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Downstream Temperature Effects of Boreal Forest Clearcutting Vary With Riparian Buffer Width.

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Title: Downstream Temperature Effects of Boreal Forest Clearcutting Vary With Riparian Buffer Width.
Authors: Myrstener, M.1,2 (AUTHOR) maria.myrstener@slu.se, Greiser, C.3 (AUTHOR) caroline.greiser@su.se, Kuglerová, L.1 (AUTHOR)
Source: Water Resources Research. Mar2025, Vol. 61 Issue 3, p1-14. 14p.
Subjects: Clearcutting, Water temperature, Taigas, Temperature effect, Autumn, Buffer zones (Ecosystem management)
Abstract: Clearcutting increases temperatures of forest streams, and, in temperate zones, the effects can extend far downstream of the clearcut itself. Here, we studied whether similar patterns are found in colder, boreal zones, and if riparian buffers can prevent stream water from heating up. We recorded temperature at 45 locations across nine streams with varying buffer widths. In these streams, we compared upstream (control) reaches with reaches at clearcuts and up to 150 m immediately downstream of the clearcut. In summer, we found daily maximum water temperature increases at clearcuts up to 4.1°C, with the warmest week ranging from 12.0°C to 18.6°C. We further found that warming was sustained 150 m downstream of clearcuts in three out of six streams with buffers <10 m. Surprisingly, temperature patterns in autumn resembled those in summer, yet, with lower absolute temperatures (maximum warming was 1.9°C in autumn). Clearcuts in boreal forests can indeed warm streams, and, because these temperature effects are propagated downstream, we risk catchment‐scale effects and cumulative warming when streams pass through several clearcuts. In this study, riparian buffers wider than 15 m protected against water temperature increases; hence, we call for a general increase of riparian buffer width along small streams in boreal forests. Key Points: Clearcutting of boreal forests can warm streams, and these temperature effects can be propagated at least 150 m downstreamTemperature effects are not only isolated to summer, but instead patterns can also sustain into autumn and resemble those in summerRiparian buffers wider than 15 m protected against water temperature increases [ABSTRACT FROM AUTHOR]
Copyright of Water Resources Research is the property of Wiley-Blackwell 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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  Data: Downstream Temperature Effects of Boreal Forest Clearcutting Vary With Riparian Buffer Width.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Myrstener%2C+M%2E%22&quot;&gt;Myrstener, M.&lt;/searchLink&gt;&lt;relatesTo&gt;1,2&lt;/relatesTo&gt; (AUTHOR)&lt;i&gt; maria.myrstener@slu.se&lt;/i&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Greiser%2C+C%2E%22&quot;&gt;Greiser, C.&lt;/searchLink&gt;&lt;relatesTo&gt;3&lt;/relatesTo&gt; (AUTHOR)&lt;i&gt; caroline.greiser@su.se&lt;/i&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kuglerov&#225;%2C+L%2E%22&quot;&gt;Kuglerov&#225;, L.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Water+Resources+Research%22&quot;&gt;Water Resources Research&lt;/searchLink&gt;. Mar2025, Vol. 61 Issue 3, p1-14. 14p.
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Clearcutting%22&quot;&gt;Clearcutting&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Water+temperature%22&quot;&gt;Water temperature&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Taigas%22&quot;&gt;Taigas&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Temperature+effect%22&quot;&gt;Temperature effect&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Autumn%22&quot;&gt;Autumn&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Buffer+zones+%28Ecosystem+management%29%22&quot;&gt;Buffer zones (Ecosystem management)&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Clearcutting increases temperatures of forest streams, and, in temperate zones, the effects can extend far downstream of the clearcut itself. Here, we studied whether similar patterns are found in colder, boreal zones, and if riparian buffers can prevent stream water from heating up. We recorded temperature at 45 locations across nine streams with varying buffer widths. In these streams, we compared upstream (control) reaches with reaches at clearcuts and up to 150 m immediately downstream of the clearcut. In summer, we found daily maximum water temperature increases at clearcuts up to 4.1&#176;C, with the warmest week ranging from 12.0&#176;C to 18.6&#176;C. We further found that warming was sustained 150 m downstream of clearcuts in three out of six streams with buffers &lt;10 m. Surprisingly, temperature patterns in autumn resembled those in summer, yet, with lower absolute temperatures (maximum warming was 1.9&#176;C in autumn). Clearcuts in boreal forests can indeed warm streams, and, because these temperature effects are propagated downstream, we risk catchment‐scale effects and cumulative warming when streams pass through several clearcuts. In this study, riparian buffers wider than 15 m protected against water temperature increases; hence, we call for a general increase of riparian buffer width along small streams in boreal forests. Key Points: Clearcutting of boreal forests can warm streams, and these temperature effects can be propagated at least 150 m downstreamTemperature effects are not only isolated to summer, but instead patterns can also sustain into autumn and resemble those in summerRiparian buffers wider than 15 m protected against water temperature increases [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: &lt;i&gt;Copyright of Water Resources Research is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder&#39;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.&lt;/i&gt; (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1029/2024WR037705
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 14
        StartPage: 1
    Subjects:
      – SubjectFull: Clearcutting
        Type: general
      – SubjectFull: Water temperature
        Type: general
      – SubjectFull: Taigas
        Type: general
      – SubjectFull: Temperature effect
        Type: general
      – SubjectFull: Autumn
        Type: general
      – SubjectFull: Buffer zones (Ecosystem management)
        Type: general
    Titles:
      – TitleFull: Downstream Temperature Effects of Boreal Forest Clearcutting Vary With Riparian Buffer Width.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Myrstener, M.
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            NameFull: Greiser, C.
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            NameFull: Kuglerová, L.
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          Dates:
            – D: 01
              M: 03
              Text: Mar2025
              Type: published
              Y: 2025
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              Value: 00431397
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              Value: 61
            – Type: issue
              Value: 3
          Titles:
            – TitleFull: Water Resources Research
              Type: main
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