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Bark of the northern white cedar. A variety of both evergreen and deciduous trees may be present in the rich conifer swamp in addition to the dominant species.. Thuja occidentalis: Northern white cedar, the dominant conifer, also known as arborvitae, a common landscape specimen in northern U.S. states and Canada.
Swamps, marshes, mires, bogs, and fens are important parts of the natural landscape in Belarus. Vast swamplands historically covered the country, and currently there are around 2.5 million hectares of wetlands in Belarus. Notable swamp regions are Pinsk Marshes and Olmany swamps in Polesia and Yelnya Swamp in Vitebsk region.
Ground cover varies depending on the topography of the swamp area. Sedge heights are usually below 1 metre (3 ft 3 in), with sclerophyllous grasses densely packed providing a large amount of ground cover. Within open areas between the grasses and sedges, there are smaller shrubs, ferns, forbs and occasional trees. [14]
A simplified definition of wetland is "an area of land that is usually saturated with water". [14] More precisely, 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". [15]
The Wetlands Geodatabase is one of the world's largest polygonal datasets (in the civilian sector). The information is increasingly popular and widely used to help identify, conserve, and restore wetland resources across the American landscape. During 2008, the number of website user requests for data exceeded 56.9 million.
Furthermore, it is common in swampy areas, along the banks of slow moving streams, as well as on poorly drained flats and depressions. In northern Michigan and New England , the tree is found on the tops of ridges, sandy or rocky upland and otherwise dry soils, as well as in nearly pure stands on moist soils and the edges of swamps.
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