A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for years or decades, or only seasonally. Flooding results in oxygen …

The Wetland Mapper fulfills the U.S. Fish and Wildlife Service’s strategic plan for the development, revision and dissemination of wetlands data and information to resource …

Apr 7, 2025 · Definition of a Wetland. Wetlands are areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the …

One basic definition of a wetland is that it is where the water table — which we usually think of as being below ground — occurs at or near the surface of the land, so that the land is covered by …

First, soil and water conditions will vary between wetlands and restored wetland functions may take many years before they can mimic a natural wetland. With different soil and water …

A wetland is a complex ecosystem characterized by flooding or saturation of the soil, which creates low-oxygen environments that favor a specialized assemblage of plants, animals, and …

What is a wetland? A wetland is a place in which the land is covered by water—salt, fresh, or somewhere in between—either seasonally or permanently. It functions as its own distinct …

Wetland habitats serve essential functions in an ecosystem, including acting as water filters, providing flood and erosion control, and furnishing food and homes for fish and wildlife. They …

Oct 19, 2023 · A wetland is an area of land that is either covered by water or saturated with water. The water is often groundwater, seeping up from an aquifer or spring. A wetland’s water can …

The single feature that most wetlands share is soil or substrate that is at least periodically saturated with or covered by water. Learn more: USGS Wetland and Aquatic Research Center