Dataset.
Biogeochemical variables along the soil profile of three saltmarsh cores sampled in an estuary of the Gulf of Biscay
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/273128
Digital.CSIC. Repositorio Institucional del CSIC
- Mazarrasa, Inés
- García-Orellana, Jordi
- Puente, Araceli
- Juanes, José A.
This database contains data on different biogeochemical variables
measured in three soil cores (32-39 cm long) sampled in a saltmarsh
community of the Bay of Santander (Gulf of Biscay).
Soil cores were extracted in June 2019 within an area of 25 m2 in a
high marsh community located at the mouth of the Miera estuary,
within the Bay of Santander (43.452136°/ -3.748134°) by manually
hammering a PVC tube (60 cm L * 7 cm Ø). Compression was measured
during sampling of each of the cores. The cores were preserved
frozen until processing.
The longest core (BS2A1, 39 cm) was sliced every 1 cm, whereas the
other two cores (BSA2, BS2A3) were sliced every 2 cm for the top 20
cm and every 5 cm for the deeper layers. Each sediment slice was
measured for wet volume and dried at 60 ºC for a minimum of 72 h.
The dry weight of each slice was measured and used together with wet
volume to estimate sediment dry bulk density (DBD in g·cm-3).
Soil organic carbon content (Corg % DW) was measured every two or
three slices along the sediment depth profile of each core. Corg was
analyzed in the IHLab Bio laboratory of the IHCantabria using a TC
analyzer (Shimadzu TOC-L + SSM-5000A).
Grain size analysis was performed every other sample at the
Universitat de Barcelona with a Beckman Coulter LS GB500.
Organic Corg isotopic signature (δ13Corg) (in pre-acidified
subsamples) was measured using an Elemental Analyzer Flash IRMS
coupled with an Isotope Ratio Mass Spectrometry (DeltaV A) at the
Universidad de la Coruña.
The years of sediment accumulation were estimated from concentration
profiles of 210Pb, determined by alpha spectrometry through the
measurement of its granddaughter 210Po, assuming radioactive
equilibrium between both radionuclides. About 100–200 mg aliquots of
each sample were spiked with 209Po and microwave digested with a
mixture of concentrated HNO3 and HF. Boric acid was then added to
complex fluorides. The resulting solutions were evaporated and
diluted to 100 mL 1M HCl and Po isotopes were auto plated onto pure
silver disks. Polonium emissions were measured by alpha spectrometry
using PIPS detectors (CANBERRA, Mod.PD-450.18 A.M). Reagent blanks
were comparable to the detector backgrounds. Analyses of replicate
samples and reference materials were carried out systematically to
ensure the accuracy and the precision of the results. The supported
210Pb was estimated as the average 210Pb concentration of the
deepest layers once 210Pb reached constant values. Then, excess
210Pb (210Pbxs) concentrations were obtained by subtracting the
supported 210Pb from the total 210Pb. Age model of the sediment
depth profile records was obtained by modeling the 210Pbxs
concentration profiles along the accumulated mass at each site. The
model age of the sediment record was estimated using the Constant
Flux: Constant Sedimentation model (CF:CS, 76). In order to assess
the impact of the bridge construction on the biogeochemical
properties of the saltmarsh soil, we compare all biogeochemical
properties across two sections of the core, divided based on the
results of 210Pb dating: sediments accumulated before and after the
building of the bridge (i.e., before vs. after 1978).concentration
profiles of 210Pb and applying the Constant Flux: Constant
Sedimentation model (CF:CS, Krishnaswamy et al. 1971)., This database contains biogeochemical data on different biogeochemical variables measured in three soil cores sampled in a saltmarsh community of the Bay of Santander (Gulf of Biscay)., These data were compiled with the contribution of the LIFE Programme
of the European Union to the Project ADAPTA BLUES (ref. LIFE18 CCA/
ES/001160). This document reflects only the author’s view and the
Agency/ Commission is not responsible for any use that may be made
of the information it contains.Authors acknowledges the financial
support from the Government of Cantabria through the Fénix
Programme. The authors want to thank the support of the Generalitat
de Catalunya to MERS (2017 SGR-1588) and the Spanish Government for
the “Maria de Maeztu” program for Units of Excellence to ICTA (grant
no. CEX2019-000940-M)., -Infrastructure impact_Data.xlsx: the Database to be published. -Variables Database.xlsx, Peer reviewed
DOI: http://hdl.handle.net/10261/273128, https://doi.org/10.20350/digitalCSIC/14682
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/273128
HANDLE: http://hdl.handle.net/10261/273128, https://doi.org/10.20350/digitalCSIC/14682
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/273128
Ver en: http://hdl.handle.net/10261/273128, https://doi.org/10.20350/digitalCSIC/14682
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/273128
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Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/273128
Dataset. 2022
BIOGEOCHEMICAL VARIABLES ALONG THE SOIL PROFILE OF THREE SALTMARSH CORES SAMPLED IN AN ESTUARY OF THE GULF OF BISCAY
Digital.CSIC. Repositorio Institucional del CSIC
- Mazarrasa, Inés
- García-Orellana, Jordi
- Puente, Araceli
- Juanes, José A.
This database contains data on different biogeochemical variables
measured in three soil cores (32-39 cm long) sampled in a saltmarsh
community of the Bay of Santander (Gulf of Biscay).
Soil cores were extracted in June 2019 within an area of 25 m2 in a
high marsh community located at the mouth of the Miera estuary,
within the Bay of Santander (43.452136°/ -3.748134°) by manually
hammering a PVC tube (60 cm L * 7 cm Ø). Compression was measured
during sampling of each of the cores. The cores were preserved
frozen until processing.
The longest core (BS2A1, 39 cm) was sliced every 1 cm, whereas the
other two cores (BSA2, BS2A3) were sliced every 2 cm for the top 20
cm and every 5 cm for the deeper layers. Each sediment slice was
measured for wet volume and dried at 60 ºC for a minimum of 72 h.
The dry weight of each slice was measured and used together with wet
volume to estimate sediment dry bulk density (DBD in g·cm-3).
Soil organic carbon content (Corg % DW) was measured every two or
three slices along the sediment depth profile of each core. Corg was
analyzed in the IHLab Bio laboratory of the IHCantabria using a TC
analyzer (Shimadzu TOC-L + SSM-5000A).
Grain size analysis was performed every other sample at the
Universitat de Barcelona with a Beckman Coulter LS GB500.
Organic Corg isotopic signature (δ13Corg) (in pre-acidified
subsamples) was measured using an Elemental Analyzer Flash IRMS
coupled with an Isotope Ratio Mass Spectrometry (DeltaV A) at the
Universidad de la Coruña.
The years of sediment accumulation were estimated from concentration
profiles of 210Pb, determined by alpha spectrometry through the
measurement of its granddaughter 210Po, assuming radioactive
equilibrium between both radionuclides. About 100–200 mg aliquots of
each sample were spiked with 209Po and microwave digested with a
mixture of concentrated HNO3 and HF. Boric acid was then added to
complex fluorides. The resulting solutions were evaporated and
diluted to 100 mL 1M HCl and Po isotopes were auto plated onto pure
silver disks. Polonium emissions were measured by alpha spectrometry
using PIPS detectors (CANBERRA, Mod.PD-450.18 A.M). Reagent blanks
were comparable to the detector backgrounds. Analyses of replicate
samples and reference materials were carried out systematically to
ensure the accuracy and the precision of the results. The supported
210Pb was estimated as the average 210Pb concentration of the
deepest layers once 210Pb reached constant values. Then, excess
210Pb (210Pbxs) concentrations were obtained by subtracting the
supported 210Pb from the total 210Pb. Age model of the sediment
depth profile records was obtained by modeling the 210Pbxs
concentration profiles along the accumulated mass at each site. The
model age of the sediment record was estimated using the Constant
Flux: Constant Sedimentation model (CF:CS, 76). In order to assess
the impact of the bridge construction on the biogeochemical
properties of the saltmarsh soil, we compare all biogeochemical
properties across two sections of the core, divided based on the
results of 210Pb dating: sediments accumulated before and after the
building of the bridge (i.e., before vs. after 1978).concentration
profiles of 210Pb and applying the Constant Flux: Constant
Sedimentation model (CF:CS, Krishnaswamy et al. 1971)., This database contains biogeochemical data on different biogeochemical variables measured in three soil cores sampled in a saltmarsh community of the Bay of Santander (Gulf of Biscay)., These data were compiled with the contribution of the LIFE Programme
of the European Union to the Project ADAPTA BLUES (ref. LIFE18 CCA/
ES/001160). This document reflects only the author’s view and the
Agency/ Commission is not responsible for any use that may be made
of the information it contains.Authors acknowledges the financial
support from the Government of Cantabria through the Fénix
Programme. The authors want to thank the support of the Generalitat
de Catalunya to MERS (2017 SGR-1588) and the Spanish Government for
the “Maria de Maeztu” program for Units of Excellence to ICTA (grant
no. CEX2019-000940-M)., -Infrastructure impact_Data.xlsx: the Database to be published. -Variables Database.xlsx, Peer reviewed
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