Built wetlands, also known as constructed, artificial, or treatment wetlands, are water treatment systems built with wetland soils and vegetation to mimic the ecological and biophysical processes that improve water quality in natural wetlands.

Coastal marshes, also frequently called salt marshes, are partially flooded wetlands that are inundated by salt water brought in by the tides but can vary in salinity levels.

Coral reefs are the skeletons of marine invertebrates called coral, which form large underwater structures comprised of colonies.

A floodplain is a low-lying area directly adjacent to a waterbody and partially or fully flooded during high-water events.

Forests provide food, fuel, oxygen, clean water, erosion control, and health benefits to people.

Grasslands, often called prairies in the United States, are habitats where the dominant vegetation type is grass.

An invasive or nuisance pest is a species that causes harm to humans or the environment. This strategy focuses on invasive animal species.

Living shoreline creation refers to the process of planting vegetation along the shoreline and installing structures that help hold the vegetation in place.

Mangrove ecosystems are a form of coastal wetlands found in tropical and subtropical regions. These systems support halophytic (salt-loving) trees, shrubs, and other plants, and are dominated by mangrove trees.

Nontidal wetland restoration is the rehabilitation of a degraded wetland so that its hydrology, vegetation, and ecological processes approximate, to the extent possible, the original natural condition prior to modification.

Peatlands are a type of inland wetland where waterlogged soils prevent plant material from fully decomposing. There are two types of peatlands: tropical peatlands, characterized by high precipitation and temperature, and northern peatlands, which are interspersed among boreal forests and coastal areas.

A riverine system is a watershed-scale network of integrated aquatic habitats and hydrological processes.

Sagebrush habitats exist across the western United States in areas with hot, dry summers and cool, moist winters. They are dominated by big sagebrush (Artemisia tridentata) vegetation and perennial grasses.

Seagrasses are flowering plants that grow entirely underwater and form dense meadows in shallow areas. Seagrass restoration refers to any activities that help return seagrass ecosystems to as close as possible to their state before anthropogenic disturbances.

A stream, also known as a branch, creek, run, or brook, is a continuous surface flow of freshwater within a channel that is smaller than a river. Headwater streams can originate from groundwater (springs), runoff, or a wetland.

Urban greening is a general term used to describe efforts to renature urban areas by installing various types of green infrastructure.

Strategies for urban stormwater and runoff management such as rain gardens, stormwater parks, permeable pavement, and bioswales are intended to reduce these issues by promoting water retention, infiltration, and evapotranspiration instead of runoff.