Hydrological aspects of the carbon balance in a boreal catchment: A model study
AbstractThe cycling of carbon in its gaseous, solid and dissolved forms is of central importance to ecosystem science, particularly, when the natural carbon cycle has been perturbed by human activity. Mathematical models are commonly used to asses and predict global and regional patterns of terrestr...
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Department of Physical Geography and Ecosystem Science, Lund University
2007
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ftulundlup:oai:lup.lub.lu.se:39379fa7-460a-491a-98ff-8a56d1a21b78 2023-05-15T17:45:04+02:00 Hydrological aspects of the carbon balance in a boreal catchment: A model study Yurova, Alla 2007 https://lup.lub.lu.se/record/599043 eng eng Department of Physical Geography and Ecosystem Science, Lund University https://lup.lub.lu.se/record/599043 urn:isbn:978-91-85793-03-7 scopus:35348869451 Meddelanden från Lunds universitets geografiska institution. Avhandlingar; (2007) ISSN: 0346-6787 Physical Geography cartography pedology geomorphology boreal peatland dissolved organic carbon ecohydrology model climatology Fysisk geografi geomorfologi marklära kartografi klimatologi thesis/doccomp info:eu-repo/semantics/doctoralThesis text 2007 ftulundlup 2023-02-01T23:28:21Z AbstractThe cycling of carbon in its gaseous, solid and dissolved forms is of central importance to ecosystem science, particularly, when the natural carbon cycle has been perturbed by human activity. Mathematical models are commonly used to asses and predict global and regional patterns of terrestrial carbon exchange. At the same time, processes operating on smaller (sub-grid) scales are usually outside the scope of the large-scale models exploring climate?biosphere interactions. However, if a sub-grid feature is found repeatedly in a large number of particular realizations, we may expect that its characteristic dynamics are likely to be important even at larger scales. This work examines some of these phenomena. First, a boreal landscape differentiated into forests and peatlands is investigated. Second, the export of dissolved organic carbon (DOC) in peatland streams is assessed.The work described herein mainly addresses methodology, i.e. how approaches to hydrology and ecosystem modelling can be combined. Specifically, the general ecosystem model GUESS was modified and supplied with new modules to be used for peatland simulations. The model was also designed to reproduce soil moisture and related ecosystem properties along a topographical catena. In addition, a completely new model of DOC production, transport and transformation in peat was developed. The data for model development and validation came from boreal catchments in the Vindelns Forest Research Parks, The Swedish University of Agricultural Sciences, Northern Sweden. A relatively good fit between the modelled and measured NEE at the Degerö Stormyr peatland was demonstrated for 2001-2003. Further, the model was used to demonstrate that the NEE was quite insensitive to changes in water table level within the ranges typical for the dominant mire plant community. The newly constructed model was able to reproduce DOC concentrations measured at the outlet of the Kallkälsmyren peatland for 1993-2001. The model suggested that the main drivers for ... Doctoral or Postdoctoral Thesis Northern Sweden Lund University Publications (LUP) |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Physical Geography cartography pedology geomorphology boreal peatland dissolved organic carbon ecohydrology model climatology Fysisk geografi geomorfologi marklära kartografi klimatologi |
spellingShingle |
Physical Geography cartography pedology geomorphology boreal peatland dissolved organic carbon ecohydrology model climatology Fysisk geografi geomorfologi marklära kartografi klimatologi Yurova, Alla Hydrological aspects of the carbon balance in a boreal catchment: A model study |
topic_facet |
Physical Geography cartography pedology geomorphology boreal peatland dissolved organic carbon ecohydrology model climatology Fysisk geografi geomorfologi marklära kartografi klimatologi |
description |
AbstractThe cycling of carbon in its gaseous, solid and dissolved forms is of central importance to ecosystem science, particularly, when the natural carbon cycle has been perturbed by human activity. Mathematical models are commonly used to asses and predict global and regional patterns of terrestrial carbon exchange. At the same time, processes operating on smaller (sub-grid) scales are usually outside the scope of the large-scale models exploring climate?biosphere interactions. However, if a sub-grid feature is found repeatedly in a large number of particular realizations, we may expect that its characteristic dynamics are likely to be important even at larger scales. This work examines some of these phenomena. First, a boreal landscape differentiated into forests and peatlands is investigated. Second, the export of dissolved organic carbon (DOC) in peatland streams is assessed.The work described herein mainly addresses methodology, i.e. how approaches to hydrology and ecosystem modelling can be combined. Specifically, the general ecosystem model GUESS was modified and supplied with new modules to be used for peatland simulations. The model was also designed to reproduce soil moisture and related ecosystem properties along a topographical catena. In addition, a completely new model of DOC production, transport and transformation in peat was developed. The data for model development and validation came from boreal catchments in the Vindelns Forest Research Parks, The Swedish University of Agricultural Sciences, Northern Sweden. A relatively good fit between the modelled and measured NEE at the Degerö Stormyr peatland was demonstrated for 2001-2003. Further, the model was used to demonstrate that the NEE was quite insensitive to changes in water table level within the ranges typical for the dominant mire plant community. The newly constructed model was able to reproduce DOC concentrations measured at the outlet of the Kallkälsmyren peatland for 1993-2001. The model suggested that the main drivers for ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Yurova, Alla |
author_facet |
Yurova, Alla |
author_sort |
Yurova, Alla |
title |
Hydrological aspects of the carbon balance in a boreal catchment: A model study |
title_short |
Hydrological aspects of the carbon balance in a boreal catchment: A model study |
title_full |
Hydrological aspects of the carbon balance in a boreal catchment: A model study |
title_fullStr |
Hydrological aspects of the carbon balance in a boreal catchment: A model study |
title_full_unstemmed |
Hydrological aspects of the carbon balance in a boreal catchment: A model study |
title_sort |
hydrological aspects of the carbon balance in a boreal catchment: a model study |
publisher |
Department of Physical Geography and Ecosystem Science, Lund University |
publishDate |
2007 |
url |
https://lup.lub.lu.se/record/599043 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Meddelanden från Lunds universitets geografiska institution. Avhandlingar; (2007) ISSN: 0346-6787 |
op_relation |
https://lup.lub.lu.se/record/599043 urn:isbn:978-91-85793-03-7 scopus:35348869451 |
_version_ |
1766147807368970240 |