MARSHES AND BOGS

MARSHES AND BOGS A bog is an area of wet, spongy ground, consistj.ng of decomposing moss and other veg­etation, on the surface of a shallow pond or lake. Marshes and swamps are poorly drained, low-lying tracts of land that possess distinct flora. These are places where water stands at or close to the ground surface over a broad area. Some emerge by shifting of river channels on flood plains, while others emerge from the sea. Rushes, reeds and certain mosses are characteristic of marshland. A marsh may be drained to provide agricultural land as has occurred in the Fens of East Anglia.