Mangrove forest soil carbon (2018)

With the growing recognition that effective action on climate change will require a combination of emissions reductions and carbon sequestration, protecting, enhancing and restoring natural carbon sinks have become political priorities. Mangrove forests are considered some of the most carbon-dense ecosystems in the world with most of the carbon stored in the soil. In order for mangrove forests to be included in climate mitigation efforts, knowledge of the spatial distribution of mangrove soil carbon stocks are critical. Current global estimates do not capture enough of the finer scale variability that would be required to inform local decisions on siting protection and restoration projects. To close this knowledge gap, we have compiled a large georeferenced database of mangrove soil carbon measurements and developed a novel machine-learning based statistical model of the distribution of carbon density using spatially comprehensive data at a 30 m resolution. This model, which included a prior estimate of soil carbon from the global SoilGrids 250 m model, was able to capture 63% of the vertical and horizontal variability in soil organic carbon density (RMSE of 10.9 kg m−3). Of the local variables, total suspended sediment load and Landsat imagery were the most important variable explaining soil carbon density. Projecting this model across the global mangrove forest distribution for the year 2000 yielded an estimate of 6.4 Pg C for the top meter of soil with an 86–729 Mg C ha−1 range across all pixels. By utilizing remotely-sensed mangrove forest cover change data, loss of soil carbon due to mangrove habitat loss between 2000 and 2015 was 30–122 Tg C with >75% of this loss attributable to Indonesia, Malaysia and Myanmar. The resulting map products from this work are intended to serve nations seeking to include mangrove habitats in payment-for- ecosystem services projects and in designing effective mangrove conservation strategies.

Sanderman J, Hengl T, Fiske G, Solvik K, Adame MF, Benson L, et al. A global map of mangrove forest soil carbon at 30 m spatial resolution. Environ Res Lett. 2018;13: 055002. doi:10.1088/1748-9326/aabe1c

Simple

Date ( Publication )
2018-04-30
Status
Completed
Originator
Woods Hole Research Center, 149 Woods Hole Road, Falmouth, MA 02540, United States of America - Jonathan Sanderman ( )

Maintenance and update frequency
As needed
Keywords ( Theme )
  • Climate
Keywords ( Place )
  • World
Keywords ( Theme )
  • Carbon
Access constraints
License
Use constraints
otherRestictions
Other constraints
CC0 1.0; https://creativecommons.org/publicdomain/zero/1.0/
Spatial representation type
Grid
Metadata language
en
Character set
UTF8
Topic category
  • Environment
Begin date
2000-01-01
End date
2015-12-31
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Reference system identifier
WGS 1984
Number of dimensions
2
Dimension name
Row
Resolution
0.00025  degree
Dimension name
Column
Resolution
0.00025  degree
Cell geometry
Area
Transformation parameter availability
Yes
Distribution format
  • GeoTiff ( Not Set )

OnLine resource
supplementary information ( WWW:LINK-1.0-http--link )
OnLine resource
https://datacore.unepgrid.ch/geoserver/MapX_UNDP/wms?service=WMS&version=1.1.0&request=GetMap&layers=MapX_UNDP:mangroves_SOCS_0_100cm_30m&styles=&bbox=-180.0,-39.000809434,180.0,32.999190566&width=768&height=330&srs=EPSG:4326&format=image%2Fpng%3B%20mode%3D8bit ( OGC:WMS-1.3.0-http-get-map )
Hierarchy level
Dataset
Statement
Not set

Metadata

File identifier
4b2f0fab-fc1a-4231-998c-79b5b804915b XML
Metadata language
en
Character set
UTF8
Date stamp
2018-06-26T18:16:52
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0
Point of contact
UN Environment-GRID Geneva - Antonio Benvenuti ( )

 
 

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Keywords

Carbon Climate

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