Drought response of the boreal forest carbon sink is driven by understorey–tree composition
The boreal forest is an important global carbon sink, but its response to drought remains uncertain. Here, we compiled biometric- and chamber-based flux data from 50 boreal forest stands to assess the impact of the 2018 European summer drought on net ecosystem production (NEP) across a 68 km2 manage...
Published in: | Nature Geoscience |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer Nature
|
Subjects: | |
Online Access: | https://jukuri.luke.fi/handle/10024/554685 https://doi.org/10.1038/s41561-024-01374-9 |
id |
ftluke:oai:jukuri.luke.fi:10024/554685 |
---|---|
record_format |
openpolar |
spelling |
ftluke:oai:jukuri.luke.fi:10024/554685 2024-09-15T18:26:09+00:00 Drought response of the boreal forest carbon sink is driven by understorey–tree composition Martínez-García, Eduardo Nilsson, Mats B. Laudon, Hjalmar Lundmark, Tomas Fransson, Johan E. S. Wallerman, Jörgen Peichl, Matthias orcid:0000-0003-2176-9671 4100311110 Luonnonvarakeskus 197-204 true https://jukuri.luke.fi/handle/10024/554685 https://doi.org/10.1038/s41561-024-01374-9 en eng Springer Nature Nature geoscience 10.1038/s41561-024-01374-9 1752-0894 1752-0908 17 How to cite: Martínez-García, E., Nilsson, M.B., Laudon, H. et al. Drought response of the boreal forest carbon sink is driven by understorey–tree composition. Nat. Geosci. 17, 197–204 (2024). https://doi.org/10.1038/s41561-024-01374-9 https://jukuri.luke.fi/handle/10024/554685 URN:NBN:fi-fe2024072662731 http://dx.doi.org/10.1038/s41561-024-01374-9 CC BY 4.0 publication fi=A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä|sv=A1 Originalartikel i en vetenskaplig tidskrift|en=A1 Journal article (refereed), original research| fi=Publisher's version|sv=Publisher's version|en=Publisher's version| ftluke https://doi.org/10.1038/s41561-024-01374-9 2024-07-29T23:38:59Z The boreal forest is an important global carbon sink, but its response to drought remains uncertain. Here, we compiled biometric- and chamber-based flux data from 50 boreal forest stands to assess the impact of the 2018 European summer drought on net ecosystem production (NEP) across a 68 km2 managed landscape in northern Sweden. Our results reveal a non-uniform reduction in NEP (on average by 80 ± 16 g C m−2 yr−1 or 57 ± 13%) across the landscape, which was greatest in young stands of 20–50 years (95 ± 39 g C m−2 yr−1), but gradually decreased towards older stands (54 ± 57 g C m−2 yr−1). This pattern was attributed to the higher sensitivity of forest-floor understorey to drought and its decreasing contribution to production relative to trees during stand development. This suggests that an age-dependent shift in understorey–tree composition with increasing stand age drives the drought response of the boreal forest NEP. Thus, our study advocates the need for partitioning ecosystem responses to improve empirical and modelling assessments of carbon cycle–climate feedbacks in boreal forests. It further implies that the forest age structure may strongly determine the carbon sink response to the projected increase in drought events across the managed boreal landscape. Article in Journal/Newspaper Northern Sweden Natural Resources Institute Finland: Jukuri Nature Geoscience 17 3 197 204 |
institution |
Open Polar |
collection |
Natural Resources Institute Finland: Jukuri |
op_collection_id |
ftluke |
language |
English |
description |
The boreal forest is an important global carbon sink, but its response to drought remains uncertain. Here, we compiled biometric- and chamber-based flux data from 50 boreal forest stands to assess the impact of the 2018 European summer drought on net ecosystem production (NEP) across a 68 km2 managed landscape in northern Sweden. Our results reveal a non-uniform reduction in NEP (on average by 80 ± 16 g C m−2 yr−1 or 57 ± 13%) across the landscape, which was greatest in young stands of 20–50 years (95 ± 39 g C m−2 yr−1), but gradually decreased towards older stands (54 ± 57 g C m−2 yr−1). This pattern was attributed to the higher sensitivity of forest-floor understorey to drought and its decreasing contribution to production relative to trees during stand development. This suggests that an age-dependent shift in understorey–tree composition with increasing stand age drives the drought response of the boreal forest NEP. Thus, our study advocates the need for partitioning ecosystem responses to improve empirical and modelling assessments of carbon cycle–climate feedbacks in boreal forests. It further implies that the forest age structure may strongly determine the carbon sink response to the projected increase in drought events across the managed boreal landscape. |
author2 |
orcid:0000-0003-2176-9671 4100311110 Luonnonvarakeskus |
format |
Article in Journal/Newspaper |
author |
Martínez-García, Eduardo Nilsson, Mats B. Laudon, Hjalmar Lundmark, Tomas Fransson, Johan E. S. Wallerman, Jörgen Peichl, Matthias |
spellingShingle |
Martínez-García, Eduardo Nilsson, Mats B. Laudon, Hjalmar Lundmark, Tomas Fransson, Johan E. S. Wallerman, Jörgen Peichl, Matthias Drought response of the boreal forest carbon sink is driven by understorey–tree composition |
author_facet |
Martínez-García, Eduardo Nilsson, Mats B. Laudon, Hjalmar Lundmark, Tomas Fransson, Johan E. S. Wallerman, Jörgen Peichl, Matthias |
author_sort |
Martínez-García, Eduardo |
title |
Drought response of the boreal forest carbon sink is driven by understorey–tree composition |
title_short |
Drought response of the boreal forest carbon sink is driven by understorey–tree composition |
title_full |
Drought response of the boreal forest carbon sink is driven by understorey–tree composition |
title_fullStr |
Drought response of the boreal forest carbon sink is driven by understorey–tree composition |
title_full_unstemmed |
Drought response of the boreal forest carbon sink is driven by understorey–tree composition |
title_sort |
drought response of the boreal forest carbon sink is driven by understorey–tree composition |
publisher |
Springer Nature |
url |
https://jukuri.luke.fi/handle/10024/554685 https://doi.org/10.1038/s41561-024-01374-9 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_relation |
Nature geoscience 10.1038/s41561-024-01374-9 1752-0894 1752-0908 17 How to cite: Martínez-García, E., Nilsson, M.B., Laudon, H. et al. Drought response of the boreal forest carbon sink is driven by understorey–tree composition. Nat. Geosci. 17, 197–204 (2024). https://doi.org/10.1038/s41561-024-01374-9 https://jukuri.luke.fi/handle/10024/554685 URN:NBN:fi-fe2024072662731 http://dx.doi.org/10.1038/s41561-024-01374-9 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.1038/s41561-024-01374-9 |
container_title |
Nature Geoscience |
container_volume |
17 |
container_issue |
3 |
container_start_page |
197 |
op_container_end_page |
204 |
_version_ |
1810466593625341952 |