http://lod.bco-dmo.org/id/dataset/938382
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2024-09-24
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Sulfur speciation of sediment and biomass from the Carpinteria Salt March sampled in 2020 and 2021
2024-09-30
publication
2024-09-30
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2024-09-30
publication
https://doi.org/10.26008/1912/bco-dmo.938382.1
Morgan Reed Raven
University of California-Santa Barbara
principalInvestigator
Maya Gomes
Johns Hopkins University
principalInvestigator
Samuel Webb
Stanford University
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Capece, L. R., Raven, M. R., Phillips, A., Webb, S., Gomes, M. (2024) Sulfur speciation of sediment and biomass from the Carpinteria Salt March sampled in 2020 and 2021. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-09-30 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.938382.1 [access date]
Sulfur Speciation in Sediments and Biomass 2020 and 2021 Dataset Description: Methods and Sampling: <p>We collected six sediment cores from three habitat types at Carpinteria Salt Marsh Reserve (34.41336°N, 119.84365°W) in July 2020. One core was used to establish dry bulk density, while the other was reserved for geochemical measurements. Both cores were kept at -20°C until analysis could be carried out. We provide data on the speciation of sulfur in acid hydrolysis resistant organic matter and biomass samples.</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
Funding provided by NSF Division of Earth Sciences (NSF EAR) Award Number: EAR-2053163 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2053163
completed
Morgan Reed Raven
University of California-Santa Barbara
626-644-0273
Santa Barbara
CA
93106-2050
US
raven@ucsb.edu
pointOfContact
Maya Gomes
Johns Hopkins University
mgomes@jhu.edu
pointOfContact
Samuel Webb
Stanford University
samwebb@slac.stanford.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
collection_date
latitude
longitude
type
location
habitat
depth
disulfide
monosulfide
aromatic
sulfoxide
sulfonate
sulfate_ester
chi_sq
reduced
oxidized
theme
None, User defined
date
latitude
longitude
sample description
site
depth core
Sulfur (S)
number
featureType
BCO-DMO Standard Parameters
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Carbon Storage in Mangrove Ecosystems via Abiotic Sulfurization
http://ravennoiselab.com
Carbon Storage in Mangrove Ecosystems via Abiotic Sulfurization
<p><em>NSF Award Abstract:</em><br />
Mangrove forest sediments are important hotspots of organic carbon preservation, and they have the potential to sequester substantial amounts of atmospheric CO2. Currently, however, is it not fully understood why these environments are able to bury so much organic carbon, or how they will respond to future changes in sea level, land use, and climate. This project will investigate a mechanism that may help explain this carbon burial: organic matter sulfurization, the transformation and effective ‘pickling’ of sedimentary organic matter by sulfide. Its central aim is to understand what controls the extent of sulfurization in mangrove sediments, and to estimate the contribution of organic matter sulfurization to sediment carbon storage in different parts of the environment. By providing some of the first constraints on how, when, and where organic matter sulfurization happens in mangroves, the results of this work will guide decisionmakers managing coastal watersheds and carbon stocks in the face of land use, climate and sea level change. As part of this work, four undergraduate students and one PhD student at UC Santa Barbara will gain field and research experience. And, in collaboration with local groups associated with the field site, the team will produce a season of ‘Ocean Solutions’ podcast episodes related to conservation and human impacts of Caribbean mangroves.</p>
<p>The overarching goal of this project is to understand how microbial sulfur cycling affects organic matter preservation in vegetated coastal sediments, which have substantial leverage to impact the global carbon cycle on decadal to millennial timescales. It specifically investigates organic matter sulfurization, which can transform fresh, easily respired organic matter into recalcitrant, polymerized carbon stocks with long-term preservation potential. Although organic matter sulfurization is known to occur in mangrove sediments, the scale of its impact is essentially unknown. A pair of field expeditions will be conducted at a mangrove forest on the southwestern coast of Florida. In the first field season, geochemical profiles will be used to quantify organic matter sulfurization in sediments and its relationships with carbon storage, iron mineralogy, and the characteristics of sedimentary organic matter inputs. In the second field season, cyclic voltammetry will be used to target redox dynamics at the millimeter scale. Laboratory experiments will be conducted to test the susceptibility of various local organic matter sources to sulfurization and characterize their sulfurized forms. Throughout, the project applies a holistic approach to sedimentary organic matter by characterizing the dissolved, lipid, protein/carbohydrate, and proto-kerogen pools with isotopic and spectroscopic techniques. This work will yield a first quantitative, mechanistic framework for predicting the extent of organic matter sulfurization in coastal vegetated habitats and its likely response to changes in ecology, land use, or sea level.</p>
<p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p>
Mangroves OS
largerWorkCitation
project
eng; USA
oceans
-119.84365
-119.53802
34.40052
34.41336
2020-07-01
2021-01-16
Floridian and Caribbean mangroves; Californian salt mashes
0
BCO-DMO catalogue of parameters from Sulfur speciation of sediment and biomass from the Carpinteria Salt March sampled in 2020 and 2021
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/938992.rdf
Name: collection_date
Units: unitless
Description: <p>sample collection date</p>
http://lod.bco-dmo.org/id/dataset-parameter/938993.rdf
Name: latitude
Units: decimal degrees
Description: <p>latitude of sample location, south is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/938994.rdf
Name: longitude
Units: decimal degrees
Description: <p>longitude of sample location, west is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/938995.rdf
Name: type
Units: unitless
Description: <p>sediment or type of biomass</p>
http://lod.bco-dmo.org/id/dataset-parameter/938996.rdf
Name: location
Units: unitless
Description: <p>where sample was taken</p>
http://lod.bco-dmo.org/id/dataset-parameter/938997.rdf
Name: habitat
Units: unitless
Description: <p>type of habitat where sample was taken</p>
http://lod.bco-dmo.org/id/dataset-parameter/938998.rdf
Name: depth
Units: cm
Description: <p>core depth of sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/938999.rdf
Name: disulfide
Units: fraction as a decimal
Description: <p>relative abundance of organic disulfides in samples determined following XAS</p>
http://lod.bco-dmo.org/id/dataset-parameter/939000.rdf
Name: monosulfide
Units: fraction as a decimal
Description: <p>relative abundance of organic monosulfides in samples determined following XAS</p>
http://lod.bco-dmo.org/id/dataset-parameter/939001.rdf
Name: aromatic
Units: fraction as a decimal
Description: <p>relative abundance of aromatics in samples determined following XAS</p>
http://lod.bco-dmo.org/id/dataset-parameter/939002.rdf
Name: sulfoxide
Units: fraction as a decimal
Description: <p>relative abundance of sulfoxides in samples determined following XAS</p>
http://lod.bco-dmo.org/id/dataset-parameter/939003.rdf
Name: sulfonate
Units: fraction as a decimal
Description: <p>relative abundance of sulfonates in samples determined following XAS</p>
http://lod.bco-dmo.org/id/dataset-parameter/939004.rdf
Name: sulfate_ester
Units: fraction as a decimal
Description: <p>relative abundance of sulfate esters in samples determined following XAS</p>
http://lod.bco-dmo.org/id/dataset-parameter/939005.rdf
Name: chi_sq
Units: unitless
Description: <p>results of statistical analyses carried out in Sixpack that detail the goodness of the fit of standard spectra to sample spectra determined following XAS</p>
http://lod.bco-dmo.org/id/dataset-parameter/939006.rdf
Name: reduced
Units: fraction as a decimal
Description: <p>sum of reduced species</p>
http://lod.bco-dmo.org/id/dataset-parameter/939007.rdf
Name: oxidized
Units: fraction as a decimal
Description: <p>sum of oxidized species</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
4897
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/b9199393-b041-49a1-b7c6-b0611e715688/content
download
https://doi.org/10.26008/1912/bco-dmo.938382.1
download
onLine
dataset
<p>We collected six sediment cores from three habitat types at Carpinteria Salt Marsh Reserve (34.41336°N, 119.84365°W) in July 2020. One core was used to establish dry bulk density, while the other was reserved for geochemical measurements. Both cores were kept at -20°C until analysis could be carried out. We provide data on the speciation of sulfur in acid hydrolysis resistant organic matter and biomass samples.</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
Specified by the Principal Investigator(s)
<p dir="ltr">To isolate major carbon and sulfur pools, a ~1 g aliquot of the freeze dried sample from each sediment interval was subjected to two sequential microwave extractions (MARS-6, CEM, 70°C for 15 minutes) using a 9:1 dichloromethane: methanol solution to isolate lipids and elemental S. Solvent-extracted solids were rinsed with 0.7N NaCl solution, ultra-pure water, freeze dried and then acid fumigated to remove carbonates for 12 hrs with a 6N HCl solution. A 500-mg subsample of the same microwave-extracted solid residue was then subjected to a strong acid hydrolysis (6N HCl, 60°C, 2 hrs) to extract acid-volatile sulfur (AVS, operationally defined as iron monosulfides) following Canfield et al. 1986 and Raven et al. 2019b. The remaining solid residue underwent a chromium (II) chloride extraction at 60°C for 2 hours to isolate chromium reducible sulfur (CRS, operationally defined as pyrite) following Canfield et al. 1986.&nbsp; The leftover solid residue following the CRS extraction contains highly hydrolysis-resistant OM that we refer to as protokerogen (Burdige 2007; Raven et al. 2019b).</p>
<p dir="ltr">Subsamples of primary producer biomass (n=9) from CSMR (Ulva spp., Juamea carnosa, and Salicornia pacifica) underwent two separate chemical extractions in order to isolate important carbon and sulfur pools for x-ray absorbance spectroscopy (XAS). Briefly, ~1 g of each rinsed and freeze-dried biomass type underwent an acid hydrolysis with 1N hydrochloric acid for 2 hours at room temperature to ensure the removal of sulfate from the biomass.</p>
<p>The oxidation state and bonding environment of organic sulfur (OS) in both strongly acid-hydrolyzed (post-CRS extraction, which we refer to as protokerogen) sediments and mild acid-hydrolyzed (1N acid hydrolysis discussed above) whole biomass samples were characterized using synchrotron x-ray absorption spectroscopy (XAS). Sulfur K-edge XAS spectra were obtained at the Stanford Synchrotron Radiation Lightsource (SSRL) on beam line 14–3 using a spot size of 0.5 mm2 and a Si(111) (Φ = 90) double crystal monochromator calibrated to the thiol pre-edge peak of thiosulfate at 2472.02 eV. For analysis, samples were adhered onto Saint Gobain M60 S-free polyester tape and covered with 5 µm SPEX 3520 polypropylene XRF film. Spectra were averaged and normalized in the SIXPACK (Webb 2005) software package using a K-edge E0 of 2473 and pre-edge and post-edge linear normalization ranges of -20 to -7 and 35 to 70 eV, respectively. The relative abundance (%) of individual sulfur species were determined in sediments and biomass samples using least squares fitting and a set of OS standards (Raven et al. 2021a). The relative abundances of different sulfur species were then used to determine the percentage of reduced (disulfide, monosulfide, aromatic) and oxidized (sulfoxide, sulfone/sulfonate, sulfate ester) sulfur in slightly acid hydrolyzed biomass and strongly acidified sediment.</p>
Specified by the Principal Investigator(s)
* Adjusted parameter names to comply with database requirements
Specified by BCO-DMO Data Managers
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact