17 Result(s)
within
Donald R. Cahoon
Environment
English
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Article
Measuring and Interpreting the Surface and Shallow Subsurface Process Influences on Coastal Wetland Elevation: A Review
A century ago, measuring elevation in tidal wetlands proved difficult, as survey leveling of soft marsh soils relative to a fixed datum was error prone. For 60 years, vertical accretion measures from marker ho...
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Article
Correction: Presence of Hummock and Hollow Microtopography Reflects Shifting Balances of Shallow Subsidence and Root Zone Expansion Along Forested Wetland River Gradients
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Article
Twenty-Year Record of Salt Marsh Elevation Dynamics in Response to Sea-Level Rise and Storm-Driven Barrier Island Geomorphic Processes: Fire Island, NY, USA
Twenty years of surface elevation table and marker horizon monitoring at three sites along the Fire Island (New York, USA) barrier island indicates that rates of marsh surface elevation change (Watch Hill, 4.4...
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Article
Presence of Hummock and Hollow Microtopography Reflects Shifting Balances of Shallow Subsidence and Root Zone Expansion Along Forested Wetland River Gradients
Tidal freshwater forested wetlands (TFFWs) are in an active phase of transition to tidal marsh with sea level rise and salinity incursion along the Atlantic and Gulf Coasts of the United States (U.S.). A promi...
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Article
Soil Elevation Change in Mangrove Forests and Marshes of the Greater Everglades: A Regional Synthesis of Surface Elevation Table-Marker Horizon (SET-MH) Data
Coastal wetlands adapt to rising seas via feedbacks that build soil elevation, which lead to wetland stability. However, accelerated rates of sea-level rise can exceed soil elevation gain, leading to wetland i...
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Article
How Plants Influence Resilience of Salt Marsh and Mangrove Wetlands to Sea-Level Rise
This review evaluates the importance of plants and associated biological processes in determining the vulnerability of coastal wetlands to sea-level rise. Coastal wetlands occur across a broad sedimentary cont...
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Article
Processes Influencing Marsh Elevation Change in Low- and High-Elevation Zones of a Temperate Salt Marsh
The movement of salt marshes into uplands and marsh submergence as sea level rises is well documented; however, predicting how coastal marshes will respond to rising sea levels is constrained by a lack of proc...
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Article
Hurricane Sandy Effects on Coastal Marsh Elevation Change
High-magnitude storm events such as Hurricane Sandy are powerful agents of geomorphic change in coastal marshes, potentially altering their surface elevation trajectories. But how do a storm’s impacts vary acr...
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Evaluating the Relationship Among Wetland Vertical Development, Elevation Capital, Sea-Level Rise, and Tidal Marsh Sustainability
Accelerating sea-level rise and human impacts to the coast (e.g., altered sediment supply and hydrology, nutrient loading) influence the accumulation of sediment and organic matter, and thereby impact the abil...
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Article
Estimating Relative Sea-Level Rise and Submergence Potential at a Coastal Wetland
A tide gauge records a combined signal of the vertical change (positive or negative) in the level of both the sea and the land to which the gauge is affixed; or relative sea-level change, which is typically re...
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Article
A global standard for monitoring coastal wetland vulnerability to accelerated sea-level rise
Reliable measurements of changes in wetland surface elevation are necessary to understand and predict the probable impact of sea-level rise on vulnerable coastal ecosystems and for science-informed management,...
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Chapter
Vulnerability and Impacts on Natural Resources
Climate change-mediated impacts originating from terrestrial and marine sources interact at the coast to influence coastal habitats (Nicholls et al., 2007; Rosenzweig et al., 2007; Figure 3-1; Table 3-1). On t...
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Article
A review of major storm impacts on coastal wetland elevations
Storms have long been recognized as agents of geomorphic change to coastal wetlands. A review of recent data on soil elevation dynamics before and after storms revealed that storms affected wetland elevations ...
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Article
Surface elevation dynamics in vegetatedSpartina marshes versus unvegetated tidal ponds along the Mid-Atlantic coast, USA, with implications to waterbirds
Mid Atlantic coastal salt marshes contain a matrix of vegetation diversified by tidal pools, pannes, and creeks, providing habitats of varying importance to many species of breeding, migrating, and wintering w...
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Article
Groundwater control of mangrove surface elevation: Shrink and swell varies with soil depth
We measured monthly soil surface elevation change and determined its relationship to groundwater changes at a mangrove forest site along Shark River, Everglades National Park, Florida. We combined the use of a...
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Article
Accretion and canal impacts in a rapidly subsiding wetland II. Feldspar marker horizon technique
Recent (6–12 month) marsh sediment accretion and accumulation rates were measured with feldspar marker horizons in the vicinity of natural waterways and man-made canals with spoil banks in the rapidly subsidin...
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Article
Marsh management plans in practice: Do they work in coastal Louisiana, USA?
Louisiana's coastal wetlands represent about 41% of the nation's total and are extensively managed for fish, fur, and waterfowl. Marsh management plans (MMPs) are currently used to avoid potential user conflic...
