Global ETD Search

Environmental and Digital Data Analysis of the National Wetlands Inventory (NWI) Landscape Position Classification System

Sandy, Alexis EmilyVirginia Tech2006

The National Wetlands Inventory (NWI) is the definitive source for wetland resources in the United States. The NWI production unit in Hadley, MA has begun to upgrade their digital map database, integrating descriptors for assessment of wetland functions. Updating is conducted manually and some …

vt Repository record for Environmental and Digital Data Analysis of the National Wetlands Inventory (NWI) Landscape Position Classification System (opens in a new tab)

Modeling and classifying variable width riparian zones utilizing digital elevation models, flood height data, digital soil data and national wetlands inventory : a new approach for riparian zone delineation

Abood, Sinan A.

mtu Repository record for Modeling and classifying variable width riparian zones utilizing digital elevation models, flood height data, digital soil data and national wetlands inventory : a new approach for riparian zone delineation (opens in a new tab)

Evaluating Surface Area-Basin Volume Relationships for Prairie Potholes

Davis, Mike A.

… two potholes were separated according to their National Wetlands Inventory (NWI) classification and tested using chi squared. T and F tests on the separate classes verified if the populations have a different mean and variance. Difference in depth, in particular, suggests that the two most …

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Demographics of Western South Dakota Wetlands and Basins

Rieger, Bryan A.

<p>Wetlands, whether natural or man-made in origin, are an important feature of the semiarid landscape of western South Dakota. These wetlands have numerous social and economic values and functions for both landowners and non-owners, as well as for fish and wildlife species. For this reason, …

sdstate Repository record for Demographics of Western South Dakota Wetlands and Basins (opens in a new tab)

Assessing the Effect of Wetland Connectivity on In-Stream Nitrate Concentrations Using an Integrated Wetland-River Network

Wall, Heather ElizabethVirginia Tech2025

… from waterbodies through denitrification with wetlands being the most effective due to their long residence time. Wetland restoration has the potential to remove nitrate from small portions of the landscape. The question is how to place wetlands to most effectively remove nitrate across a …

vt Repository record for Assessing the Effect of Wetland Connectivity on In-Stream Nitrate Concentrations Using an Integrated Wetland-River Network (opens in a new tab)

Demographics of Eastern South Dakota Wetlands and Wetland Basins and Techniques for Estimating the Area and Number of Wetland Basins

Johnson, Rex R.

<p>Circa 1984, wetlands and deepwater habitats mapped by the National Wetlands Inventory (NWI) covered 899,277 ha, or 9.8% of eastern South Dakota. Of these 899,277 ha, palustrine system wetlands covered 720,704 ha or 80.1% of the total area, lacustrine system wetlands and deepwater habitats …

sdstate Repository record for Demographics of Eastern South Dakota Wetlands and Wetland Basins and Techniques for Estimating the Area and Number of Wetland Basins (opens in a new tab)

Ecological Limitations and Potentials of Artificial Aquatic Systems

Clifford, Chelsea2018

… Carolina Coastal Plain do not merely degrade wetlands; they themselves have ecological structural characteristics of wetlands. We surveyed 32 agricultural, freeway, and forested ditch reaches across this region for hydrologic indicators, soil organic matter, and plants. All showed some …

duke Repository record for Ecological Limitations and Potentials of Artificial Aquatic Systems (opens in a new tab)