http://lod.bco-dmo.org/id/dataset/827427 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 2020-10-21 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Ramped pyrolysis oxidation (RPO) temperature and carbon dioxide evolved values of soils collected in 2014-2015 within Plum Island Ecosystems LTER 2020-10-21 publication 2020-10-21 revision Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA) 2020-11-12 publication https://doi.org/10.26008/1912/bco-dmo.827427.1 Amanda Spivak Woods Hole Oceanographic Institution 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: Spivak, A. (2020) Ramped pyrolysis oxidation (RPO) temperature and carbon dioxide evolved values of soils collected in 2014-2015 within Plum Island Ecosystems LTER. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-10-21 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.827427.1 [access date] Ramped pyrolysis oxidation (RPO) temperature and carbon dioxide evolved values Dataset Description: &lt;p&gt;Bulk soil and elemental properties of marsh and infilled pond soils within Plum Island Ecosystems - LTER. Bulk soil properties of the soils are complemented with Fourier Transform Infrared Spectroscopy and ramped pyrolysis oxidation measurements of the soils. Data were collected during&amp;nbsp;2014-2015.&lt;/p&gt; Methods and Sampling: &lt;p&gt;Soil cores were collected from three sites within the Plum Island Ecosystems - Long Term Ecological Research (PIE-LTER) domain (MA, USA; 42.74° N, -70.85° W).&amp;nbsp;A core liner was fitted with a gasketed piston and placed on the sediment surface and pushed down into the marsh subsurface, ensuring that the soil column did not compact during collection.&lt;/p&gt; &lt;p&gt;The sites had similar elevations (1.41 - 1.51 m North American Vertical Datum of 1988 [NAVD88]) and salt marsh grass communities, dominated by &lt;em&gt;Spartina patens, S. alterniflora&lt;/em&gt;, and &lt;em&gt;Distichlis spicata&lt;/em&gt;. Permanently inundated ponds within each site had comparable depths (0.24 - 0.30 m) but varied in size (643 - 7,149 m²) and age (40 - 53 years) (Spivak et al., 2017; Spivak et al., 2018).&lt;/p&gt; &lt;p&gt;Soil cores were split lengthwise and sectioned into 1, 2, or 5 cm sections, with higher resolution in the top 30 cm. Soil water content (%) and bulk density (g/cm³) were determined gravimetrically after drying to constant mass (60°C). Samples were sieved (1 mm) to remove root material and homogenized with a Retsch Mixer Mill 200.&amp;nbsp;&lt;/p&gt; &lt;p&gt;The thermal reactivity of SOC was characterized through ramped pyrolysis oxidation (RPO). Homogenized soil samples (~6 mg) were exposed to a constant flow of ultra-high purity oxygen and helium gas mixture within a reactor, where temperatures ramped to 1000°C at a constant rate (20°C per min) (Rosenheim et al., 2008). The evolved carbon dioxide (CO2) was measured by a flow-through infrared gas analyzer and thermograms were constructed by plotting gas concentrations over time. Thermograms were normalized to the expected milligram of carbon evolved per gram of dry soil sample (mg C / g&amp;nbsp;soil). Samples were not acidified as inorganic carbon content was 0.02% - 0.04% of TOC. Analyses were conducted at the National Ocean Sciences Accelerator Mass Spectrometry Facility (NOSAMS, Woods Hole, MA). We further analyzed the δ13C and Fm composition of CO2 evolved from marsh and pond soils at one representative site. Refer to Hemmingway et al. (2017) for a description of the NOSAMS RPO set up.&lt;/p&gt; Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1233678 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1233678 completed Amanda Spivak Woods Hole Oceanographic Institution 706-542-5709 Marine Science Rm. 164 Department of Marine Science Athens GA 30602 United States aspivak@uga.edu pointOfContact asNeeded Dataset Version: 1 Unknown Site Core Location Depth_Into_Core Time Temperature CO2 infrared gas analyzer Retsch Mixer Mill 200 theme None, User defined site core id depth core time of day temperature of sample or a generic measurement (not in-situ water temp) carbon dioxide featureType BCO-DMO Standard Parameters Gas Analyzer Homogenizer instrument BCO-DMO Standard Instruments 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. Eutrophication Effects on Sediment Metabolism and Benthic Algal-bacterial Coupling: An Application of Novel Techniques in a LTER Estuary https://osprey.bco-dmo.org/project/529583 Eutrophication Effects on Sediment Metabolism and Benthic Algal-bacterial Coupling: An Application of Novel Techniques in a LTER Estuary <p><em>Extracted from the NSF award abstract:</em><br /> This project will address how rates of benthic microalgal production respond to eutrophication and geomorphological changes in human-impacted tidal creeks. Excess nutrient loading increases benthic algal biomass and likely stimulates production rates but the magnitude of nutrient and geomorphological effects on rates of production is unknown. Will changes in benthic algal productivity affect algal-bacterial coupling? Furthermore, how is algal-bacterial coupling affected by geomorphological changes, which may be exacerbated by excess nutrient loading but can also occur in pristine marshes?</p> <p>This project will take advantage of the infrastructure of the TIDE project, a long-term saltmarsh eutrophication experiment at the Plum Island Ecosystem - Long Term Ecological Research site in Northeastern Massachusetts. Specifically, the PIs will measure benthic metabolism and examine algal- bacterial coupling in fertilized and ambient nutrient tidal creeks in the first field season. The following field season, they will compare sediment metabolism and carbon dynamics on slumped tidal creek walls (i.e. areas where low marsh has collapsed into the tidal creek) to that on the bottom of tidal creeks. In both years, gross and net production will be determined using an innovative triple oxygen isotope technique and traditional dissolved oxygen and inorganic carbon flux measurements. Comparisons between these methods will be useful in informing studies of sediment metabolism. Lipid biomarkers will be used to characterize the sources of organic matter to creek sediments, and stable isotope analysis of bacterial specific biomarkers to identify the sources of organic carbon utilized by sediment bacteria. The biomarkers will reveal whether sediment bacteria use organic matter substrates, such as benthic microalgal carbon, selectively or in proportion to availability. Overall, results from the proposed study will provide important information about how sediment carbon dynamics in shallow tidal creeks respond to long term eutrophication. Furthermore, findings will enhance understanding of the role of tidal creeks in coastal biogeochemistry.</p> Benthic_PP_at_TIDE largerWorkCitation project eng; USA oceans -70.84720027 -70.83000142 42.73739991 42.741354 2014-07-01 2015-12-31 Plum Island Estuary, Rowley Massachusetts 0 BCO-DMO catalogue of parameters from Ramped pyrolysis oxidation (RPO) temperature and carbon dioxide evolved values of soils collected in 2014-2015 within Plum Island Ecosystems LTER 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/827445.rdf Name: Site Units: unitless Description: <p>Site number (1, 2, or 3); three high marsh sites were cored in PIE-LTER</p> http://lod.bco-dmo.org/id/dataset-parameter/827446.rdf Name: Core Units: unitless Description: <p>Core identifier (1 or 2); the two marsh cores were labeled 1 and 2</p> http://lod.bco-dmo.org/id/dataset-parameter/827447.rdf Name: Location Units: unitless Description: <p>Location within each site (MARSH or POND); at each of the three sites, two high marsh cores and one inundated pond core were collected</p> http://lod.bco-dmo.org/id/dataset-parameter/827448.rdf Name: Depth_Into_Core Units: centimeters (cm) Description: <p>Depth of horizon relative to surface of the marsh</p> http://lod.bco-dmo.org/id/dataset-parameter/827449.rdf Name: Time Units: unitless Description: <p>Time during ramped pyrolysis oxidation experiment; format: hh:mm:ss AM/PM</p> http://lod.bco-dmo.org/id/dataset-parameter/827450.rdf Name: Temperature Units: degrees Celsius Description: <p>Temperature of oven during ramped pyrolysis oxidation</p> http://lod.bco-dmo.org/id/dataset-parameter/827451.rdf Name: CO2 Units: per mil Description: <p>Carbon dioxide evolved</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 2963180 https://darchive.mblwhoilibrary.org/bitstream/1912/26376/1/dataset-827427_rpo-fast-ramps__v1.tsv download https://doi.org/10.26008/1912/bco-dmo.827427.1 download onLine dataset &lt;p&gt;Soil cores were collected from three sites within the Plum Island Ecosystems - Long Term Ecological Research (PIE-LTER) domain (MA, USA; 42.74° N, -70.85° W).&amp;nbsp;A core liner was fitted with a gasketed piston and placed on the sediment surface and pushed down into the marsh subsurface, ensuring that the soil column did not compact during collection.&lt;/p&gt; &lt;p&gt;The sites had similar elevations (1.41 - 1.51 m North American Vertical Datum of 1988 [NAVD88]) and salt marsh grass communities, dominated by &lt;em&gt;Spartina patens, S. alterniflora&lt;/em&gt;, and &lt;em&gt;Distichlis spicata&lt;/em&gt;. Permanently inundated ponds within each site had comparable depths (0.24 - 0.30 m) but varied in size (643 - 7,149 m²) and age (40 - 53 years) (Spivak et al., 2017; Spivak et al., 2018).&lt;/p&gt; &lt;p&gt;Soil cores were split lengthwise and sectioned into 1, 2, or 5 cm sections, with higher resolution in the top 30 cm. Soil water content (%) and bulk density (g/cm³) were determined gravimetrically after drying to constant mass (60°C). Samples were sieved (1 mm) to remove root material and homogenized with a Retsch Mixer Mill 200.&amp;nbsp;&lt;/p&gt; &lt;p&gt;The thermal reactivity of SOC was characterized through ramped pyrolysis oxidation (RPO). Homogenized soil samples (~6 mg) were exposed to a constant flow of ultra-high purity oxygen and helium gas mixture within a reactor, where temperatures ramped to 1000°C at a constant rate (20°C per min) (Rosenheim et al., 2008). The evolved carbon dioxide (CO2) was measured by a flow-through infrared gas analyzer and thermograms were constructed by plotting gas concentrations over time. Thermograms were normalized to the expected milligram of carbon evolved per gram of dry soil sample (mg C / g&amp;nbsp;soil). Samples were not acidified as inorganic carbon content was 0.02% - 0.04% of TOC. Analyses were conducted at the National Ocean Sciences Accelerator Mass Spectrometry Facility (NOSAMS, Woods Hole, MA). We further analyzed the δ13C and Fm composition of CO2 evolved from marsh and pond soils at one representative site. Refer to Hemmingway et al. (2017) for a description of the NOSAMS RPO set up.&lt;/p&gt; Specified by the Principal Investigator(s) &lt;p&gt;&lt;strong&gt;BCO-DMO Processing:&lt;/strong&gt;&lt;br /&gt; - replaced NaN with nd as the missing data identifier;&lt;br /&gt; - renamed fields to conform with BCO-DMO naming conventions (no spaces or special characters).&lt;/p&gt; Specified by the Principal Investigator(s) 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 infrared gas analyzer infrared gas analyzer PI Supplied Instrument Name: infrared gas analyzer PI Supplied Instrument Description:The evolved carbon dioxide (CO2) was measured by a flow-through infrared gas analyzer. Instrument Name: Gas Analyzer Instrument Short Name:Gas Analyzer Instrument Description: Gas Analyzers - Instruments for determining the qualitative and quantitative composition of gas mixtures. Retsch Mixer Mill 200 Retsch Mixer Mill 200 PI Supplied Instrument Name: Retsch Mixer Mill 200 PI Supplied Instrument Description:Retsch Mixer Mill 200 was used for homogenization. Instrument Name: Homogenizer Instrument Short Name:Homogenizer Instrument Description: A homogenizer is a piece of laboratory equipment used for the homogenization of various types of material, such as tissue, plant, food, soil, and many others.