Decline in ecosystem delta 13C and mid-successional nitrogen loss in a two-century glacial chronosequence
Uncertainty about controls on long-term carbon and nitrogen balance, turnover, and isotopic signature currently limits our ability to predict ecosystem response to disturbance and landscape change. We used a two-century, post-glacial chronosequence in Glacier Bay, Alaska to explore the influence of...
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ftcemoa:oai:irsteadoc.irstea.fr:PUB00059273 2023-05-15T16:20:39+02:00 Decline in ecosystem delta 13C and mid-successional nitrogen loss in a two-century glacial chronosequence Malone, E.T. Abbott, B.W. Klaar, M. Kidd, C. Sebilo, M. Milner, A. Pinay, G. UNIVERSITY OF BIRMINGHAM GBR BRIGHAM YOUNG UNIVERSITY PROVO USA UNIVERSITY OF LEEDS GBR UNIVERSITY OF MARYLAND COLLEGE PARK USA SORBONNE UNIVERSITE CNRS IEES PARIS FRA IRSTEA LYON UR RIVERLY FRA 2018 application/pdf https://irsteadoc.irstea.fr/cemoa/PUB00059273 Anglais eng http://dx.doi.org/10.1007/s10021-018-0245-1 https://irsteadoc.irstea.fr/cemoa/PUB00059273 Date de dépôt: 2018-12-06 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). 52242 NITRIFICATION DENITRIFICATION SOL primary succession soil foliar 13C 15N Glacier Bay water use efficiency nutrient retention theory Article de revue scientifique à comité de lecture 2018 ftcemoa https://doi.org/10.1007/s10021-018-0245-1 2021-06-29T12:19:08Z Uncertainty about controls on long-term carbon and nitrogen balance, turnover, and isotopic signature currently limits our ability to predict ecosystem response to disturbance and landscape change. We used a two-century, post-glacial chronosequence in Glacier Bay, Alaska to explore the influence of carbon and nitrogen dynamics on soil and leaf stable isotopes. Carbon dynamics were closely linked to soil hydrology, with increasing soil water retention during ecosystem development resulting in a linear decrease in foliar and soil δ13C, independent of shifts in vegetation cover and despite constant precipitation across sites. Conversely, nitrogen dynamics responded to interactions between soil development, vegetation type, microbial community, and topography. Contrary to the predictions of nutrient retention theory, potential nitrification and denitrification were high virtually from the beginning of the chronosequence and gaseous and hydrological N losses were highest at mid-successional sites, 140 to 165 years since deglaciation. Though leaching of dissolved nitrogen is considered the predominant pathway of nitrogen loss at high latitudes, we found that gaseous nitrogen loss was more tightly correlated with δ15N enrichment. These results suggest that δ13C in leaves and soil can depend as much on soil development and associated water availability as on climate, and that nitrogen availability and export depend on interactions between topography, soil development, vegetation type, and microbial activity. Article in Journal/Newspaper glacier Alaska Irstea Publications et Bases documentaires (Irstea@doc/CemOA) Glacier Bay Ecosystems 21 8 1659 1675 |
institution |
Open Polar |
collection |
Irstea Publications et Bases documentaires (Irstea@doc/CemOA) |
op_collection_id |
ftcemoa |
language |
English |
topic |
NITRIFICATION DENITRIFICATION SOL primary succession soil foliar 13C 15N Glacier Bay water use efficiency nutrient retention theory |
spellingShingle |
NITRIFICATION DENITRIFICATION SOL primary succession soil foliar 13C 15N Glacier Bay water use efficiency nutrient retention theory Malone, E.T. Abbott, B.W. Klaar, M. Kidd, C. Sebilo, M. Milner, A. Pinay, G. Decline in ecosystem delta 13C and mid-successional nitrogen loss in a two-century glacial chronosequence |
topic_facet |
NITRIFICATION DENITRIFICATION SOL primary succession soil foliar 13C 15N Glacier Bay water use efficiency nutrient retention theory |
description |
Uncertainty about controls on long-term carbon and nitrogen balance, turnover, and isotopic signature currently limits our ability to predict ecosystem response to disturbance and landscape change. We used a two-century, post-glacial chronosequence in Glacier Bay, Alaska to explore the influence of carbon and nitrogen dynamics on soil and leaf stable isotopes. Carbon dynamics were closely linked to soil hydrology, with increasing soil water retention during ecosystem development resulting in a linear decrease in foliar and soil δ13C, independent of shifts in vegetation cover and despite constant precipitation across sites. Conversely, nitrogen dynamics responded to interactions between soil development, vegetation type, microbial community, and topography. Contrary to the predictions of nutrient retention theory, potential nitrification and denitrification were high virtually from the beginning of the chronosequence and gaseous and hydrological N losses were highest at mid-successional sites, 140 to 165 years since deglaciation. Though leaching of dissolved nitrogen is considered the predominant pathway of nitrogen loss at high latitudes, we found that gaseous nitrogen loss was more tightly correlated with δ15N enrichment. These results suggest that δ13C in leaves and soil can depend as much on soil development and associated water availability as on climate, and that nitrogen availability and export depend on interactions between topography, soil development, vegetation type, and microbial activity. |
author2 |
UNIVERSITY OF BIRMINGHAM GBR BRIGHAM YOUNG UNIVERSITY PROVO USA UNIVERSITY OF LEEDS GBR UNIVERSITY OF MARYLAND COLLEGE PARK USA SORBONNE UNIVERSITE CNRS IEES PARIS FRA IRSTEA LYON UR RIVERLY FRA |
format |
Article in Journal/Newspaper |
author |
Malone, E.T. Abbott, B.W. Klaar, M. Kidd, C. Sebilo, M. Milner, A. Pinay, G. |
author_facet |
Malone, E.T. Abbott, B.W. Klaar, M. Kidd, C. Sebilo, M. Milner, A. Pinay, G. |
author_sort |
Malone, E.T. |
title |
Decline in ecosystem delta 13C and mid-successional nitrogen loss in a two-century glacial chronosequence |
title_short |
Decline in ecosystem delta 13C and mid-successional nitrogen loss in a two-century glacial chronosequence |
title_full |
Decline in ecosystem delta 13C and mid-successional nitrogen loss in a two-century glacial chronosequence |
title_fullStr |
Decline in ecosystem delta 13C and mid-successional nitrogen loss in a two-century glacial chronosequence |
title_full_unstemmed |
Decline in ecosystem delta 13C and mid-successional nitrogen loss in a two-century glacial chronosequence |
title_sort |
decline in ecosystem delta 13c and mid-successional nitrogen loss in a two-century glacial chronosequence |
publishDate |
2018 |
url |
https://irsteadoc.irstea.fr/cemoa/PUB00059273 |
geographic |
Glacier Bay |
geographic_facet |
Glacier Bay |
genre |
glacier Alaska |
genre_facet |
glacier Alaska |
op_source |
52242 |
op_relation |
http://dx.doi.org/10.1007/s10021-018-0245-1 https://irsteadoc.irstea.fr/cemoa/PUB00059273 |
op_rights |
Date de dépôt: 2018-12-06 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). |
op_doi |
https://doi.org/10.1007/s10021-018-0245-1 |
container_title |
Ecosystems |
container_volume |
21 |
container_issue |
8 |
container_start_page |
1659 |
op_container_end_page |
1675 |
_version_ |
1766008605094445056 |