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The Herring River estuary in Wellfleet, Cape Cod, Massachusetts, has been tidally restricted for more than a century by a dike constructed near the mouth of the river. Upstream from the dike, the tidal restriction has caused the conversion of salt marsh wetlands to various other ecosystems including impounded freshwater marshes, flooded shrub land, drained forested upland, and brackish wetlands dominated by Phragmites australis. This estuary is now managed by the National Park Service, which plans to replace the aging dike and restore tidal flow to the estuary. To assist National Park Service land managers with restoration planning, the U.S. Geological Survey collected fourteen sediment cores from different ecosystems...
Categories: Data;
Tags: 137-cesium,
210-lead,
Barnstable County (606927),
Cape Cod (606914),
Cape Cod National Seashore (606900), All tags...
Commonwealth of Massachusetts (606926),
Constant Rate of Supply (CRS) model,
Duck Creek (616758),
Geochemistry,
Herring River (616776),
Town of Wellfleet (618261),
United States of America,
Wellfleet Harbor (616838),
accretion rate,
age model,
carbon,
carbon burial,
carbon isotope analysis,
ecological restoration,
elevation,
environment,
geoscientificInformation,
inlandWaters,
location,
nitrogen,
oceans,
piston coring,
radiometric dating,
salt marshes,
sea-level change,
sedimentation,
soil chemistry,
wetland ecosystems,
wetland soils,
wetlands, Fewer tags
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Saline tidal wetlands are important sites of carbon sequestration and produce negligible methane (CH4) emissions due to regular inundation with sulfate-rich seawater. Yet, widespread management of coastal hydrology has restricted vast areas of coastal wetlands to tidal exchange. These ecosystems often undergo impoundment and freshening, which in turn cause vegetation shifts like invasion by Phragmites, that affect ecosystem carbon balance. Understanding controls of carbon exchange in these understudied ecosystems is critical for informing climate consequences of blue carbon restoration and/or management interventions. Here we present measurements of net ecosystem exchange of carbon dioxide (CO2) and methane, along...
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Saline tidal wetlands are important sites of carbon sequestration and produce negligible methane (CH4) emissions due to regular inundation with sulfate-rich seawater. Yet, widespread management of coastal hydrology has restricted vast areas of coastal wetlands to tidal exchange. These ecosystems often undergo impoundment and freshening, which in turn cause vegetation shifts like invasion by Phragmites, that affect ecosystem carbon balance. Understanding controls of carbon exchange in these understudied ecosystems is critical for informing climate consequences of blue carbon restoration and/or management interventions. Here we present measurements of net ecosystem exchange of carbon dioxide (CO2) and methane, along...
Categories: Data;
Tags: Barnstable County (606927),
Cape Cod (606914),
Cape Cod National Seashore (606900),
Commonwealth of Massachusetts (606926),
Herring River (616776), All tags...
biota,
brackish marsh,
carbon,
carbon dioxide flux,
climatologyMeteorologyAtmosphere,
ecological processes,
ecological restoration,
ecology,
eddy covariance,
environment,
geoscientificInformation,
invasive species,
methane flux,
net ecosystem exchange,
salt marshes,
wetland ecosystems,
wetland functions,
wetlands, Fewer tags
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Salt marshes are environmental ecosystems that contribute to coastal landscape resiliency to storms and rising sea level. Ninety percent of mid-Atlantic and New England salt marshes have been impacted by parallel grid ditching that began in the 1920s–40s to control mosquito populations and to provide employment opportunities during the Great Depression (James-Pirri and others, 2009; Kennish, 2001). Continued alteration of salt marsh hydrology has had unintended consequences for salt marsh sustainability and ecosystem services. Great Barnstable Marsh (Barnstable, Cape Cod, Massachusetts) has areas of salt marsh that were ditched as well as natural areas. The U.S. Geological Survey (USGS) measured parameters for groundwater...
Tags: Barnstable County (606927),
CTD measurement,
Cape Cod (606914),
Commonwealth of Massachusetts (606926),
Environmental Health, All tags...
Geochemistry,
Great Marshes (615723),
Sandy Neck (615779),
United States of America (1890467),
air temperature,
atmospheric pressure,
ecological restoration,
environment,
field experiments,
field inventory and monitoring,
groundwater level,
inlandWaters,
photosynthetically active radiation,
salinity,
salt marshes,
soil temperature,
water level measurements,
water temperature,
wetland ecosystems,
wetland soils,
wetlands, Fewer tags
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Saline tidal wetlands are important sites of carbon sequestration and produce negligible methane (CH4) emissions due to regular inundation with sulfate-rich seawater. Yet, widespread management of coastal hydrology has restricted vast areas of coastal wetlands to tidal exchange. These ecosystems often undergo impoundment and freshening, which in turn cause vegetation shifts like invasion by Phragmites, that affect ecosystem carbon balance. Understanding controls of carbon exchange in these understudied ecosystems is critical for informing climate consequences of blue carbon restoration and/or management interventions. Here we present measurements of net ecosystem exchange of carbon dioxide (CO2) and methane, along...
Categories: Data;
Tags: Barnstable County (606927),
Cape Cod (606914),
Cape Cod National Seashore (606900),
Commonwealth of Massachusetts (606926),
Herring River (616776), All tags...
Sage Lot Pond (616548),
United States of America,
biota,
carbon,
climatologyMeteorologyAtmosphere,
ecological processes,
ecological restoration,
ecology,
environment,
geoscientificInformation,
invasive species,
salt marshes,
wetland ecosystems,
wetland functions,
wetlands, Fewer tags
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