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Climate and Anthropogenic PerturbationS of Land-Ocean Carbon tracKs (CAPS-LOCK2)

English title Climate and Anthropogenic PerturbationS of Land-Ocean Carbon tracKs (CAPS-LOCK2)
Applicant Eglinton Timothy
Number 163162
Funding scheme Project funding (Div. I-III)
Research institution Departement Erdwissenschaften ETH Zürich
Institution of higher education ETH Zurich - ETHZ
Main discipline Geochemistry
Start/End 01.01.2016 - 31.12.2018
Approved amount 650'000.00
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All Disciplines (2)

Discipline
Geochemistry
Other disciplines of Earth Sciences

Keywords (10)

Flüsse; Wassereinzugsgebiet; terrestrische Biosphäre; Radiokarbondatierung; biologische Marker; Klimawandel; Landumlegung; Böden; Anthropozän; Kohlenstoffkreislauf

Lay Summary (German)

Lead
Fluvialer Transport von Kohlenstoff aus der terrestrischen Biosphäre zu den Ozeanen stellt eine Schlüsselkomponente für den globalen Kohlenstoffkreislauf dar. Die anschliessende Einbettung und Speicherung dieses Kohlenstoffes in marinen Sedimenten bildet eine nachhaltige und langfristige Senke für atmosphärischen CO2. Diese Sedimente repräsentieren wiederum Archive vergangener Flora und Fauna, der kontinentalen Biosphäre und Perturbationen hervorgerufen durch Klima und Mensch. Dennoch bleiben grundlegende Fragen hinsichtlich natürlicher und anthropogener Faktoren, die sich auf Zeiträume und den Kohlenstofftransfer vom Land zum Ozean auswirken, offen.
Lay summary

Zielstellungen beinhalten: (1) die Einschätzung der Auswirkung von Temperatur und Hydrologie auf den Kohlenstoffexport in Einzugsgebieten von Flüssen (2) das Nachvollziehen von Kohlenstofftransportwegen innerhalb des Flusseinzugsgebietes und (3) Konsequenzen von Klima und anthropogenem Einfluss auf Eintrag und Zusammensetzung des terrestrischen organischen Kohlenstoffes, welcher durch Flüsse auf angrenzenden Kontinentalränder geliefert wird. Um diese Zielsetzungen zu erreichen, werden Radiokarbondatierungen und charakteristische organische Marker-Moleküle mit terrestrischen Ursprung eingesetzt. Diese Methoden werden an ausgewählten Flüssen angewandt, welche erhebliche Gradienten in Bezug auf physikalische und klimatische Bedingungen sowie dem Ausmass anthropogener Perturbation aufweisen. Transportdynamiken von verschiedenen biosphärischen Kohlenstoffkomponenten, welche mit unterschiedlichen Partikelphasen assoziiert sind, werden im Detail untersucht. Hinzukommend werden die gesammelten geochemischen und sedimentologischen Daten in eine eigens dafür geschaffene Datenbank integriert.

 

Ziel des Projekts ist es, ein fundamentales Verständnis natürlicher und anthropogener Einflüsse auf Quellen, Einträge und Transferzeiten von organischem Kohlenstoff zu erlangen, um die Rolle von Flüssen im globalen Kohlenstoffkreislauf zu beurteilen sowie zeitliche und klimatische Veränderungen einzuschätzen und zu prognostizieren.

Direct link to Lay Summary Last update: 16.09.2016

Responsible applicant and co-applicants

Employees

Publications

Publication
Temporal constraints on lateral organic matter transport along a coastal mud belt
Bao Rui, Zhao Meixun, McNichol Ann, Galy Valier, McIntyre Cameron, Haghipour Negar, Eglinton Timothy I. (2019), Temporal constraints on lateral organic matter transport along a coastal mud belt, in Organic Geochemistry, 128, 86-93.
Relationships between grain size and organic carbon 14C heterogeneity in continental margin sediments
Bao Rui, Blattmann Thomas M., McIntyre Cameron, Zhao Meixun, Eglinton Timothy I. (2019), Relationships between grain size and organic carbon 14C heterogeneity in continental margin sediments, in Earth and Planetary Science Letters, 505, 76-85.
Temporal deconvolution of vascular plant-derived fatty acids exported from terrestrial watersheds
Vonk Jorien E., Drenzek Nicholas J., Hughen Konrad A., Stanley Rachel H.R., McIntyre Cameron, Montluçon Daniel B., Giosan Liviu, Southon John R., Santos Guaciara M., Druffel Ellen R.M., Andersson August A., Sköld Martin, Eglinton Timothy I. (2019), Temporal deconvolution of vascular plant-derived fatty acids exported from terrestrial watersheds, in Geochimica et Cosmochimica Acta, 244, 502-521.
Millennial soil retention of terrestrial organic matter deposited in the Bengal Fan
French Katherine L., Hein Christopher J., Haghipour Negar, Wacker Lukas, Kudrass Hermann R., Eglinton Timothy I., Galy Valier (2018), Millennial soil retention of terrestrial organic matter deposited in the Bengal Fan, in Scientific Reports, 8(1), 11997-11997.
Tectonically-triggered sediment and carbon export to the Hadal zone
Bao Rui, Strasser Michael, McNichol Ann P., Haghipour Negar, McIntyre Cameron, Wefer Gerold, Eglinton Timothy I. (2018), Tectonically-triggered sediment and carbon export to the Hadal zone, in Nature Communications, 9(1), 121-121.
Impacts of Natural and Human-Induced Hydrological Variability on Particulate Organic Carbon Dynamics in the Yellow River
Yu Meng, Eglinton Timothy I., Haghipour Negar, Montluçon Daniel B., Wacker Lukas, Hou Pengfei, Zhang Hailong, Zhao Meixun (2018), Impacts of Natural and Human-Induced Hydrological Variability on Particulate Organic Carbon Dynamics in the Yellow River, in Environmental Science & Technology, 53(3), 1119-1129.
Influence of Hydrodynamic Processes on the Fate of Sedimentary Organic Matter on Continental Margins
Bao Rui, van der Voort Tessa S., Zhao Meixun, Guo Xinyu, Montluçon Daniel B., McIntyre Cameron, Eglinton Timothy I. (2018), Influence of Hydrodynamic Processes on the Fate of Sedimentary Organic Matter on Continental Margins, in Global Biogeochemical Cycles, 32(9), 1420-1432.
Organic Carbon Aging During Across-Shelf Transport
Bao Rui, Uchida Masao, Zhao Meixun, Haghipour Negar, Montlucon Daniel, McNichol Ann, Wacker Lukas, Hayes John M., Eglinton Timothy I. (2018), Organic Carbon Aging During Across-Shelf Transport, in Geophysical Research Letters, 8425-8434.
Constraining Instantaneous Fluxes and Integrated Compositions of Fluvially Discharged Organic Matter
Freymond Chantal V., Lupker Maarten, Peterse Francien, Haghipour Negar, Wacker Lukas, Filip Florin, Giosan Liviu, Eglinton Timothy I. (2018), Constraining Instantaneous Fluxes and Integrated Compositions of Fluvially Discharged Organic Matter, in Geochemistry, Geophysics, Geosystems, 19(8), 2453-2462.
Global-scale evidence for the refractory nature of riverine black carbon
Coppola Alysha I., Wiedemeier Daniel B., Galy Valier, Haghipour Negar, Hanke Ulrich M., Nascimento Gabriela S., Usman Muhammed, Blattmann Thomas M., Reisser Moritz, Freymond Chantal V., Zhao Meixun, Voss Britta, Wacker Lukas, Schefuß Enno, Peucker-Ehrenbrink Bernhard, Abiven Samuel, Schmidt Michael W. I., Eglinton Timothy I. (2018), Global-scale evidence for the refractory nature of riverine black carbon, in Nature Geoscience, 11(8), 584-588.
Reconciling drainage and receiving basin signatures of the Godavari River system
Usman Muhammed Ojoshogu, Kirkels Frédérique Marie Sophie Anne, Zwart Huub Michel, Basu Sayak, Ponton Camilo, Blattmann Thomas Michael, Ploetze Michael, Haghipour Negar, McIntyre Cameron, Peterse Francien, Lupker Maarten, Giosan Liviu, Eglinton Timothy Ian (2018), Reconciling drainage and receiving basin signatures of the Godavari River system, in Biogeosciences, 15(11), 3357-3375.
Deconvolving the Fate of Carbon in Coastal Sediments
Van der Voort Tessa S., Mannu Utsav, Blattmann Thomas M., Bao Rui, Zhao Meixun, Eglinton Timothy I. (2018), Deconvolving the Fate of Carbon in Coastal Sediments, in Geophysical Research Letters, 45(9), 4134-4142.
Temporal variability in composition and fluxes of Yellow River particulate organic matterCompostion and fluxes of Yellow River POC
Tao Shuqin, Eglinton Timothy I., Zhang Liang, Yi Zhiwei, Montluçon Daniel B., McIntyre Cameron, Yu Meng, Zhao Meixun (2018), Temporal variability in composition and fluxes of Yellow River particulate organic matterCompostion and fluxes of Yellow River POC, in Limnology and Oceanography, 63(S1), S119-S141.
Evolution of biomolecular loadings along a major river system
Freymond Chantal V., Kündig Nicole, Stark Courcelle, Peterse Francien, Buggle Björn, Lupker Maarten, Plötze Michael, Blattmann Thomas M., Filip Florin, Giosan Liviu, Eglinton Timothy I. (2018), Evolution of biomolecular loadings along a major river system, in Geochimica et Cosmochimica Acta, 223, 389-404.
Relevance of carbon stocks of marine sediments for national greenhouse gas inventories of maritime nations
Avelar Silvania, van der Voort Tessa S., Eglinton Timothy I. (2017), Relevance of carbon stocks of marine sediments for national greenhouse gas inventories of maritime nations, in Carbon Balance and Management, 12(1), 10-10.
Short communication: Massive erosion in monsoonal central India linked to late Holocene land cover degradation
Giosan Liviu, Ponton Camilo, Usman Muhammed, Blusztajn Jerzy, Fuller Dorian Q., Galy Valier, Haghipour Negar, Johnson Joel E., McIntyre Cameron, Wacker Lukas, Eglinton Timothy I. (2017), Short communication: Massive erosion in monsoonal central India linked to late Holocene land cover degradation, in Earth Surface Dynamics, 5(4), 781-789.
Branched GDGT signals in fluvial sediments of the Danube River basin: Method comparison and longitudinal evolution
Freymond Chantal V., Peterse Francien, Fischer Lorena V., Filip Florin, Giosan Liviu, Eglinton Timothy I. (2017), Branched GDGT signals in fluvial sediments of the Danube River basin: Method comparison and longitudinal evolution, in Organic Geochemistry, 103, 88-96.

Collaboration

Group / person Country
Types of collaboration
Woods Hole Oceanographic Institution United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Ocean University China China (Asia)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
- Exchange of personnel
University of Zurich Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
- Exchange of personnel
WSL Birmensdorf Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
- Exchange of personnel
GFZ Potsdam Germany (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
- Exchange of personnel

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
Goldschmidt Conference Talk given at a conference Organic carbon export from the Mackenzie basin: Insights from observations spanning 30 years 13.08.2018 Boston, United States of America Schwab Melissa;
Gordon Research Seminar on Organic Geochemistry Individual talk Large-scale changes in organic matter export from the Indian subcontinental India linked to Holocene climate variability 28.07.2018 Holderness, New Hampshire, United States of America Usman Muhammed Ojoshogu;
International Symposium on Surface Earth System Science Talk given at a conference Hysteresis in the Carbon Cycle 26.03.2018 Tianjin Univ., China Eglinton Timothy;
International Meeting on Organic Geochemistry 2017 Poster Large-scale, climate and anthropogenically-driven translocation of terrestrial organic carbon from the Godavari River basin during the Late Holocene 18.09.2017 Florence, Italy Usman Muhammed Ojoshogu;
Goldschmidt Conference Talk given at a conference Regional- to global-scale perspectives on organic carbon burial in continental margin sediments 14.08.2017 Paris, France Eglinton Timothy;
C-Cascades mini-conference Individual talk Chemical signatures of the land-ocean continuum 24.01.2017 Zurich, Switzerland Eglinton Timothy;
Seminar Individual talk Radiocarbon Perspectives onCarbon Cycle Processes 10.01.2017 GFZ Potsdam, Germany Eglinton Timothy;
Special seminar Individual talk Radiocarbon Perspectives on Carbon Cycle Processes 27.10.2016 Chinese Academy of Sciences, Beijing, China Eglinton Timothy;
Goldschmidt conference Talk given at a conference Molecular isotopic insights into organic matter-mineral associations and their impact on carbon cycling within river drainage basins 26.06.2016 Yokohama, Japan Eglinton Timothy;


Associated projects

Number Title Start Funding scheme
140850 Climate and Anthropogenic PerturbationS of Land-Ocean Carbon tracKs (CAPS-LOCK) 01.01.2013 Project funding (Div. I-III)
140850 Climate and Anthropogenic PerturbationS of Land-Ocean Carbon tracKs (CAPS-LOCK) 01.01.2013 Project funding (Div. I-III)
184865 Climate and Anthropogenetic PertubationS of Land-Ocean Carbon tracKs (CAPS-LOCK3) 01.04.2019 Project funding (Div. I-III)
143023 Molecular and radiocarbon sentinels of soil organic matter vulnerability 01.01.2013 NRP 68 Sustainable Use of Soil as a Resource
170761 Enabling new frontiers in radiocarbon and geochemical analysis 01.09.2017 R'EQUIP

Abstract

The export of carbon from the terrestrial biosphere via rivers to the oceans comprises an important component of the global carbon cycle, with burial of this carbon representing a long-term sink for atmospheric CO2. Production, fluvial export and sequestration of terrestrial organic carbon (OC) in marine sediments also provides rich archives of past biospheres, continental environments and climates. Despite the importance of river basins for our understanding of present and past carbon cycle processes, there remain fundamental gaps in our understanding of carbon transfer from biological source to sedimentary sink. For example, the extent to which biospheric organic carbon discharged from rivers reflect ecosystem- or drainage basin-wide processes remains unclear. Moreover, the storage and transmission times of biospheric carbon within river basins are poorly constrained, and the factors that control the residence time of terrestrial biospheric carbon are even less well known. Rivers and human civilizations have been closely intertwined in recent millennia, rendering it challenging to disentangle natural from anthropogenic influences on processes, yet this is a vital task in order understand past and future changes in river systems. As part of the initial CAPS-LOCK project, we hypothesized that timescales of biospheric carbon storage in terrestrial drainage basins vary as a function of climate and anthropogenic activity. We set out to further investigate these processes through investigation of modern river systems and via reconstruction of past dynamics of fluvial OC export from river-proximal sediment records. These investigations have shed important new light on underlying processes, lending support for our hypothesis, while also raising intriguing new questions. Specifically, temperature and hydrology are emerging as primary controls on biospheric C storage times, with different types of biospheric carbon appearing more sensitive to one control or the other. These findings have important implications for our understanding of carbon cycle processes, as well as for paleoclimate, and paleoenvironmental reconstruction based on signals emanating from river basins that are preserved in aquatic sediments. In this next phase of the CAPS-LOCK project, we seek to answers the following questions: (1) To what extent does temperature versus run-off (hydrology) [and versus other factors] exert the dominant control on biospheric C export from river basins? (2) What is the importance of different OM transport pathways through river basins and how do they vary with drainage basin properties? (3) What are the consequences of climate and anthropogenic forcing on fluxes, composition and fate of terrestrial OC delivered by rivers to adjacent continental margins? We plan to address these questions through execution of 3 work packages that will explore (A) controls on biospheric C residence times in a broader range of river basins (B) assessment of transport pathways and dynamics for specific biospheric carbon components, and (C) global perspectives on terrestrial OC discharge from river systems. These activities will include detailed molecular isotopic investigations of biospheric OC associated with different particle phases, and utilization of a nascent comprehensive database on geochemical and sedimentological characteristics of river-proximal continental margin surface sediments. Collectively, we aim to develop predictive capabilities for assessing the characteristics and age of organic carbon that is exported from the terrestrial biosphere as a function of river drainage basin properties.
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