{
    "tag": 17870,
    "title": "Collection, analysis, and age-dating of sediment cores from mangrove and salt marsh ecosystems in Tampa Bay, Florida, 2015",
    "pubdate": "20210630",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P9QB17H2",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/SB_data_release\/DR_P9QB17H2\/Metadata_TampaBay_Cores.faq.html",
    "format": null,
    "email": null,
    "descript": "Coastal wetlands in Tampa Bay, Florida, are important ecosystems that deliver a variety of ecosystem services. Key to ecosystem functioning is wetland response to sea-level rise through accumulation of mineral and organic sediment. The organic sediment within coastal wetlands is composed of carbon sequestered over the time scale of the wetland\u2019s existence. This study was conducted to provide information on soil accretion and carbon storage rates across a variety of coastal ecosystems that was utilized in the Tampa Bay Blue Carbon Assessment (ESA, 2017; linkage below). Ten sediment cores were collected from six Tampa Bay wetland sites in October 2015 (maximum core length 40 centimeters). Three main vegetation types were targeted for core collection: salt marsh, dominated by Juncus and Spartina alternaflora; mangrove, including Rhizophora mangle, Laguncularia racemosa and\/or Avicennia germinans; and young mangrove, where wetlands were created within the last three decades. An additional surface sediment sample was collected from a salt barren, as this site was not conducive to coring. Marsh surface elevations were measured at each site (ranging from 0.771 meters to 1.462 meters relative to NAVD88) to determine the marsh boundaries within current tidal conditions.  Continuous Rate of Supply age models, based on lead-210 and cesium-137 isotope analysis, were constructed to evaluate how vertical accretion and carbon burial rates have changed during the past century. Over that time, accretion rates were very similar for each ecosystem: restored marsh sites (2.5 mm per year), followed by the salt marshes (2.7 mm per year) and mature mangroves (3.2 mm per year). The resulting carbon burial rates over the past century vary as a function of vegetation type, with mature mangroves burying on average 163 grams carbon per square meter per year, compared to young (restoring) mangroves with an average of 94 grams carbon per square meter per year and the salt marsh with an average of 64 grams carbon per square meter per year . This dataset also includes dry bulk density (0.02 - 1.70 grams per cubic centimeter),  percent carbon (0.32 %-39.08 %), and percent loss on ignition (0.66 % \u2013 80.2 %) from a sub-set of core sections in order to assess possible correlative relationships among these parameters.   https:\/\/estuaries.org\/wp-content\/uploads\/2019\/02\/FINAL_Tampa-Bay-Blue-Carbon-Assessment-Report-updated-compressed.pdf",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "O'Keefe Suttles, Jennifer A.",
            "role": "Author"
        },
        {
            "name": "Eagle, Meagan J.",
            "role": "Author"
        },
        {
            "name": "Mann, Adrian G.",
            "role": "Author"
        },
        {
            "name": "Smith, Christopher G.",
            "role": "Author"
        },
        {
            "name": "Kroeger, Kevin D.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "1420",
            "name": "carbon",
            "scope": "Nonmetal element with symbol C and atomic number 6 <http:\/\/periodic.lanl.gov\/6.shtml>"
        },
        {
            "thcode": 2,
            "code": "142",
            "name": "carbon isotope analysis",
            "scope": "Experimental determination of the proportion of a given stable carbon isotope (C12 or C13) in a sample."
        },
        {
            "thcode": 2,
            "code": "1522",
            "name": "nitrogen",
            "scope": "Nonmetal element with symbol N and atomic number 7 <http:\/\/periodic.lanl.gov\/7.shtml>"
        },
        {
            "thcode": 2,
            "code": "954",
            "name": "radiometric dating",
            "scope": "Methods for age determination of rocks and fossils by measuring the proportions of naturally occurring radioactive isotopes to their decay products."
        },
        {
            "thcode": 2,
            "code": "1028",
            "name": "sea-level change",
            "scope": "Variation in the relative vertical position of land and ocean waters. Caused globally by changes in the distribution of ice masses and the shape of the oceans, and locally by the rate of uplift or subsidence of the land surface.  Includes both global (eustatic) and local (relative) sea-level variations."
        },
        {
            "thcode": 2,
            "code": "1036",
            "name": "sedimentation",
            "scope": "Process of deposition of sediments (loose, uncemented pieces of rock, mineral fragments, or biological materials).  The sediments settle out of water or air into layers on a surface."
        },
        {
            "thcode": 2,
            "code": "1078",
            "name": "soil chemistry",
            "scope": "Branch of chemistry concerned with the elements and compounds that make up soils. Includes chemical processes involving soils."
        },
        {
            "thcode": 2,
            "code": "1326",
            "name": "wetland ecosystems",
            "scope": "Ecosystems whose soil is saturated for long periods seasonally or continuously, including marshes, swamps, and ephemeral ponds.  More detailed terms for wetlands can be selected from the FGDC Wetland Classification <http:\/\/fgdc.gov\/standards\/status\/sub3_4.html>."
        },
        {
            "thcode": 15,
            "code": "006",
            "name": "elevation",
            "scope": "Height above or below sea level, for example altitude, bathymetry, digital elevation models, slope, derived products, DEMs, TINs"
        },
        {
            "thcode": 15,
            "code": "007",
            "name": "environment",
            "scope": "Environmental resources, protection and conservation, for example environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape, water quality, air quality, environmental modeling"
        },
        {
            "thcode": 15,
            "code": "008",
            "name": "geoscientificInformation",
            "scope": "Information pertaining to earth sciences, for example geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth's rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, groundwater, erosion"
        },
        {
            "thcode": 15,
            "code": "012",
            "name": "inlandWaters",
            "scope": "Inland water features, drainage systems and characteristics, for example rivers and glaciers, salt lakes, water utilization plans, dams, currents, floods and flood hazards, water quality, hydrographic charts, watersheds, wetlands, hydrography"
        },
        {
            "thcode": 15,
            "code": "013",
            "name": "location",
            "scope": "Positional information and services, for example addresses, geodetic networks, geodetic control points, postal zones and services, place names, geographic names"
        },
        {
            "thcode": 15,
            "code": "014",
            "name": "oceans",
            "scope": "Features and characteristics of salt water bodies (excluding inland waters), for example tides, tidal waves, coastal information, reefs, maritime, outer continental shelf submerged lands, shoreline"
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/www.sciencebase.gov\/catalog\/file\/get\/60bfb8a4d34e86b938916d6f?name=TampaBay_Wetland.jpg",
            "description": "Browse graphic is a photograph of a Juncus marsh in the Tampa Bay estuary, Florida."
        }
    ],
    "fan": [
        "2015-071-FA"
    ]
}