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wetlands    音标拼音: [w'ɛtl,ændz]
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  • Wetland - Wikipedia
    Article 1 1: " wetlands are areas of marsh, fen, peatland or water, whether natural or artificial, permanent or temporary, with water that is static or flowing, fresh, brackish or salt, including areas of marine water the depth of which at low tide does not exceed six meters "
  • What is a Wetland? | US EPA
    Two general categories of wetlands are recognized: coastal or tidal wetlands and inland or non-tidal wetlands Coastal tidal wetlands in the United States, as their name suggests, are found along the Atlantic, Pacific, Alaskan and Gulf coasts
  • Wetlands Protection and Restoration | US EPA
    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
  • Wetlands Mapper - U. S. Fish Wildlife Service
    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 managers and the public
  • Wetland | Definition, Characteristics, Types, Importance, Examples . . .
    wetland, complex ecosystem characterized by flooding or saturation of the soil, which creates low-oxygen environments that favor a specialized assemblage of plants, animals, and microbes These organisms exhibit adaptations designed to tolerate periods of sluggishly moving or standing water
  • What is a wetland? - NOAAs National Ocean Service
    There are many different kinds of wetlands and many ways to categorize them NOAA classifies wetlands into five general types: marine (ocean), estuarine (estuary), riverine (river), lacustrine (lake), and palustrine (marsh)
  • Wetland - National Geographic Society
    Wetlands go by many names, such as swamps, peatlands, sloughs, marshes, muskegs, bogs, fens, potholes and mires Most scientists consider swamps, marshes and bogs to be the three major kinds of wetlands A swamp is a wetland permanently saturated with water and dominated by trees
  • What are wetlands? | U. S. Geological Survey - USGS. gov
    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
  • What Is a Wetland? Plus 8 Key Wetland Facts | WWF
    Between 300 million and 400 million people live close to and depend on wetlands They support the cultivation of rice, a staple in the diet of half the world’s population They also provide flood control, clean water, shoreline and storm protection, materials, medicines, and vital habitat
  • Wetlands (U. S. National Park Service)
    From salt and freshwater marshes to swamps and bogs, discover these unique habitats, their benefits, and the work we do to protect them Learn more about wetlands—why they are important, the threats they face, the types you can find in parks, and more





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