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wetlands    音标拼音: [w'ɛtl,ændz]
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  • What is a Wetland? | US EPA
    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
    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 "
  • 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
    During periods of excessive rain, wetlands absorb and slow floodwaters, which helps to alleviate property damage and may even save lives Wetlands also absorb excess nutrients, sediments, and other pollutants before they reach rivers, lakes, and other waterbodies
  • 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
    What are wetlands? 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
  • Home - Wetlands International
    We are dedicated to the conservation and restoration of wetlands Our vision is a world where wetlands are treasured and nurtured for their beauty, the life they support, and the resources they provide
  • What is a Wetland? - The Wetlands Initiative
    More specifically, wetlands are areas where the presence of water determines or influences most, if not all, of an area's biogeochemistry—that is, the biological, physical, and chemical characteristics of a particular site
  • What Is a Wetland? Plus 8 Key Wetland Facts | World Wildlife Fund
    Explore what wetlands are, why they matter, and eight fascinating facts about these vital ecosystems and WWF’s work to protect them





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