Dataset

Inorganic and black carbon hotspots constrain blue carbon mitigation services across tropical seagrass and temperate tidal marshes [supplementary info]

University of Tasmania, Australia
Gallagher, John Barry ; Prahalad, Vishnu ; Aalders, John
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=b42a720e-044e-4be4-ad2d-13d5799c1269&rft.title=Inorganic and black carbon hotspots constrain blue carbon mitigation services across tropical seagrass and temperate tidal marshes [supplementary info]&rft.identifier=https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=b42a720e-044e-4be4-ad2d-13d5799c1269&rft.publisher=Institute for Marine and Antarctic Studies, University of Tasmania&rft.description=Total organic carbon (TOC) sediment stocks as a CO2 mitigation service require exclusion of allochthonous black (BC) and particulate inorganic carbon corrected for water–atmospheric equilibrium (PICeq). For the first time, we address this bias for a temperate salt marsh and a coastal tropical seagrass in BC hotspots that represent two different blue carbon ecosystems of Malaysia and Australia. Seagrass TOC stocks were similar to the salt marshes with soil depths < 1 m (59.3 ± 11.3 and 74.9 ± 18.9 MgC ha-1, CI 95% respectively). Both ecosystems showed larger BC constraints than their pristine counterparts did. However, the seagrass meadows’ mitigation services were largely constrained by both higher BC/TOC and PICeq/TOC fractions (38.0% ± 6.6% and 43.4% ± 5.9%, CI 95%) and salt marshes around a third (22% ± 10.2% and 6.0% ± 3.1% CI 95%). The results provide useful data from underrepresented regions, and, reiterates the need to consider both BC and PIC for more reliable blue carbon mitigation assessments.Collecting sediments cores using a Russian peat corer. Analysis of carbon and black carbon using loss on ignition with local calibrations sets and directly through a element CHNS analyser (UTAS Central Science labs) and its stable isotopes, carbonate using loss on ignition, dry bulk density immediately extracting wet volumes and drying corrected for salt content (for details see the publication of the title of this data set)&rft.creator=Gallagher, John Barry &rft.creator=Prahalad, Vishnu &rft.creator=Aalders, John &rft.date=2021&rft.coverage=northlimit=-42.7274444775; southlimit=-43.0789573244; westlimit=147.628338307; eastLimit=147.952149332&rft.coverage=northlimit=5.43703253242; southlimit=5.33449045993; westlimit=100.222010687; eastLimit=100.373072699&rft_rights=Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/&rft_rights=The data described in this record are the intellectual property of the University of Tasmania through the Institute for Marine and Antarctic Studies.&rft_subject=biota&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=geoscientificInformation&rft_subject=blue carbon&rft_subject=salt marsh&rft_subject=seagrass&rft_subject=Tasmania&rft_subject=Malaysia&rft_subject=CARBONATE&rft_subject=EARTH SCIENCE&rft_subject=OCEANS&rft_subject=OCEAN CHEMISTRY&rft_subject=ORGANIC CARBON&rft_subject=CHARCOAL SEDIMENT&rft_subject=CLIMATE INDICATORS&rft_subject=PALEOCLIMATE INDICATORS&rft_subject=LAND RECORDS&rft_subject=FIRE HISTORY&rft_subject=Marine Geoscience&rft_subject=EARTH SCIENCES&rft_subject=GEOLOGY&rft_subject=Carbon Sequestration Science&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=SOIL SCIENCES&rft_subject=Phycology (incl. Marine Grasses)&rft_subject=BIOLOGICAL SCIENCES&rft_subject=PLANT BIOLOGY&rft.type=dataset&rft.language=English Access the data

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Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/

The data described in this record are the intellectual property of the University of Tasmania through the Institute for Marine and Antarctic Studies.

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Full description

Total organic carbon (TOC) sediment stocks as a CO2 mitigation service require exclusion of allochthonous black (BC) and particulate inorganic carbon corrected for water–atmospheric equilibrium (PICeq). For the first time, we address this bias for a temperate salt marsh and a coastal tropical seagrass in BC hotspots that represent two different blue carbon ecosystems of Malaysia and Australia. Seagrass TOC stocks were similar to the salt marshes with soil depths < 1 m (59.3 ± 11.3 and 74.9 ± 18.9 MgC ha-1, CI 95% respectively). Both ecosystems showed larger BC constraints than their pristine counterparts did. However, the seagrass meadows’ mitigation services were largely constrained by both higher BC/TOC and PICeq/TOC fractions (38.0% ± 6.6% and 43.4% ± 5.9%, CI 95%) and salt marshes around a third (22% ± 10.2% and 6.0% ± 3.1% CI 95%). The results provide useful data from underrepresented regions, and, reiterates the need to consider both BC and PIC for more reliable blue carbon mitigation assessments.

Lineage

Collecting sediments cores using a "Russian" peat corer. Analysis of carbon and black carbon using loss on ignition with local calibrations sets and directly through a element CHNS analyser (UTAS Central Science labs) and its stable isotopes, carbonate using loss on ignition, dry bulk density immediately extracting wet volumes and drying corrected for salt content (for details see the publication of the title of this data set)

Created: 2021-02-18

Data time period: 2018-09-01 to 2019-10-01

Click to explore relationships graph

147.952149332,-42.7274444775 147.952149332,-43.0789573244 147.628338307,-43.0789573244 147.628338307,-42.7274444775 147.952149332,-42.7274444775

147.7902438195,-42.90320090095

100.373072699,5.43703253242 100.373072699,5.33449045993 100.222010687,5.33449045993 100.222010687,5.43703253242 100.373072699,5.43703253242

100.297541693,5.385761496175

Other Information
DATA ACCESS - supplementary tables S1 & S2 - Penang and Tasmania sediment variables and locations [direct download]

uri : https://data.imas.utas.edu.au/attachments/b42a720e-044e-4be4-ad2d-13d5799c1269/Gallagher_etal_2021.pdf