Marshes are often drained for development. A vast marsh of the Tibetan plateau, above,  was drained by the Chinese government in the 20th century, to make way for agricultural and industrial development. Development has reduced the quantity of available water from the Yellow River.

Photograph by Weiqin Liao, MyShot
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marsh Encyclopedic Entry

Best For
6 - 12 and up

Earth science, Biology, Geography

Appropriate For

  • Educators
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A marsh is a wetland, an area of land where water covers ground for long periods of time