Rewetting impact on the hydrological function of a drained peatland in the boreal landscape
There is a growing interest in peatland restoration as a nature-based solution to mitigate hydrological extremes. To counter the impacts of past peatland degradation and ongoing climate change trajectories, governmental authorities propose rewetting of drained peatlands as a key tool to enhance land...
Main Authors: | , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
ELSEVIER
2024
|
Subjects: | |
Online Access: | https://pub.epsilon.slu.se/34989/ https://pub.epsilon.slu.se/34989/1/karimi-s-et-al-20240905.pdf |
id |
ftslunivuppsala:oai:pub.epsilon.slu.se:34989 |
---|---|
record_format |
openpolar |
spelling |
ftslunivuppsala:oai:pub.epsilon.slu.se:34989 2024-09-30T14:40:20+00:00 Rewetting impact on the hydrological function of a drained peatland in the boreal landscape Karimi, Shirin Maher Hasselquist, Eliza Salimi, Shokoufeh Järveoja, Järvi Laudon, Hjalmar 2024 application/pdf https://pub.epsilon.slu.se/34989/ https://pub.epsilon.slu.se/34989/1/karimi-s-et-al-20240905.pdf en eng eng ELSEVIER https://pub.epsilon.slu.se/34989/1/karimi-s-et-al-20240905.pdf Karimi, Shirin and Maher Hasselquist, Eliza and Salimi, Shokoufeh and Järveoja, Järvi and Laudon, Hjalmar (2024). Rewetting impact on the hydrological function of a drained peatland in the boreal landscape. Journal of Hydrology. 641 , 131729 [Research article] Oceanography Hydrology Water Resources Geosciences Multidisciplinary Research article NonPeerReviewed info:eu-repo/semantics/article 2024 ftslunivuppsala 2024-09-11T00:01:40Z There is a growing interest in peatland restoration as a nature-based solution to mitigate hydrological extremes. To counter the impacts of past peatland degradation and ongoing climate change trajectories, governmental authorities propose rewetting of drained peatlands as a key tool to enhance landscape resilience against floods and droughts by improving water storage. Despite a growing body of literature on this topic, the effectiveness of rewetting to enhance peatland hydrological functions remains insufficiently documented, especially in the boreal region. Therefore, this study utilized high temporal resolution groundwater table level and streamflow data to investigate the impact of peatland rewetting using a before-after-control-impact (BACI) approach. This investigation was conducted on a historically drained peatland located at the Trollberget Experimental Area (TEA) in northern Sweden. The primary aim of the experimental study was to examine the impact of rewetting on (1) the groundwater table level response, (2) runoff dynamics, and (3) water storage and hydrological buffer capacity. Our results showed that peatland rewetting led to a significant increase in the groundwater table level by 60 mm compared to the control. Flow duration curve (FDC) analysis demonstrated that the low-flow threshold increased by up to 150% at the rewetted sites. Furthermore, our findings suggested that rewetting resulted in an increase in the groundwater table level threshold at which stream runoff is generated. Additionally, our findings showed a noteworthy shift in the monthly runoff coefficient, with an increase during dry months and a decrease during wet periods. Combined, these observations point towards an enhancement in the peatland's water storage and hydrological buffer capacity as a positive outcome of the rewetting efforts, but also highlight that within the first three years, full hydrological restoration did not occur. Article in Journal/Newspaper Northern Sweden Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
institution |
Open Polar |
collection |
Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
op_collection_id |
ftslunivuppsala |
language |
English |
topic |
Oceanography Hydrology Water Resources Geosciences Multidisciplinary |
spellingShingle |
Oceanography Hydrology Water Resources Geosciences Multidisciplinary Karimi, Shirin Maher Hasselquist, Eliza Salimi, Shokoufeh Järveoja, Järvi Laudon, Hjalmar Rewetting impact on the hydrological function of a drained peatland in the boreal landscape |
topic_facet |
Oceanography Hydrology Water Resources Geosciences Multidisciplinary |
description |
There is a growing interest in peatland restoration as a nature-based solution to mitigate hydrological extremes. To counter the impacts of past peatland degradation and ongoing climate change trajectories, governmental authorities propose rewetting of drained peatlands as a key tool to enhance landscape resilience against floods and droughts by improving water storage. Despite a growing body of literature on this topic, the effectiveness of rewetting to enhance peatland hydrological functions remains insufficiently documented, especially in the boreal region. Therefore, this study utilized high temporal resolution groundwater table level and streamflow data to investigate the impact of peatland rewetting using a before-after-control-impact (BACI) approach. This investigation was conducted on a historically drained peatland located at the Trollberget Experimental Area (TEA) in northern Sweden. The primary aim of the experimental study was to examine the impact of rewetting on (1) the groundwater table level response, (2) runoff dynamics, and (3) water storage and hydrological buffer capacity. Our results showed that peatland rewetting led to a significant increase in the groundwater table level by 60 mm compared to the control. Flow duration curve (FDC) analysis demonstrated that the low-flow threshold increased by up to 150% at the rewetted sites. Furthermore, our findings suggested that rewetting resulted in an increase in the groundwater table level threshold at which stream runoff is generated. Additionally, our findings showed a noteworthy shift in the monthly runoff coefficient, with an increase during dry months and a decrease during wet periods. Combined, these observations point towards an enhancement in the peatland's water storage and hydrological buffer capacity as a positive outcome of the rewetting efforts, but also highlight that within the first three years, full hydrological restoration did not occur. |
format |
Article in Journal/Newspaper |
author |
Karimi, Shirin Maher Hasselquist, Eliza Salimi, Shokoufeh Järveoja, Järvi Laudon, Hjalmar |
author_facet |
Karimi, Shirin Maher Hasselquist, Eliza Salimi, Shokoufeh Järveoja, Järvi Laudon, Hjalmar |
author_sort |
Karimi, Shirin |
title |
Rewetting impact on the hydrological function of a drained peatland in the boreal landscape |
title_short |
Rewetting impact on the hydrological function of a drained peatland in the boreal landscape |
title_full |
Rewetting impact on the hydrological function of a drained peatland in the boreal landscape |
title_fullStr |
Rewetting impact on the hydrological function of a drained peatland in the boreal landscape |
title_full_unstemmed |
Rewetting impact on the hydrological function of a drained peatland in the boreal landscape |
title_sort |
rewetting impact on the hydrological function of a drained peatland in the boreal landscape |
publisher |
ELSEVIER |
publishDate |
2024 |
url |
https://pub.epsilon.slu.se/34989/ https://pub.epsilon.slu.se/34989/1/karimi-s-et-al-20240905.pdf |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_relation |
https://pub.epsilon.slu.se/34989/1/karimi-s-et-al-20240905.pdf Karimi, Shirin and Maher Hasselquist, Eliza and Salimi, Shokoufeh and Järveoja, Järvi and Laudon, Hjalmar (2024). Rewetting impact on the hydrological function of a drained peatland in the boreal landscape. Journal of Hydrology. 641 , 131729 [Research article] |
_version_ |
1811642825760047104 |