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These data represent surface elevation change (or "Vertical Land Motion of the Wetland": VLMw) and vertical accretion time series collected from a series of created tidal wetland sites in the Tampa Bay watershed, Florida, USA. VLMw was measured using a combination of rod Surface Elevation Tables (RSETs), shallow root-zone SETs, and feldspar marker horizons. Sites were created and planted with saltmarsh vegetation originally, but mangroves naturally colonized the sites over time. These data represent a five year record, and were initiated on 9 sites that spanned an age gradient of 2.4 - 20.2 years at the time of first measurement, but which became 7.3 - 25.1 years by the time of the last measurement included in this...
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This data release consists of vegetation cover, soil surface elevation (also called vertical land motion of the wetland (VLMw)), and vertical accretion data collected over 23 months beginning in May 2001 in a restored brackish marsh in southeast Louisiana, USA. Vegetation cover was estimated in permanent plots, and soil cores were collected for determination of bulk density, organic matter content and texture. VLMw was measured using rod surface elevation tables, while accretion was measured using feldspar marker horizons (i.e., RSET-MH technique).
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These data were collected from a small (14 ha), created salt marsh in Carteret County, North Carolina (34.82 deg. N; 76.61 deg. W). This site was created in 2007 following an engineering plan developed by Dr. Michael Burchell (NC-State University). This data collection was to support the development of a site-specific carbon budget. Data were collected from 2011 to 2013, or approximately 4-6 years post-creation. The data collection specifically funded by the U.S. Geological Survey includes plant carbon biomass, plant above ground biomass, plant below ground biomass, plant decomposition, and soil greenhouse gas fluxes, and these data are being made available. These data represent critical components of the carbon...
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This dataset consists of tabular information from coastal studies of earthquake and tsunami history along a central part of the Cascadia Subduction Zone. The study area encompasses four estuaries along the Pacific coast of southern Washington and northernmost Oregon. Nearly all the field work took place between 1986 and 1998. Data tables, 18 in all, archive mostly georeferenced information about stratigraphy, radiocarbon ages, and trees dead and living. Some of this data was interpreted in reports published between 1987 and 2005, but most of it was previously unavailable. An accompanying guide, with hyperlinks to the data tables, explains the data tables more thoroughly than does the metadata. Contributors include...
    map background search result map search result map Plant biomass, carbon content, decomposition, and soil greenhouse gas fluxes to support carbon budget development for a created salt marsh in eastern North Carolina, USA Plant community establishment in a coastal marsh restored using sediment additions, Barataria Basin, Louisiana Data compiled from stratigraphic and tree-ring studies of late Holocene earthquakes and tsunamis at Copalis River, Grays Harbor, Willapa Bay, and Columbia River, Washington and Oregon Plant biomass, carbon content, decomposition, and soil greenhouse gas fluxes to support carbon budget development for a created salt marsh in eastern North Carolina, USA Plant community establishment in a coastal marsh restored using sediment additions, Barataria Basin, Louisiana Data compiled from stratigraphic and tree-ring studies of late Holocene earthquakes and tsunamis at Copalis River, Grays Harbor, Willapa Bay, and Columbia River, Washington and Oregon