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Encyclopedia > Marsh
Freshwater marsh in Florida
Freshwater marsh in Florida

In geography, a marsh, or morass, is a type of wetland which is subject to frequent or continuous inundation.[1] Typically a marsh features grasses, rushes, reeds, typhas, sedges, and other herbaceous plants (possibly with low-growing woody plants) in a context of shallow water. A marsh is different from a swamp, which has a greater proportion of open water surface, and is generally deeper than a marsh. In North America, the term swamp is used for wetland dominated by trees rather than grasses and low herbs. The word marsh has more than one meaning: Marsh is a type of wetland. ... Image File history File links Florida_freshwater_marshes_usgov_image. ... Image File history File links Florida_freshwater_marshes_usgov_image. ... A subtropical wetland in Florida, USA, with an endangered American Crocodile. ... A flood (in Old English flod, a word common to Teutonic languages; compare German Flut, Dutch vloed from the same root as is seen in flow, float) is an overflow of water, an expanse of water submerging land, a deluge. ... Subfamilies There are 7 subfamilies: Subfamily Arundinoideae Subfamily Bambusoideae Subfamily Centothecoideae Subfamily Chloridoideae Subfamily Panicoideae Subfamily Pooideae Subfamily Stipoideae The true grasses are monocotyledonous plants (Class Liliopsida) in the Family Poaceae, also known as Gramineae. ... Genera Andesia Distichia Juncus - Rush Luzula - Woodrush Marsippospermum Oxychloë Prionium Rostkovia The Juncaceae, or the Rush Family, is a rather small monocot flowering plant family. ... Binomial name Phragmites australis (Cav. ... Species See text Typha is a genus of about eleven species of monocotyledonous flowering plants in the monogeneric family, Typhaceae. ... Cyperales is an order comprising monocot flowering plants of a single family, the Cyperaceae, known as sedges. ... For other uses, see Plant (disambiguation). ... Impact from a water drop causes an upward rebound jet surrounded by circular capillary waves. ... This article does not cite any references or sources. ... A subtropical wetland in Florida, USA, with an endangered American Crocodile. ... For other uses, see Herb (disambiguation). ...


The water of a marsh can be fresh, brackish or saline. Coastal marshes may be associated with estuaries and along waterways between coastal barrier islands and the inner coast. The estuarine marsh, or tidal marsh, is often based on soils consisting of sandy bottoms or bay muds. An example is the Tantramar Marsh of eastern Canada. For the village on the Isle of Wight, see Freshwater, Isle of Wight. ... Brackish water is water that is saltier than fresh water, but not as salty as sea water. ... Annual mean sea surface salinity for the World Ocean. ... For other meanings, see Estuary (disambiguation) Río de la Plata estuary An estuary is a semi-enclosed coastal body of water with one or more rivers or streams flowing into it, and with a free connection to the open sea. ... For other uses, see Coast (disambiguation). ... In geography, a bar is a linear shoaling landform feature within a body of water. ... An Atlantic coastal salt marsh in Connecticut. ... Richardson Bay mudflats of are exposed layers of bay mud Bay mud consists of thick deposits of soft, unconsolidated silty clay, which is saturated with water; these soil layers are situated at the bottom of certain estuaries, which are normally in temperate regions that have experienced cyclical glacial cycles. ... A typical view of the Tantramar Marsh showing the edge of an active dyke at left and remnants of old plank facing at right that was used on the seaward side of older dykes. ...


Below water decomposition processes often produce marsh gas, which may through self-ignition manifest as Will o' the wisps (aka. Jack-a-lanterns or spirites). Natural gas rig Natural gas is a gas produced by the anaerobic decay of organic material. ... Self-ignition can refer either to Spontaneous combustion or the ability of Diesel fuel to ignite under high compression and the use of that phenomenon in Diesel engines Category: ... For other uses, see Will-o-the-wisp (disambiguation). ...


Marshes are critically important wildlife habitats, often serving as breeding grounds for a wide variety of animal life. Habitat (which is Latin for it inhabits) is the place where a particular species live and grow. ... For other uses, see Animal (disambiguation). ...


Constructed wetlands featuring surface-flow design are usually in the form of a marsh. // A constructed wetland is an artificial marsh or swamp, created for anthropogenic discharge such as wastewater, stormwater runoff or sewage treatment, and as habitat for wildlife, or for land reclamation after mining or other disturbance. ...

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See also

Nymphaea alba, a species of water lily. ... Big Cypress Bayou in Jefferson, Texas off of U.S. Route 59. ... Diademed Sifaka, an endangered primate of Madagascar Biodiversity Action Plan (BAP) is a an internationally recognized programme addressing threatened species or habitats, which is designed to protect and restore biological systems. ... Lütt-Witt Moor, a bog in Henstedt-Ulzburg in northern Germany. ... A fen is a sere, a phase in the natural ecological succession from the open water of a lake to (for example) woodland. ... The Mesopotamian Marshes are a wetland area located in Southern Iraq bordering Iran. ... An Atlantic coastal salt marsh in Connecticut. ... This article does not cite any references or sources. ... Will o the Wisp (reenacted) The will o the wisp or ignis fatuus, or in plural form as ignes fatui (fools fire(s)) refers to the ghostly lights sometimes seen at night or twilight that hover over damp ground in still air — often over bogs. ...

Reference line notes

  1. ^ U.S. Environmental Protection Agency: Characterization of marshes

External links


  Results from FactBites:
 
Ngaio Marsh - definition of Ngaio Marsh in Encyclopedia (494 words)
Ngaio (SAMPA [email protected]) Marsh was educated at St Margaret's College in Christchurch, New Zealand, where she was a foundation pupil.
Marsh's first love, however, was the theatre, and in New Zealand she is remembered more for her theatrical endeavours than her detective fiction.
The 430-seat Ngaio Marsh Theatre at the University of Canterbury is named in her honour.
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