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Assessing the effects of seismic line disturbance on boreal peatland water balance using CoupModel.

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Title: Assessing the effects of seismic line disturbance on boreal peatland water balance using CoupModel.
Authors: Bayatvarkeshi, Maryam1 (AUTHOR) mbayatva@uwaterloo.ca, Ketcheson, Scott2 (AUTHOR), Afolabi, Oluwabamise1 (AUTHOR), Brookfield, Andrea3 (AUTHOR), Ludwig, Ralf4 (AUTHOR), Strack, Maria1 (AUTHOR)
Source: Canadian Journal of Forest Research. 4/30/2026, Vol. 56, p1-16. 16p.
Subject Terms: *Water balance (Hydrology), *Peatlands, *Soil moisture, *Soil compaction, *Evapotranspiration, *Water storage, Hydrologic models
Geographic Terms: Northern Alberta, Canada
Abstract: The slow recovery of trees in peatlands disturbed by seismic lines has spurred scholarly investigation into the underlying factors. This study aimed to quantify the impact of seismic lines on water balance components using the process-based model CoupModel. Simulated values were compared with field measurements from a seismic line located near Fort McMurray, Alberta, Canada. The simulations indicated higher soil moisture and temperature on the seismic line compared to undisturbed conditions, which aligned with the field measurements. Furthermore, the predicted shallower water table depth on the line was consistent with the field observations. The simulated actual evapotranspiration (AET) on the line was 6% higher than offline, which is less of an increase than previously documented. It was also found that understory evaporation dominated the AET from the seismic line and the adjacent natural area, and thus loss of overstory transpiration due to online canopy removal was more than balanced by higher ground layer evaporation. However, greater available water from higher effective precipitation and lateral flow outweighed the high AET on the seismic line, resulting in the seismic line having higher water storage than offline by 5 mm. Using a sensitivity analysis, we observed that a small change in soil compaction caused a substantial increase in drainage, runoff, soil moisture, and water storage. Furthermore, environmental condition (e.g., soil temperature) changed proportionally in response to seismic line creation in dense-canopy peatlands, particularly with an increase in transpiration and a decrease in soil temperature. [ABSTRACT FROM AUTHOR]
Copyright of Canadian Journal of Forest Research is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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PubTypeId: academicJournal
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  Data: Assessing the effects of seismic line disturbance on boreal peatland water balance using CoupModel.
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  Data: <searchLink fieldCode="AR" term="%22Bayatvarkeshi%2C+Maryam%22">Bayatvarkeshi, Maryam</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mbayatva@uwaterloo.ca</i><br /><searchLink fieldCode="AR" term="%22Ketcheson%2C+Scott%22">Ketcheson, Scott</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Afolabi%2C+Oluwabamise%22">Afolabi, Oluwabamise</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Brookfield%2C+Andrea%22">Brookfield, Andrea</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ludwig%2C+Ralf%22">Ludwig, Ralf</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Strack%2C+Maria%22">Strack, Maria</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Canadian+Journal+of+Forest+Research%22">Canadian Journal of Forest Research</searchLink>. 4/30/2026, Vol. 56, p1-16. 16p.
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  Data: *<searchLink fieldCode="DE" term="%22Water+balance+%28Hydrology%29%22">Water balance (Hydrology)</searchLink><br />*<searchLink fieldCode="DE" term="%22Peatlands%22">Peatlands</searchLink><br />*<searchLink fieldCode="DE" term="%22Soil+moisture%22">Soil moisture</searchLink><br />*<searchLink fieldCode="DE" term="%22Soil+compaction%22">Soil compaction</searchLink><br />*<searchLink fieldCode="DE" term="%22Evapotranspiration%22">Evapotranspiration</searchLink><br />*<searchLink fieldCode="DE" term="%22Water+storage%22">Water storage</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrologic+models%22">Hydrologic models</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Northern+Alberta%22">Northern Alberta</searchLink><br /><searchLink fieldCode="DE" term="%22Canada%22">Canada</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The slow recovery of trees in peatlands disturbed by seismic lines has spurred scholarly investigation into the underlying factors. This study aimed to quantify the impact of seismic lines on water balance components using the process-based model CoupModel. Simulated values were compared with field measurements from a seismic line located near Fort McMurray, Alberta, Canada. The simulations indicated higher soil moisture and temperature on the seismic line compared to undisturbed conditions, which aligned with the field measurements. Furthermore, the predicted shallower water table depth on the line was consistent with the field observations. The simulated actual evapotranspiration (AET) on the line was 6% higher than offline, which is less of an increase than previously documented. It was also found that understory evaporation dominated the AET from the seismic line and the adjacent natural area, and thus loss of overstory transpiration due to online canopy removal was more than balanced by higher ground layer evaporation. However, greater available water from higher effective precipitation and lateral flow outweighed the high AET on the seismic line, resulting in the seismic line having higher water storage than offline by 5 mm. Using a sensitivity analysis, we observed that a small change in soil compaction caused a substantial increase in drainage, runoff, soil moisture, and water storage. Furthermore, environmental condition (e.g., soil temperature) changed proportionally in response to seismic line creation in dense-canopy peatlands, particularly with an increase in transpiration and a decrease in soil temperature. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Canadian Journal of Forest Research is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1139/cjfr-2025-0264
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 1
    Subjects:
      – SubjectFull: Water balance (Hydrology)
        Type: general
      – SubjectFull: Peatlands
        Type: general
      – SubjectFull: Soil moisture
        Type: general
      – SubjectFull: Soil compaction
        Type: general
      – SubjectFull: Evapotranspiration
        Type: general
      – SubjectFull: Water storage
        Type: general
      – SubjectFull: Hydrologic models
        Type: general
      – SubjectFull: Northern Alberta
        Type: general
      – SubjectFull: Canada
        Type: general
    Titles:
      – TitleFull: Assessing the effects of seismic line disturbance on boreal peatland water balance using CoupModel.
        Type: main
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          Name:
            NameFull: Bayatvarkeshi, Maryam
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            NameFull: Ketcheson, Scott
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            NameFull: Afolabi, Oluwabamise
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            NameFull: Brookfield, Andrea
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            NameFull: Ludwig, Ralf
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            NameFull: Strack, Maria
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            – D: 30
              M: 04
              Text: 4/30/2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 00455067
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              Value: 56
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            – TitleFull: Canadian Journal of Forest Research
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