Latitude, Elevation, and Mean Annual Temperature Predict Peat Organic Matter Chemistry at a Global Scale

Autores
Verbeke, Brittany A.; Lamit, Louis J.; Lilleskov, Erik A.; Hodgkins, Suzanne B.; Basiliko, Nathan; Kane, Evan S.; Andersen, Roxane; Artz, Rebekka R. E.; Benavides, Juan Carlos; Enriquez, Andrea Soledad; Chanton, Jeffrey P.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Peatlands contain a significant fraction of global soil carbon, but how these reservoirs will respond to the changing climate is still relatively unknown. A global picture of the variations in peat organic matter chemistry will aid our ability to gauge peatland soil response to climate. The goal of this research is to test the hypotheses that (a) peat carbohydrate content, an indicator of soil organic matter reactivity, will increase with latitude and decrease with mean annual temperatures, (b) while peat aromatic content, an indicator of recalcitrance, will vary inversely, and (c) elevation will have a similar effect to latitude. We used Fourier Transform Infrared Spectroscopy to examine variations in the organic matter functional groups of 1034 peat samples collected from 10 to 20, 30–40, and 60–70 cm depths at 165 individual sites across a latitudinal gradient of 79°N–65°S and from elevations of 0–4,773 m. Carbohydrate contents of high latitude peat were significantly greater than peat originating near the equator, while aromatic content showed the opposite trend. For peat from similar latitudes but different elevations, the carbohydrate content was greater and aromatic content was lower at higher elevations. Higher carbohydrate content at higher latitudes indicates a greater potential for mineralization, whereas the chemical composition of low latitude peat is consistent with their apparent relative stability in the face of warmer temperatures. The combination of low carbohydrates and high aromatics at warmer locations near the equator suggests the mineralization of high latitude peat until reaching recalcitrance under a new temperature regime.
Estación Experimental Agropecuaria Bariloche
Fil: Verbeke, Brittany A. Florida State University. Department of Earth, Ocean, and Atmospheric Science; Estados Unidos
Fil: Lamit, Louis J. Syracuse University. Department of Biology, Department of Environmental and Forest Biology; Estados Unidos
Fil: Lilleskov, Erik A. USDA Forest Service; Estados Unidos
Fil: Hodgkins, Suzanne B. Florida State University. Department of Chemistry and Biochemistry; Estados Unidos
Fil: Basiliko, Nathan. Laurentian University. Department of Biology and the Vale Living with Lakes Centre; Canada
Fil: Kane, Evan S. USDA Forest Service; Estados Unidos
Fil: Andersen, Roxane. University of the Highlands and Islands. Environmental Research Institute; Reino Unido
Fil: Artz, Rebekka R. E. Ecological Sciences, James Hutton Institute; Reino Unido
Fil: Benavides, Juan Carlos. Pontificia Universidad Javeriana. Departmento de Ecología y Territorio; Colombia
Fil: Enriquez, Andrea Soledad. Instituto Nacional de Tecnologia Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área de Recursos Naturales; Argentina
Fil: Enriquez, Andrea Soledad. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina
Fil: Chanton, Jeffrey P. Florida State University. Department of Earth, Ocean, and Atmospheric Science; Estados Unidos
Fuente
Global Biogeochemical Cycles 36 (2) : 1-17 (2022)
Materia
Cambio Climático
Carbono Orgánico del Suelo
Turberas
Climate Change
Soil Organic Carbon
Peatlands
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/13982
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oai_identifier_str oai:localhost:20.500.12123/13982
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spelling Latitude, Elevation, and Mean Annual Temperature Predict Peat Organic Matter Chemistry at a Global ScaleVerbeke, Brittany A.Lamit, Louis J.Lilleskov, Erik A.Hodgkins, Suzanne B.Basiliko, NathanKane, Evan S.Andersen, RoxaneArtz, Rebekka R. E.Benavides, Juan CarlosEnriquez, Andrea SoledadChanton, Jeffrey P.Cambio ClimáticoCarbono Orgánico del SueloTurberasClimate ChangeSoil Organic CarbonPeatlandsPeatlands contain a significant fraction of global soil carbon, but how these reservoirs will respond to the changing climate is still relatively unknown. A global picture of the variations in peat organic matter chemistry will aid our ability to gauge peatland soil response to climate. The goal of this research is to test the hypotheses that (a) peat carbohydrate content, an indicator of soil organic matter reactivity, will increase with latitude and decrease with mean annual temperatures, (b) while peat aromatic content, an indicator of recalcitrance, will vary inversely, and (c) elevation will have a similar effect to latitude. We used Fourier Transform Infrared Spectroscopy to examine variations in the organic matter functional groups of 1034 peat samples collected from 10 to 20, 30–40, and 60–70 cm depths at 165 individual sites across a latitudinal gradient of 79°N–65°S and from elevations of 0–4,773 m. Carbohydrate contents of high latitude peat were significantly greater than peat originating near the equator, while aromatic content showed the opposite trend. For peat from similar latitudes but different elevations, the carbohydrate content was greater and aromatic content was lower at higher elevations. Higher carbohydrate content at higher latitudes indicates a greater potential for mineralization, whereas the chemical composition of low latitude peat is consistent with their apparent relative stability in the face of warmer temperatures. The combination of low carbohydrates and high aromatics at warmer locations near the equator suggests the mineralization of high latitude peat until reaching recalcitrance under a new temperature regime.Estación Experimental Agropecuaria BarilocheFil: Verbeke, Brittany A. Florida State University. Department of Earth, Ocean, and Atmospheric Science; Estados UnidosFil: Lamit, Louis J. Syracuse University. Department of Biology, Department of Environmental and Forest Biology; Estados UnidosFil: Lilleskov, Erik A. USDA Forest Service; Estados UnidosFil: Hodgkins, Suzanne B. Florida State University. Department of Chemistry and Biochemistry; Estados UnidosFil: Basiliko, Nathan. Laurentian University. Department of Biology and the Vale Living with Lakes Centre; CanadaFil: Kane, Evan S. USDA Forest Service; Estados UnidosFil: Andersen, Roxane. University of the Highlands and Islands. Environmental Research Institute; Reino UnidoFil: Artz, Rebekka R. E. Ecological Sciences, James Hutton Institute; Reino UnidoFil: Benavides, Juan Carlos. Pontificia Universidad Javeriana. Departmento de Ecología y Territorio; ColombiaFil: Enriquez, Andrea Soledad. Instituto Nacional de Tecnologia Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área de Recursos Naturales; ArgentinaFil: Enriquez, Andrea Soledad. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; ArgentinaFil: Chanton, Jeffrey P. Florida State University. Department of Earth, Ocean, and Atmospheric Science; Estados UnidosWiley2023-02-15T14:03:29Z2023-02-15T14:03:29Z2022-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/13982https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2021GB0070571944-9224https://doi.org/10.1029/2021GB007057Global Biogeochemical Cycles 36 (2) : 1-17 (2022)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-09-29T13:45:52Zoai:localhost:20.500.12123/13982instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:45:53.265INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Latitude, Elevation, and Mean Annual Temperature Predict Peat Organic Matter Chemistry at a Global Scale
title Latitude, Elevation, and Mean Annual Temperature Predict Peat Organic Matter Chemistry at a Global Scale
spellingShingle Latitude, Elevation, and Mean Annual Temperature Predict Peat Organic Matter Chemistry at a Global Scale
Verbeke, Brittany A.
Cambio Climático
Carbono Orgánico del Suelo
Turberas
Climate Change
Soil Organic Carbon
Peatlands
title_short Latitude, Elevation, and Mean Annual Temperature Predict Peat Organic Matter Chemistry at a Global Scale
title_full Latitude, Elevation, and Mean Annual Temperature Predict Peat Organic Matter Chemistry at a Global Scale
title_fullStr Latitude, Elevation, and Mean Annual Temperature Predict Peat Organic Matter Chemistry at a Global Scale
title_full_unstemmed Latitude, Elevation, and Mean Annual Temperature Predict Peat Organic Matter Chemistry at a Global Scale
title_sort Latitude, Elevation, and Mean Annual Temperature Predict Peat Organic Matter Chemistry at a Global Scale
dc.creator.none.fl_str_mv Verbeke, Brittany A.
Lamit, Louis J.
Lilleskov, Erik A.
Hodgkins, Suzanne B.
Basiliko, Nathan
Kane, Evan S.
Andersen, Roxane
Artz, Rebekka R. E.
Benavides, Juan Carlos
Enriquez, Andrea Soledad
Chanton, Jeffrey P.
author Verbeke, Brittany A.
author_facet Verbeke, Brittany A.
Lamit, Louis J.
Lilleskov, Erik A.
Hodgkins, Suzanne B.
Basiliko, Nathan
Kane, Evan S.
Andersen, Roxane
Artz, Rebekka R. E.
Benavides, Juan Carlos
Enriquez, Andrea Soledad
Chanton, Jeffrey P.
author_role author
author2 Lamit, Louis J.
Lilleskov, Erik A.
Hodgkins, Suzanne B.
Basiliko, Nathan
Kane, Evan S.
Andersen, Roxane
Artz, Rebekka R. E.
Benavides, Juan Carlos
Enriquez, Andrea Soledad
Chanton, Jeffrey P.
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Cambio Climático
Carbono Orgánico del Suelo
Turberas
Climate Change
Soil Organic Carbon
Peatlands
topic Cambio Climático
Carbono Orgánico del Suelo
Turberas
Climate Change
Soil Organic Carbon
Peatlands
dc.description.none.fl_txt_mv Peatlands contain a significant fraction of global soil carbon, but how these reservoirs will respond to the changing climate is still relatively unknown. A global picture of the variations in peat organic matter chemistry will aid our ability to gauge peatland soil response to climate. The goal of this research is to test the hypotheses that (a) peat carbohydrate content, an indicator of soil organic matter reactivity, will increase with latitude and decrease with mean annual temperatures, (b) while peat aromatic content, an indicator of recalcitrance, will vary inversely, and (c) elevation will have a similar effect to latitude. We used Fourier Transform Infrared Spectroscopy to examine variations in the organic matter functional groups of 1034 peat samples collected from 10 to 20, 30–40, and 60–70 cm depths at 165 individual sites across a latitudinal gradient of 79°N–65°S and from elevations of 0–4,773 m. Carbohydrate contents of high latitude peat were significantly greater than peat originating near the equator, while aromatic content showed the opposite trend. For peat from similar latitudes but different elevations, the carbohydrate content was greater and aromatic content was lower at higher elevations. Higher carbohydrate content at higher latitudes indicates a greater potential for mineralization, whereas the chemical composition of low latitude peat is consistent with their apparent relative stability in the face of warmer temperatures. The combination of low carbohydrates and high aromatics at warmer locations near the equator suggests the mineralization of high latitude peat until reaching recalcitrance under a new temperature regime.
Estación Experimental Agropecuaria Bariloche
Fil: Verbeke, Brittany A. Florida State University. Department of Earth, Ocean, and Atmospheric Science; Estados Unidos
Fil: Lamit, Louis J. Syracuse University. Department of Biology, Department of Environmental and Forest Biology; Estados Unidos
Fil: Lilleskov, Erik A. USDA Forest Service; Estados Unidos
Fil: Hodgkins, Suzanne B. Florida State University. Department of Chemistry and Biochemistry; Estados Unidos
Fil: Basiliko, Nathan. Laurentian University. Department of Biology and the Vale Living with Lakes Centre; Canada
Fil: Kane, Evan S. USDA Forest Service; Estados Unidos
Fil: Andersen, Roxane. University of the Highlands and Islands. Environmental Research Institute; Reino Unido
Fil: Artz, Rebekka R. E. Ecological Sciences, James Hutton Institute; Reino Unido
Fil: Benavides, Juan Carlos. Pontificia Universidad Javeriana. Departmento de Ecología y Territorio; Colombia
Fil: Enriquez, Andrea Soledad. Instituto Nacional de Tecnologia Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área de Recursos Naturales; Argentina
Fil: Enriquez, Andrea Soledad. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina
Fil: Chanton, Jeffrey P. Florida State University. Department of Earth, Ocean, and Atmospheric Science; Estados Unidos
description Peatlands contain a significant fraction of global soil carbon, but how these reservoirs will respond to the changing climate is still relatively unknown. A global picture of the variations in peat organic matter chemistry will aid our ability to gauge peatland soil response to climate. The goal of this research is to test the hypotheses that (a) peat carbohydrate content, an indicator of soil organic matter reactivity, will increase with latitude and decrease with mean annual temperatures, (b) while peat aromatic content, an indicator of recalcitrance, will vary inversely, and (c) elevation will have a similar effect to latitude. We used Fourier Transform Infrared Spectroscopy to examine variations in the organic matter functional groups of 1034 peat samples collected from 10 to 20, 30–40, and 60–70 cm depths at 165 individual sites across a latitudinal gradient of 79°N–65°S and from elevations of 0–4,773 m. Carbohydrate contents of high latitude peat were significantly greater than peat originating near the equator, while aromatic content showed the opposite trend. For peat from similar latitudes but different elevations, the carbohydrate content was greater and aromatic content was lower at higher elevations. Higher carbohydrate content at higher latitudes indicates a greater potential for mineralization, whereas the chemical composition of low latitude peat is consistent with their apparent relative stability in the face of warmer temperatures. The combination of low carbohydrates and high aromatics at warmer locations near the equator suggests the mineralization of high latitude peat until reaching recalcitrance under a new temperature regime.
publishDate 2022
dc.date.none.fl_str_mv 2022-02
2023-02-15T14:03:29Z
2023-02-15T14:03:29Z
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/20.500.12123/13982
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2021GB007057
1944-9224
https://doi.org/10.1029/2021GB007057
url http://hdl.handle.net/20.500.12123/13982
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2021GB007057
https://doi.org/10.1029/2021GB007057
identifier_str_mv 1944-9224
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv Global Biogeochemical Cycles 36 (2) : 1-17 (2022)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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