Changes in soil and plant carbon pools after 9 years of experimental summer warming and increased snow depth
Climate change can have positive and negative effects on the carbon pools and budgets in soil and plant fractions, but net effects are unclear and expected to vary widely within the arctic. We report responses after nine years (2012−2021) of increased snow depth (snow fences) and summer warming (ope...
Published in: | Science of The Total Environment |
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Language: | English |
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2024
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Online Access: | https://curis.ku.dk/portal/da/publications/changes-in-soil-and-plant-carbon-pools-after-9-years-of-experimental-summer-warming-and-increased-snow-depth(7b993720-dece-462d-8481-9cde7a8b2b65).html https://doi.org/10.1016/j.scitotenv.2024.175648 https://curis.ku.dk/ws/files/403446446/1_s2.0_S0048969724058042_main.pdf |
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ftcopenhagenunip:oai:pure.atira.dk:publications/7b993720-dece-462d-8481-9cde7a8b2b65 2024-09-30T14:31:42+00:00 Changes in soil and plant carbon pools after 9 years of experimental summer warming and increased snow depth Hermesdorf, Lena Mortensen, Louise H. Blitz, Sophia B. Jepsen, Malte S. Westergaard-Nielsen, Andreas Michelsen, Anders Blok, Daan Sigsgaard, Charlotte Christiansen, Casper T. Hansen, Birger Ulf Elberling, Bo 2024 application/pdf https://curis.ku.dk/portal/da/publications/changes-in-soil-and-plant-carbon-pools-after-9-years-of-experimental-summer-warming-and-increased-snow-depth(7b993720-dece-462d-8481-9cde7a8b2b65).html https://doi.org/10.1016/j.scitotenv.2024.175648 https://curis.ku.dk/ws/files/403446446/1_s2.0_S0048969724058042_main.pdf eng eng info:eu-repo/semantics/openAccess Hermesdorf , L , Mortensen , L H , Blitz , S B , Jepsen , M S , Westergaard-Nielsen , A , Michelsen , A , Blok , D , Sigsgaard , C , Christiansen , C T , Hansen , B U & Elberling , B 2024 , ' Changes in soil and plant carbon pools after 9 years of experimental summer warming and increased snow depth ' , Science of the Total Environment , vol. 951 , 175648 . https://doi.org/10.1016/j.scitotenv.2024.175648 Carbon pools Climate change NDVI Rhizosphere SOC Snow fence Tundra ecosystem article 2024 ftcopenhagenunip https://doi.org/10.1016/j.scitotenv.2024.175648 2024-09-17T00:25:17Z Climate change can have positive and negative effects on the carbon pools and budgets in soil and plant fractions, but net effects are unclear and expected to vary widely within the arctic. We report responses after nine years (2012−2021) of increased snow depth (snow fences) and summer warming (open top chambers) and the combination on soil and plant carbon pools within a tundra ecosystem in West Greenland. Data included characteristics of depth-specific soil samples, including the rhizosphere soil, as well as vegetation responses of NDVI-derived traits, plant species cover and aboveground biomass, litter and roots. Furthermore, natural vegetation growth through the study period was quantified based on time-integrated NDVI Landsat 8 satellite imagery. Our results showed that summer warming resulted in a significant and positive vegetation response driven by the deciduous low shrub Betula nana (no other vascular plant species), while snow addition alone resulted in a significant negative response for Betula. A significant positive effect of summer warming was also observed for moss biomass, possibly driven increasing shade by Betula. The aboveground effects cascaded to belowground traits. The rhizosphere soil characteristics differed from those of the bulk soil regardless of treatment. Only the rhizosphere fraction showed responses to treatment, as soil organic C stock increased in near-surface and top 20 cm with summer warming. We observed no belowground effects from snow addition. The study highlights the plant species response to treatment followed by impacts on belowground C pools, mainly driven by dead fine roots via Betula nana. We conclude that the summer warming treatment and snow addition treatment separately showed opposing effects on ecosystem C pools, with lack of interactive effects between main factors in the combination treatment. Furthermore, changes in soil C are more clearly observed in the rhizosphere soil fraction, which should receive more attention in the future. Climate change can have ... Article in Journal/Newspaper Arctic Betula nana Climate change Greenland Tundra University of Copenhagen: Research Arctic Greenland Science of The Total Environment 951 175648 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
Carbon pools Climate change NDVI Rhizosphere SOC Snow fence Tundra ecosystem |
spellingShingle |
Carbon pools Climate change NDVI Rhizosphere SOC Snow fence Tundra ecosystem Hermesdorf, Lena Mortensen, Louise H. Blitz, Sophia B. Jepsen, Malte S. Westergaard-Nielsen, Andreas Michelsen, Anders Blok, Daan Sigsgaard, Charlotte Christiansen, Casper T. Hansen, Birger Ulf Elberling, Bo Changes in soil and plant carbon pools after 9 years of experimental summer warming and increased snow depth |
topic_facet |
Carbon pools Climate change NDVI Rhizosphere SOC Snow fence Tundra ecosystem |
description |
Climate change can have positive and negative effects on the carbon pools and budgets in soil and plant fractions, but net effects are unclear and expected to vary widely within the arctic. We report responses after nine years (2012−2021) of increased snow depth (snow fences) and summer warming (open top chambers) and the combination on soil and plant carbon pools within a tundra ecosystem in West Greenland. Data included characteristics of depth-specific soil samples, including the rhizosphere soil, as well as vegetation responses of NDVI-derived traits, plant species cover and aboveground biomass, litter and roots. Furthermore, natural vegetation growth through the study period was quantified based on time-integrated NDVI Landsat 8 satellite imagery. Our results showed that summer warming resulted in a significant and positive vegetation response driven by the deciduous low shrub Betula nana (no other vascular plant species), while snow addition alone resulted in a significant negative response for Betula. A significant positive effect of summer warming was also observed for moss biomass, possibly driven increasing shade by Betula. The aboveground effects cascaded to belowground traits. The rhizosphere soil characteristics differed from those of the bulk soil regardless of treatment. Only the rhizosphere fraction showed responses to treatment, as soil organic C stock increased in near-surface and top 20 cm with summer warming. We observed no belowground effects from snow addition. The study highlights the plant species response to treatment followed by impacts on belowground C pools, mainly driven by dead fine roots via Betula nana. We conclude that the summer warming treatment and snow addition treatment separately showed opposing effects on ecosystem C pools, with lack of interactive effects between main factors in the combination treatment. Furthermore, changes in soil C are more clearly observed in the rhizosphere soil fraction, which should receive more attention in the future. Climate change can have ... |
format |
Article in Journal/Newspaper |
author |
Hermesdorf, Lena Mortensen, Louise H. Blitz, Sophia B. Jepsen, Malte S. Westergaard-Nielsen, Andreas Michelsen, Anders Blok, Daan Sigsgaard, Charlotte Christiansen, Casper T. Hansen, Birger Ulf Elberling, Bo |
author_facet |
Hermesdorf, Lena Mortensen, Louise H. Blitz, Sophia B. Jepsen, Malte S. Westergaard-Nielsen, Andreas Michelsen, Anders Blok, Daan Sigsgaard, Charlotte Christiansen, Casper T. Hansen, Birger Ulf Elberling, Bo |
author_sort |
Hermesdorf, Lena |
title |
Changes in soil and plant carbon pools after 9 years of experimental summer warming and increased snow depth |
title_short |
Changes in soil and plant carbon pools after 9 years of experimental summer warming and increased snow depth |
title_full |
Changes in soil and plant carbon pools after 9 years of experimental summer warming and increased snow depth |
title_fullStr |
Changes in soil and plant carbon pools after 9 years of experimental summer warming and increased snow depth |
title_full_unstemmed |
Changes in soil and plant carbon pools after 9 years of experimental summer warming and increased snow depth |
title_sort |
changes in soil and plant carbon pools after 9 years of experimental summer warming and increased snow depth |
publishDate |
2024 |
url |
https://curis.ku.dk/portal/da/publications/changes-in-soil-and-plant-carbon-pools-after-9-years-of-experimental-summer-warming-and-increased-snow-depth(7b993720-dece-462d-8481-9cde7a8b2b65).html https://doi.org/10.1016/j.scitotenv.2024.175648 https://curis.ku.dk/ws/files/403446446/1_s2.0_S0048969724058042_main.pdf |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Betula nana Climate change Greenland Tundra |
genre_facet |
Arctic Betula nana Climate change Greenland Tundra |
op_source |
Hermesdorf , L , Mortensen , L H , Blitz , S B , Jepsen , M S , Westergaard-Nielsen , A , Michelsen , A , Blok , D , Sigsgaard , C , Christiansen , C T , Hansen , B U & Elberling , B 2024 , ' Changes in soil and plant carbon pools after 9 years of experimental summer warming and increased snow depth ' , Science of the Total Environment , vol. 951 , 175648 . https://doi.org/10.1016/j.scitotenv.2024.175648 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.scitotenv.2024.175648 |
container_title |
Science of The Total Environment |
container_volume |
951 |
container_start_page |
175648 |
_version_ |
1811636119590141952 |