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- Kronnäs, VeronikaLund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science (author)
Dynamic modelling of weathering rates - the benefit over steady-state modelling
- Article/chapterEnglish2019
Publisher, publication year, extent ...
- 2019-01-21
- Copernicus GmbH,2019
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:su-166800
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-166800URI
- https://doi.org/10.5194/soil-5-33-2019DOI
- https://lup.lub.lu.se/record/571227e5-9b0b-4315-b3b0-3de6486924a6URI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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Notes
- Weathering rates are of considerable importance in estimating the acidification sensitivity and recovery capacity of soil and are thus important in the assessment of the sustainability of forestry in a time of changing climate and growing demands for forestry products. In this study, we modelled rates of weathering in mineral soil at two forested sites in southern Sweden included in a monitoring network, using two models. The aims were to determine whether the dynamic model ForSAFE gives comparable weathering rates to the steady-state model PROFILE and whether the ForSAFE model provided believable and useful extra information on the response of weathering to changes in acidification load, climate change and land use. The average weathering rates calculated with ForSAFE were very similar to those calculated with PROFILE for the two modelled sites. The differences between the models regarding the weathering of certain soil layers seemed to be due mainly to differences in calculated soil moisture. The weathering rates provided by ForSAFE vary seasonally with temperature and soil moisture, as well as on longer timescales, depending on environmental changes. Long-term variations due to environmental changes can be seen in the ForSAFE results, for example, the weathering of silicate minerals is suppressed under acidified conditions due to elevated aluminium concentration in the soil, whereas the weathering of apatite is accelerated by acidification. The weathering of both silicates and apatite is predicted to be enhanced by increasing temperature during the 21st century. In this part of southern Sweden, yearly precipitation is assumed to be similar to today's level during the next forest rotation, but with more precipitation in winter and spring and less in summer, which leads to somewhat drier soils in summer but still with increased weathering. In parts of Sweden with a bigger projected decrease in soil moisture, weathering might not increase despite increasing temperature. These results show that the dynamic ForSAFE model can be used for weathering rate calculations and that it gives average results comparable to those from the PROFILE model. However, dynamic modelling provides extra information on the variation in weathering rates with time and offers much better possibilities for scenario modelling.
Subject headings and genre
- LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske hsv//swe
- AGRICULTURAL SCIENCES Agriculture, Forestry and Fisheries hsv//eng
- LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske Markvetenskap hsv//swe
- AGRICULTURAL SCIENCES Agriculture, Forestry and Fisheries Soil Science hsv//eng
Added entries (persons, corporate bodies, meetings, titles ...)
- Akselsson, CeciliaLund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science(Swepub:lu)chem-cak (author)
- Belyazid, SalimStockholm University,Stockholms universitet,Institutionen för naturgeografi(Swepub:lu)chem-sbe (author)
- BECC: Biodiversity and Ecosystem services in a Changing ClimateCentrum för miljö- och klimatvetenskap (CEC) (creator_code:org_t)
Related titles
- In:Soil: Copernicus GmbH5:1, s. 33-472199-39712199-398X
Internet link
- https://doi.org/10.5194/soil-5-33-2019Fulltext
- https://soil.copernicus.org/articles/5/33/2019/soil-5-33-2019.pdf
- http://dx.doi.org/10.5194/soil-5-33-2019FULLTEXT
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-166800
- https://doi.org/10.5194/soil-5-33-2019
- https://lup.lub.lu.se/record/571227e5-9b0b-4315-b3b0-3de6486924a6
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