A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes
Northern peatlands provide a globally important carbon (C) store. Since the beginning of the 20th century, however, large areas of natural peatlands have been drained for biomass production across Fennoscandia. Today, drained peatland forests constitute a common feature of the managed boreal landsca...
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ftslunivuppsala:oai:pub.epsilon.slu.se:33197 2024-05-19T07:40:10+00:00 A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes Tong, Cheuk Hei Marcus Noumonvi, Koffi Dodji Ratcliffe, Joshua Ratcliffe, Joshua L. Laudon, Hjalmar Järveoja, Järvi Drott, Andreas Nilsson, Mats Peichl, Matthias 2024 application/pdf https://pub.epsilon.slu.se/33197/ https://pub.epsilon.slu.se/33197/1/tong-c-h-m-et-al-20240423.pdf sv eng swe eng https://pub.epsilon.slu.se/33197/1/tong-c-h-m-et-al-20240423.pdf Tong, Cheuk Hei Marcus and Noumonvi, Koffi Dodji and Ratcliffe, Joshua and Ratcliffe, Joshua L. and Laudon, Hjalmar and Järveoja, Järvi and Drott, Andreas and Nilsson, Mats and Peichl, Matthias (2024). A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes. Global Change Biology. 30 :13 , e17246 [Research article] Climate Research Forest Science Research article NonPeerReviewed 2024 ftslunivuppsala 2024-04-23T23:38:22Z Northern peatlands provide a globally important carbon (C) store. Since the beginning of the 20th century, however, large areas of natural peatlands have been drained for biomass production across Fennoscandia. Today, drained peatland forests constitute a common feature of the managed boreal landscape, yet their ecosystem C balance and associated climate impact are not well understood, particularly within the nutrient-poor boreal region. In this study, we estimated the net ecosystem carbon balance (NECB) from a nutrient-poor drained peatland forest and an adjacent natural mire in northern Sweden by integrating terrestrial carbon dioxide (CO2) and methane (CH4) fluxes with aquatic losses of dissolved organic C (DOC) and inorganic C based on eddy covariance and stream discharge measurements, respectively, over two hydrological years. Since the forest included a dense spruce-birch area and a sparse pine area, we were able to further evaluate the effect of contrasting forest structure on the NECB and component fluxes. We found that the drained peatland forest was a net C sink with a 2-year mean NECB of −115 ± 5 g C m−2 year−1 while the adjacent mire was close to C neutral with 14.6 ± 1.7 g C m−2 year−1. The NECB of the drained peatland forest was dominated by the net CO2 exchange (net ecosystem exchange [NEE]), whereas NEE and DOC export fluxes contributed equally to the mire NECB. We further found that the C sink strength in the sparse pine forest area (−153 ± 8 g C m−2 year−1) was about 1.5 times as high as in the dense spruce-birch forest area (−95 ± 8 g C m−2 year−1) due to enhanced C uptake by ground vegetation and lower DOC export. Our study suggests that historically drained peatland forests in nutrient-poor boreal regions may provide a significant net ecosystem C sink and associated climate benefits. Article in Journal/Newspaper Fennoscandia 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 |
Swedish English |
topic |
Climate Research Forest Science |
spellingShingle |
Climate Research Forest Science Tong, Cheuk Hei Marcus Noumonvi, Koffi Dodji Ratcliffe, Joshua Ratcliffe, Joshua L. Laudon, Hjalmar Järveoja, Järvi Drott, Andreas Nilsson, Mats Peichl, Matthias A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes |
topic_facet |
Climate Research Forest Science |
description |
Northern peatlands provide a globally important carbon (C) store. Since the beginning of the 20th century, however, large areas of natural peatlands have been drained for biomass production across Fennoscandia. Today, drained peatland forests constitute a common feature of the managed boreal landscape, yet their ecosystem C balance and associated climate impact are not well understood, particularly within the nutrient-poor boreal region. In this study, we estimated the net ecosystem carbon balance (NECB) from a nutrient-poor drained peatland forest and an adjacent natural mire in northern Sweden by integrating terrestrial carbon dioxide (CO2) and methane (CH4) fluxes with aquatic losses of dissolved organic C (DOC) and inorganic C based on eddy covariance and stream discharge measurements, respectively, over two hydrological years. Since the forest included a dense spruce-birch area and a sparse pine area, we were able to further evaluate the effect of contrasting forest structure on the NECB and component fluxes. We found that the drained peatland forest was a net C sink with a 2-year mean NECB of −115 ± 5 g C m−2 year−1 while the adjacent mire was close to C neutral with 14.6 ± 1.7 g C m−2 year−1. The NECB of the drained peatland forest was dominated by the net CO2 exchange (net ecosystem exchange [NEE]), whereas NEE and DOC export fluxes contributed equally to the mire NECB. We further found that the C sink strength in the sparse pine forest area (−153 ± 8 g C m−2 year−1) was about 1.5 times as high as in the dense spruce-birch forest area (−95 ± 8 g C m−2 year−1) due to enhanced C uptake by ground vegetation and lower DOC export. Our study suggests that historically drained peatland forests in nutrient-poor boreal regions may provide a significant net ecosystem C sink and associated climate benefits. |
format |
Article in Journal/Newspaper |
author |
Tong, Cheuk Hei Marcus Noumonvi, Koffi Dodji Ratcliffe, Joshua Ratcliffe, Joshua L. Laudon, Hjalmar Järveoja, Järvi Drott, Andreas Nilsson, Mats Peichl, Matthias |
author_facet |
Tong, Cheuk Hei Marcus Noumonvi, Koffi Dodji Ratcliffe, Joshua Ratcliffe, Joshua L. Laudon, Hjalmar Järveoja, Järvi Drott, Andreas Nilsson, Mats Peichl, Matthias |
author_sort |
Tong, Cheuk Hei Marcus |
title |
A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes |
title_short |
A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes |
title_full |
A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes |
title_fullStr |
A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes |
title_full_unstemmed |
A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes |
title_sort |
drained nutrient-poor peatland forest in boreal sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes |
publishDate |
2024 |
url |
https://pub.epsilon.slu.se/33197/ https://pub.epsilon.slu.se/33197/1/tong-c-h-m-et-al-20240423.pdf |
genre |
Fennoscandia Northern Sweden |
genre_facet |
Fennoscandia Northern Sweden |
op_relation |
https://pub.epsilon.slu.se/33197/1/tong-c-h-m-et-al-20240423.pdf Tong, Cheuk Hei Marcus and Noumonvi, Koffi Dodji and Ratcliffe, Joshua and Ratcliffe, Joshua L. and Laudon, Hjalmar and Järveoja, Järvi and Drott, Andreas and Nilsson, Mats and Peichl, Matthias (2024). A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes. Global Change Biology. 30 :13 , e17246 [Research article] |
_version_ |
1799479735488610304 |