of base cations are crucial in critical load calculations and assessments of sustainable forestry. The weathering rate on a single site with detailed geological data can be modelled using the PROFILE model. For environmental assessments on a regional scale, the weathering rates for sites are scaled into regional maps. The step from sites to regional level requires focus on the spatial variation of weathering rates. In this paper, a method is presented by which weathering rates are calculated for 25589 Swedish sites with total elemental analysis for the soil. Based on a part of the results, a methodology for creating area covering maps by geostatistical analysis and kriging is described. A normative reconstruction model was... (More)
Weathering rates of base cations are crucial in critical load calculations and assessments of sustainable forestry. The weathering rate on a single site with detailed geological data can be modelled using the PROFILE model. For environmental assessments on a regional scale, the weathering rates for sites are scaled into regional maps. The step from sites to regional level requires focus on the spatial variation of weathering rates. In this paper, a method is presented by which weathering rates are calculated for 25589 Swedish sites with total elemental analysis for the soil. Based on a part of the results, a methodology for creating area covering maps by geostatistical analysis and kriging is described. A normative reconstruction model was used to transform total elemental analysis to mineralogy. Information from the Swedish Forest Inventory database and other databases were used to derive texture and other important information for the sites, e.g. climate, deposition and vegetation data. The calculated weathering rates show a regional pattern that indicates possibilities for interpolation of data in large parts of Sweden. Geostatistical analysis of an area in southern Sweden shows different properties for different base cations. Kriging was performed for potassium to demonstrate the method. It was concluded that different base cations and different regions have to be analysed separately, in order to optimise the kriging method. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Water, Air, & Soil Pollution: Focus
volume
4
issue
2-3
pages
671 - 681
publisher
Springer
external identifiers
  • scopus:4344616595
ISSN
1573-2940
DOI
10.1023/B:WAFO.0000028386.89557.fa
language
English
LU publication?
yes
id
2b2e9c7a-3378-4b26-bffa-2d340841f6ab (old id 141690)
date added to LUP
2007-06-25 09:37:28
date last changed
2017-01-01 07:24:22
@article{2b2e9c7a-3378-4b26-bffa-2d340841f6ab,
  abstract     = {Weathering rates of base cations are crucial in critical load calculations and assessments of sustainable forestry. The weathering rate on a single site with detailed geological data can be modelled using the PROFILE model. For environmental assessments on a regional scale, the weathering rates for sites are scaled into regional maps. The step from sites to regional level requires focus on the spatial variation of weathering rates. In this paper, a method is presented by which weathering rates are calculated for 25589 Swedish sites with total elemental analysis for the soil. Based on a part of the results, a methodology for creating area covering maps by geostatistical analysis and kriging is described. A normative reconstruction model was used to transform total elemental analysis to mineralogy. Information from the Swedish Forest Inventory database and other databases were used to derive texture and other important information for the sites, e.g. climate, deposition and vegetation data. The calculated weathering rates show a regional pattern that indicates possibilities for interpolation of data in large parts of Sweden. Geostatistical analysis of an area in southern Sweden shows different properties for different base cations. Kriging was performed for potassium to demonstrate the method. It was concluded that different base cations and different regions have to be analysed separately, in order to optimise the kriging method.},
  author       = {Akselsson, Cecilia and Holmqvist, Johan and Alveteg, Mattias and Kurz, Daniel and Sverdrup, Harald},
  issn         = {1573-2940},
  language     = {eng},
  number       = {2-3},
  pages        = {671--681},
  publisher    = {Springer},
  series       = {Water, Air, & Soil Pollution: Focus},
  title        = {Scaling and Mapping Regional Calculations of Soil Chemical Weathering Rates in Sweden},
  url          = {http://dx.doi.org/10.1023/B:WAFO.0000028386.89557.fa},
  volume       = {4},
  year         = {2004},
}