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
Subjects
Biological Sciences |
CARBONATE |
CHARCOAL SEDIMENT |
CLIMATE INDICATORS |
Carbon Sequestration Science |
EARTH SCIENCE |
Earth Sciences |
Environmental Sciences |
FIRE HISTORY |
Geology |
LAND RECORDS |
Malaysia |
Marine Geoscience |
OCEAN CHEMISTRY |
OCEANS |
ORGANIC CARBON |
PALEOCLIMATE INDICATORS |
Plant Biology |
Phycology (Incl. Marine Grasses) |
Soil Sciences |
Tasmania |
biota |
blue carbon |
climatologyMeteorologyAtmosphere |
geoscientificInformation |
salt marsh |
seagrass |
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Other Information
DATA ACCESS - supplementary tables S1 & S2 - Penang and Tasmania sediment variables and locations [direct download]
Identifiers
- global : b42a720e-044e-4be4-ad2d-13d5799c1269
- URI : https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=b42a720e-044e-4be4-ad2d-13d5799c1269