Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads

Autores
Fritz, C.; van Dijk, G.; Smolders, A. J. P.; Pancotto, Veronica Andrea; Elzenga, T. J. T. M.; Roelofs, J. G. M.; Grootjans, A. P.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Sphagnum-bog ecosystems have a limited capability to retain carbon and nutrients when subjected to increased nitrogen (N) deposition. Although it has been proposed that phosphorus (P) can dilute negative effects of nitrogen by increasing biomass production of Sphagnum mosses, it is still unclear whether P-addition can alleviate physiological N-stress in Sphagnum plants. A 3-year fertilisation experiment was conducted in lawns of a pristine Sphagnum magellanicum bog in Patagonia, where competing vascular plants were practically absent. Background wet deposition of nitrogen was low (∼0.1-0.2g·N·m -2·year -1). Nitrogen (4g·N·m -2·year -1) and phosphorus (1g·P·m -2·year -1) were applied, separately and in combination, six times during the growing season. P-addition substantially increased biomass production of Sphagnum. Nitrogen and phosphorus changed the morphology of Sphagnum mosses by enhancing height increment, but lowering moss stem density. In contrast to expectations, phosphorus failed to alleviate physiological stress imposed by excess nitrogen (e.g. amino acid accumulation, N-saturation and decline in photosynthetic rates). We conclude that despite improving growth conditions by P-addition, Sphagnum-bog ecosystems remain highly susceptible to nitrogen additions. Increased susceptibility to desiccation by nutrients may even worsen the negative effects of excess nitrogen especially in windy climates like in Patagonia.
Fil: Fritz, C.. Radboud Universiteit Nijmegen; Países Bajos
Fil: van Dijk, G.. Radboud Universiteit Nijmegen; Países Bajos
Fil: Smolders, A. J. P.. Radboud Universiteit Nijmegen; Países Bajos
Fil: Pancotto, Veronica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Elzenga, T. J. T. M.. University Of Groningen; Países Bajos
Fil: Roelofs, J. G. M.. Radboud Universiteit Nijmegen; Países Bajos
Fil: Grootjans, A. P.. Radboud Universiteit Nijmegen; Países Bajos
Materia
DROUGHT
GROWTH
N:P RATIOS
NITROGEN
PEAT
PHOSPHORUS LIMITATION
PHOTOSYNTHESIS
SPHAGNUM
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/94942
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/94942
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loadsFritz, C.van Dijk, G.Smolders, A. J. P.Pancotto, Veronica AndreaElzenga, T. J. T. M.Roelofs, J. G. M.Grootjans, A. P.DROUGHTGROWTHN:P RATIOSNITROGENPEATPHOSPHORUS LIMITATIONPHOTOSYNTHESISSPHAGNUMhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Sphagnum-bog ecosystems have a limited capability to retain carbon and nutrients when subjected to increased nitrogen (N) deposition. Although it has been proposed that phosphorus (P) can dilute negative effects of nitrogen by increasing biomass production of Sphagnum mosses, it is still unclear whether P-addition can alleviate physiological N-stress in Sphagnum plants. A 3-year fertilisation experiment was conducted in lawns of a pristine Sphagnum magellanicum bog in Patagonia, where competing vascular plants were practically absent. Background wet deposition of nitrogen was low (∼0.1-0.2g·N·m -2·year -1). Nitrogen (4g·N·m -2·year -1) and phosphorus (1g·P·m -2·year -1) were applied, separately and in combination, six times during the growing season. P-addition substantially increased biomass production of Sphagnum. Nitrogen and phosphorus changed the morphology of Sphagnum mosses by enhancing height increment, but lowering moss stem density. In contrast to expectations, phosphorus failed to alleviate physiological stress imposed by excess nitrogen (e.g. amino acid accumulation, N-saturation and decline in photosynthetic rates). We conclude that despite improving growth conditions by P-addition, Sphagnum-bog ecosystems remain highly susceptible to nitrogen additions. Increased susceptibility to desiccation by nutrients may even worsen the negative effects of excess nitrogen especially in windy climates like in Patagonia.Fil: Fritz, C.. Radboud Universiteit Nijmegen; Países BajosFil: van Dijk, G.. Radboud Universiteit Nijmegen; Países BajosFil: Smolders, A. J. P.. Radboud Universiteit Nijmegen; Países BajosFil: Pancotto, Veronica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Elzenga, T. J. T. M.. University Of Groningen; Países BajosFil: Roelofs, J. G. M.. Radboud Universiteit Nijmegen; Países BajosFil: Grootjans, A. P.. Radboud Universiteit Nijmegen; Países BajosWiley Blackwell Publishing, Inc2012-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94942Fritz, C.; van Dijk, G.; Smolders, A. J. P.; Pancotto, Veronica Andrea; Elzenga, T. J. T. M.; et al.; Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads; Wiley Blackwell Publishing, Inc; Plant Biology; 14; 3; 5-2012; 491-4991435-8603CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1438-8677.2011.00527.xinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1438-8677.2011.00527.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:18:37Zoai:ri.conicet.gov.ar:11336/94942instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:18:38.264CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads
title Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads
spellingShingle Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads
Fritz, C.
DROUGHT
GROWTH
N:P RATIOS
NITROGEN
PEAT
PHOSPHORUS LIMITATION
PHOTOSYNTHESIS
SPHAGNUM
title_short Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads
title_full Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads
title_fullStr Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads
title_full_unstemmed Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads
title_sort Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads
dc.creator.none.fl_str_mv Fritz, C.
van Dijk, G.
Smolders, A. J. P.
Pancotto, Veronica Andrea
Elzenga, T. J. T. M.
Roelofs, J. G. M.
Grootjans, A. P.
author Fritz, C.
author_facet Fritz, C.
van Dijk, G.
Smolders, A. J. P.
Pancotto, Veronica Andrea
Elzenga, T. J. T. M.
Roelofs, J. G. M.
Grootjans, A. P.
author_role author
author2 van Dijk, G.
Smolders, A. J. P.
Pancotto, Veronica Andrea
Elzenga, T. J. T. M.
Roelofs, J. G. M.
Grootjans, A. P.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv DROUGHT
GROWTH
N:P RATIOS
NITROGEN
PEAT
PHOSPHORUS LIMITATION
PHOTOSYNTHESIS
SPHAGNUM
topic DROUGHT
GROWTH
N:P RATIOS
NITROGEN
PEAT
PHOSPHORUS LIMITATION
PHOTOSYNTHESIS
SPHAGNUM
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Sphagnum-bog ecosystems have a limited capability to retain carbon and nutrients when subjected to increased nitrogen (N) deposition. Although it has been proposed that phosphorus (P) can dilute negative effects of nitrogen by increasing biomass production of Sphagnum mosses, it is still unclear whether P-addition can alleviate physiological N-stress in Sphagnum plants. A 3-year fertilisation experiment was conducted in lawns of a pristine Sphagnum magellanicum bog in Patagonia, where competing vascular plants were practically absent. Background wet deposition of nitrogen was low (∼0.1-0.2g·N·m -2·year -1). Nitrogen (4g·N·m -2·year -1) and phosphorus (1g·P·m -2·year -1) were applied, separately and in combination, six times during the growing season. P-addition substantially increased biomass production of Sphagnum. Nitrogen and phosphorus changed the morphology of Sphagnum mosses by enhancing height increment, but lowering moss stem density. In contrast to expectations, phosphorus failed to alleviate physiological stress imposed by excess nitrogen (e.g. amino acid accumulation, N-saturation and decline in photosynthetic rates). We conclude that despite improving growth conditions by P-addition, Sphagnum-bog ecosystems remain highly susceptible to nitrogen additions. Increased susceptibility to desiccation by nutrients may even worsen the negative effects of excess nitrogen especially in windy climates like in Patagonia.
Fil: Fritz, C.. Radboud Universiteit Nijmegen; Países Bajos
Fil: van Dijk, G.. Radboud Universiteit Nijmegen; Países Bajos
Fil: Smolders, A. J. P.. Radboud Universiteit Nijmegen; Países Bajos
Fil: Pancotto, Veronica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Elzenga, T. J. T. M.. University Of Groningen; Países Bajos
Fil: Roelofs, J. G. M.. Radboud Universiteit Nijmegen; Países Bajos
Fil: Grootjans, A. P.. Radboud Universiteit Nijmegen; Países Bajos
description Sphagnum-bog ecosystems have a limited capability to retain carbon and nutrients when subjected to increased nitrogen (N) deposition. Although it has been proposed that phosphorus (P) can dilute negative effects of nitrogen by increasing biomass production of Sphagnum mosses, it is still unclear whether P-addition can alleviate physiological N-stress in Sphagnum plants. A 3-year fertilisation experiment was conducted in lawns of a pristine Sphagnum magellanicum bog in Patagonia, where competing vascular plants were practically absent. Background wet deposition of nitrogen was low (∼0.1-0.2g·N·m -2·year -1). Nitrogen (4g·N·m -2·year -1) and phosphorus (1g·P·m -2·year -1) were applied, separately and in combination, six times during the growing season. P-addition substantially increased biomass production of Sphagnum. Nitrogen and phosphorus changed the morphology of Sphagnum mosses by enhancing height increment, but lowering moss stem density. In contrast to expectations, phosphorus failed to alleviate physiological stress imposed by excess nitrogen (e.g. amino acid accumulation, N-saturation and decline in photosynthetic rates). We conclude that despite improving growth conditions by P-addition, Sphagnum-bog ecosystems remain highly susceptible to nitrogen additions. Increased susceptibility to desiccation by nutrients may even worsen the negative effects of excess nitrogen especially in windy climates like in Patagonia.
publishDate 2012
dc.date.none.fl_str_mv 2012-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/94942
Fritz, C.; van Dijk, G.; Smolders, A. J. P.; Pancotto, Veronica Andrea; Elzenga, T. J. T. M.; et al.; Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads; Wiley Blackwell Publishing, Inc; Plant Biology; 14; 3; 5-2012; 491-499
1435-8603
CONICET Digital
CONICET
url http://hdl.handle.net/11336/94942
identifier_str_mv Fritz, C.; van Dijk, G.; Smolders, A. J. P.; Pancotto, Veronica Andrea; Elzenga, T. J. T. M.; et al.; Nutrient additions in pristine Patagonian Sphagnum bog vegetation: Can phosphorus addition alleviate (the effects of) increased nitrogen loads; Wiley Blackwell Publishing, Inc; Plant Biology; 14; 3; 5-2012; 491-499
1435-8603
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1438-8677.2011.00527.x
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1438-8677.2011.00527.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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