Icelandic grasslands as long-term C sinks under elevated organic N inputs
About 10% of the anthropogenic CO 2 emissions have been absorbed by northern terrestrial ecosystems during the past decades. It has been hypothesized that part of this increasing carbon (C) sink is caused by the alleviation of nitrogen (N) limitation by increasing anthropogenic N inputs. However, li...
Published in: | Biogeochemistry |
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Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2017
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Online Access: | https://research.vu.nl/en/publications/b3eed5a7-194c-4324-a8b0-781c64f89e1a https://doi.org/10.1007/s10533-017-0362-5 https://hdl.handle.net/1871.1/b3eed5a7-194c-4324-a8b0-781c64f89e1a https://research.vu.nl/ws/files/299296537/Icelandic_grasslands_as_long-term_C_sinks_under_elevated_organic_N_inputs.pdf http://www.scopus.com/inward/record.url?scp=85026911884&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85026911884&partnerID=8YFLogxK |
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ftvuamstcris:oai:research.vu.nl:publications/b3eed5a7-194c-4324-a8b0-781c64f89e1a 2024-05-12T08:11:46+00:00 Icelandic grasslands as long-term C sinks under elevated organic N inputs Leblans, Niki I.W. Sigurdsson, Bjarni D. Aerts, Rien Vicca, Sara Magnússon, Borgthór Janssens, Ivan A. 2017-08 application/pdf https://research.vu.nl/en/publications/b3eed5a7-194c-4324-a8b0-781c64f89e1a https://doi.org/10.1007/s10533-017-0362-5 https://hdl.handle.net/1871.1/b3eed5a7-194c-4324-a8b0-781c64f89e1a https://research.vu.nl/ws/files/299296537/Icelandic_grasslands_as_long-term_C_sinks_under_elevated_organic_N_inputs.pdf http://www.scopus.com/inward/record.url?scp=85026911884&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85026911884&partnerID=8YFLogxK eng eng https://research.vu.nl/en/publications/b3eed5a7-194c-4324-a8b0-781c64f89e1a info:eu-repo/semantics/openAccess Leblans , N I W , Sigurdsson , B D , Aerts , R , Vicca , S , Magnússon , B & Janssens , I A 2017 , ' Icelandic grasslands as long-term C sinks under elevated organic N inputs ' , Biogeochemistry , vol. 134 , no. 3 , pp. 279-299 . https://doi.org/10.1007/s10533-017-0362-5 Long-term carbon storage N inputs Soil development Surtsey Terrestrial C sink /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2017 ftvuamstcris https://doi.org/10.1007/s10533-017-0362-5 2024-04-16T02:28:18Z About 10% of the anthropogenic CO 2 emissions have been absorbed by northern terrestrial ecosystems during the past decades. It has been hypothesized that part of this increasing carbon (C) sink is caused by the alleviation of nitrogen (N) limitation by increasing anthropogenic N inputs. However, little is known about this N-dependent C sink. Here, we studied the effect of chronic seabird-derived N inputs (47–67 kg N ha −1 year −1 ) on the net soil organic C (SOC) storage rate of unmanaged Icelandic grasslands on the volcanic Vestmannaeyjar archipelago by using a stock change approach in combination with soil dating. We studied both early developmental (young) soils that had been receiving increased N inputs over a decadal timescale since an eruption in 1963, and well-developed soils, that had been receiving N inputs over a millennial timescale. For the latter, however, the effects on both decadal (topsoil; 40 years) and millennial (total soil profile; 1600 years) SOC storage could be studied, as the age of topsoil and the total soil profile could be determined from volcanic ash layers deposited in 1973 and 395 AD. We found that enhanced N availability—either from accumulation over time, or seabird derived—increased the net SOC storage rate. Under low N inputs, early developmental soils were weak decadal C sinks (0.018 ton SOC ha −1 year −1 ), but this increased quickly under ca. 30 years of elevated N inputs to 0.29 ton SOC ha −1 year −1 , thereby equalling the decadal SOC storage rate of the unfertilized well-developed soils. Furthermore, for the well-developed soils, chronically elevated N inputs not only stimulated the decadal SOC storage rate in the topsoil, but also the total millennial SOC storage was consistently higher. Hence, our study suggests that Icelandic grasslands, if not disturbed, can remain C sinks for many centuries under current climatic conditions and that chronically elevated N inputs can induce a permanent strengthening of this sink. Article in Journal/Newspaper Surtsey Vestmannaeyjar Vrije Universiteit Amsterdam (VU): Research Portal Surtsey ENVELOPE(-20.608,-20.608,63.301,63.301) Vestmannaeyjar ENVELOPE(-20.391,-20.391,63.362,63.362) Biogeochemistry 134 3 279 299 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
Long-term carbon storage N inputs Soil development Surtsey Terrestrial C sink /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Long-term carbon storage N inputs Soil development Surtsey Terrestrial C sink /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Leblans, Niki I.W. Sigurdsson, Bjarni D. Aerts, Rien Vicca, Sara Magnússon, Borgthór Janssens, Ivan A. Icelandic grasslands as long-term C sinks under elevated organic N inputs |
topic_facet |
Long-term carbon storage N inputs Soil development Surtsey Terrestrial C sink /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
About 10% of the anthropogenic CO 2 emissions have been absorbed by northern terrestrial ecosystems during the past decades. It has been hypothesized that part of this increasing carbon (C) sink is caused by the alleviation of nitrogen (N) limitation by increasing anthropogenic N inputs. However, little is known about this N-dependent C sink. Here, we studied the effect of chronic seabird-derived N inputs (47–67 kg N ha −1 year −1 ) on the net soil organic C (SOC) storage rate of unmanaged Icelandic grasslands on the volcanic Vestmannaeyjar archipelago by using a stock change approach in combination with soil dating. We studied both early developmental (young) soils that had been receiving increased N inputs over a decadal timescale since an eruption in 1963, and well-developed soils, that had been receiving N inputs over a millennial timescale. For the latter, however, the effects on both decadal (topsoil; 40 years) and millennial (total soil profile; 1600 years) SOC storage could be studied, as the age of topsoil and the total soil profile could be determined from volcanic ash layers deposited in 1973 and 395 AD. We found that enhanced N availability—either from accumulation over time, or seabird derived—increased the net SOC storage rate. Under low N inputs, early developmental soils were weak decadal C sinks (0.018 ton SOC ha −1 year −1 ), but this increased quickly under ca. 30 years of elevated N inputs to 0.29 ton SOC ha −1 year −1 , thereby equalling the decadal SOC storage rate of the unfertilized well-developed soils. Furthermore, for the well-developed soils, chronically elevated N inputs not only stimulated the decadal SOC storage rate in the topsoil, but also the total millennial SOC storage was consistently higher. Hence, our study suggests that Icelandic grasslands, if not disturbed, can remain C sinks for many centuries under current climatic conditions and that chronically elevated N inputs can induce a permanent strengthening of this sink. |
format |
Article in Journal/Newspaper |
author |
Leblans, Niki I.W. Sigurdsson, Bjarni D. Aerts, Rien Vicca, Sara Magnússon, Borgthór Janssens, Ivan A. |
author_facet |
Leblans, Niki I.W. Sigurdsson, Bjarni D. Aerts, Rien Vicca, Sara Magnússon, Borgthór Janssens, Ivan A. |
author_sort |
Leblans, Niki I.W. |
title |
Icelandic grasslands as long-term C sinks under elevated organic N inputs |
title_short |
Icelandic grasslands as long-term C sinks under elevated organic N inputs |
title_full |
Icelandic grasslands as long-term C sinks under elevated organic N inputs |
title_fullStr |
Icelandic grasslands as long-term C sinks under elevated organic N inputs |
title_full_unstemmed |
Icelandic grasslands as long-term C sinks under elevated organic N inputs |
title_sort |
icelandic grasslands as long-term c sinks under elevated organic n inputs |
publishDate |
2017 |
url |
https://research.vu.nl/en/publications/b3eed5a7-194c-4324-a8b0-781c64f89e1a https://doi.org/10.1007/s10533-017-0362-5 https://hdl.handle.net/1871.1/b3eed5a7-194c-4324-a8b0-781c64f89e1a https://research.vu.nl/ws/files/299296537/Icelandic_grasslands_as_long-term_C_sinks_under_elevated_organic_N_inputs.pdf http://www.scopus.com/inward/record.url?scp=85026911884&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85026911884&partnerID=8YFLogxK |
long_lat |
ENVELOPE(-20.608,-20.608,63.301,63.301) ENVELOPE(-20.391,-20.391,63.362,63.362) |
geographic |
Surtsey Vestmannaeyjar |
geographic_facet |
Surtsey Vestmannaeyjar |
genre |
Surtsey Vestmannaeyjar |
genre_facet |
Surtsey Vestmannaeyjar |
op_source |
Leblans , N I W , Sigurdsson , B D , Aerts , R , Vicca , S , Magnússon , B & Janssens , I A 2017 , ' Icelandic grasslands as long-term C sinks under elevated organic N inputs ' , Biogeochemistry , vol. 134 , no. 3 , pp. 279-299 . https://doi.org/10.1007/s10533-017-0362-5 |
op_relation |
https://research.vu.nl/en/publications/b3eed5a7-194c-4324-a8b0-781c64f89e1a |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s10533-017-0362-5 |
container_title |
Biogeochemistry |
container_volume |
134 |
container_issue |
3 |
container_start_page |
279 |
op_container_end_page |
299 |
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1798833968355737600 |