Biomarker and carbon isotope constraints (d13C, d14C) on sources and cycling of particulate organic matter discharged by large Siberian rivers draining permafrost areas
Circumpolar permafrost soils store about half of the global soil organic carbon pool. Currently most of this organic matter remains frozen and therefore does not take part in the active carbon cycle, making permafrost soils a globally important carbon sink. As a result of Arctic climate warming the...
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Format: | Doctoral or Postdoctoral Thesis |
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Universität Bremen
2014
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Online Access: | https://media.suub.uni-bremen.de/handle/elib/824 https://nbn-resolving.org/urn:nbn:de:gbv:46-00104377-18 |
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ftsubbremen:oai:media.suub.uni-bremen.de:Publications/elib/824 2023-05-15T14:46:40+02:00 Biomarker and carbon isotope constraints (d13C, d14C) on sources and cycling of particulate organic matter discharged by large Siberian rivers draining permafrost areas Biomarker and carbon isotope constraints (d13C, d14C) on sources and cycling of particulate organic matter Winterfeld, Maria Mollenhauer, Gesine Hubberten, Hans-Wolfgang 2014-11-04 application/pdf https://media.suub.uni-bremen.de/handle/elib/824 https://nbn-resolving.org/urn:nbn:de:gbv:46-00104377-18 eng eng Universität Bremen FB5 Geowissenschaften https://media.suub.uni-bremen.de/handle/elib/824 urn:nbn:de:gbv:46-00104377-18 info:eu-repo/semantics/openAccess Bitte wählen Sie eine Lizenz aus: (Unsere Empfehlung: CC-BY) CC-BY permafrost Siberia particulate organic matter biomarker carbon isotopes 550 550 Earth sciences and geology ddc:550 Dissertation doctoralThesis 2014 ftsubbremen 2022-11-09T07:09:27Z Circumpolar permafrost soils store about half of the global soil organic carbon pool. Currently most of this organic matter remains frozen and therefore does not take part in the active carbon cycle, making permafrost soils a globally important carbon sink. As a result of Arctic climate warming the thaw-induced release of greenhouse gases to the atmosphere possibly creates a positive climate feedback. The great arctic rivers play an important role in global biogeochemical cycles by connecting the large permafrost carbon pool of their hinterlands with the arctic shelf seas and the Arctic Ocean. The first part of this thesis deals with the modern Lena River system using biomarkers to detect and characterize organic matter sources. The second part investigates past permafrost dynamics and the possible permafrost/wetland climate feedback during the last deglaciation and Early Holocene using compound-specific 14C dating of sediments discharged by the Amur River to the Okhotsk Sea. Doctoral or Postdoctoral Thesis Arctic Arctic Ocean lena river okhotsk sea permafrost Siberia Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) Arctic Arctic Ocean Okhotsk |
institution |
Open Polar |
collection |
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
op_collection_id |
ftsubbremen |
language |
English |
topic |
permafrost Siberia particulate organic matter biomarker carbon isotopes 550 550 Earth sciences and geology ddc:550 |
spellingShingle |
permafrost Siberia particulate organic matter biomarker carbon isotopes 550 550 Earth sciences and geology ddc:550 Winterfeld, Maria Biomarker and carbon isotope constraints (d13C, d14C) on sources and cycling of particulate organic matter discharged by large Siberian rivers draining permafrost areas |
topic_facet |
permafrost Siberia particulate organic matter biomarker carbon isotopes 550 550 Earth sciences and geology ddc:550 |
description |
Circumpolar permafrost soils store about half of the global soil organic carbon pool. Currently most of this organic matter remains frozen and therefore does not take part in the active carbon cycle, making permafrost soils a globally important carbon sink. As a result of Arctic climate warming the thaw-induced release of greenhouse gases to the atmosphere possibly creates a positive climate feedback. The great arctic rivers play an important role in global biogeochemical cycles by connecting the large permafrost carbon pool of their hinterlands with the arctic shelf seas and the Arctic Ocean. The first part of this thesis deals with the modern Lena River system using biomarkers to detect and characterize organic matter sources. The second part investigates past permafrost dynamics and the possible permafrost/wetland climate feedback during the last deglaciation and Early Holocene using compound-specific 14C dating of sediments discharged by the Amur River to the Okhotsk Sea. |
author2 |
Mollenhauer, Gesine Hubberten, Hans-Wolfgang |
format |
Doctoral or Postdoctoral Thesis |
author |
Winterfeld, Maria |
author_facet |
Winterfeld, Maria |
author_sort |
Winterfeld, Maria |
title |
Biomarker and carbon isotope constraints (d13C, d14C) on sources and cycling of particulate organic matter discharged by large Siberian rivers draining permafrost areas |
title_short |
Biomarker and carbon isotope constraints (d13C, d14C) on sources and cycling of particulate organic matter discharged by large Siberian rivers draining permafrost areas |
title_full |
Biomarker and carbon isotope constraints (d13C, d14C) on sources and cycling of particulate organic matter discharged by large Siberian rivers draining permafrost areas |
title_fullStr |
Biomarker and carbon isotope constraints (d13C, d14C) on sources and cycling of particulate organic matter discharged by large Siberian rivers draining permafrost areas |
title_full_unstemmed |
Biomarker and carbon isotope constraints (d13C, d14C) on sources and cycling of particulate organic matter discharged by large Siberian rivers draining permafrost areas |
title_sort |
biomarker and carbon isotope constraints (d13c, d14c) on sources and cycling of particulate organic matter discharged by large siberian rivers draining permafrost areas |
publisher |
Universität Bremen |
publishDate |
2014 |
url |
https://media.suub.uni-bremen.de/handle/elib/824 https://nbn-resolving.org/urn:nbn:de:gbv:46-00104377-18 |
geographic |
Arctic Arctic Ocean Okhotsk |
geographic_facet |
Arctic Arctic Ocean Okhotsk |
genre |
Arctic Arctic Ocean lena river okhotsk sea permafrost Siberia |
genre_facet |
Arctic Arctic Ocean lena river okhotsk sea permafrost Siberia |
op_relation |
https://media.suub.uni-bremen.de/handle/elib/824 urn:nbn:de:gbv:46-00104377-18 |
op_rights |
info:eu-repo/semantics/openAccess Bitte wählen Sie eine Lizenz aus: (Unsere Empfehlung: CC-BY) |
op_rightsnorm |
CC-BY |
_version_ |
1766317870078230528 |