What is a Wetland? | US EPA
网页2024年4月25日 · 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 year, including during the growing season.
Wetland - Wikipedia
网页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 for a shorter periods. Flooding results in oxygen -poor (anoxic) processes taking place, especially in …
West Hylebos Wetlands Park - Federal Way Tourism
网页The West Hylebos Wetlands Parks features a large trail network through 120 acres of unique old growth forest and wetlands in the heart of Federal Way. These wetlands are equal parts wildlife refuge, ecological and hydrological conservatory, nature trail, and pure natural wonder.
Wetland - National Geographic Society
网页2023年10月19日 · 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 also come from a nearby river or lake. Seawater can also create wetlands, especially in coastal areas that experience strong tides.
What are wetlands? | U.S. Geological Survey - USGS.gov
网页Wetlands are transitional areas, sandwiched between permanently flooded deepwater environments and well-drained uplands, where the water table is usually at or near the surface or the land is covered by shallow water. They include mangroves, marshes (salt, brackish, intermediate, and fresh), swamps, forested wetlands, bogs, wet prairies ...
Wetlands Protection and Restoration | US EPA
网页2024年8月22日 · Wetlands are areas where water covers soil all or part of the time. Wetlands are important because they protect and improve water quality, provide fish and wildlife habitats, store floodwaters and maintain surface water flow during dry periods.
What is a wetland? And 8 other wetland facts | Stories | WWF
网页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 ecosystem. You can recognize wetlands from other types of land or bodies of water primarily by the vegetation that has adapted to wet soil. © Roger Leguen / WWF-Canon.
What are wetlands, and why are they so critical for life on Earth?
网页2023年2月24日 · Wetlands are carbon sinks that, when destroyed, can become a major source of greenhouse gas emissions. Altogether, wetlands contain about a third of the world’s carbon, and when they’re ...
Classification and Types of Wetlands | US EPA
网页2024年4月11日 · As the title implies, wetlands are classified by their geomorphic setting, dominant water source (e.g. precipitation, groundwater or surface water) and hydrodynamics. The hydrogeomorphic (HGM) includes five major wetland types: riverine, slope depressional, flat and fringe.
Wetland | Definition, Characteristics, Animals, Plants, Examples ...
网页2024年9月10日 · Wetland, complex ecosystem characterized by flooding or saturation of the soil, which creates low-oxygen environments that favour a specialized assemblage of plants, animals, and microbes, which exhibit adaptations designed to tolerate periods of sluggishly moving or standing water.
跳至内容