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Kenilworth Park and Aquatic Gardens
Wetland Characteristics
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Characteristics of Wetlands
From just these definitions, it is clear that a wetland has soil that becomes saturated from precipitation, bodies of water such as rivers and oceans, or from . The must be predictable to some extent. The saturation may be relatively constant at the edge of a river or other permanent body of water like a lake. It may happen daily, where tides flood the area and recede. It may become saturated seasonally for extended periods by rain or snow raising the .
This saturation impacts the soil and what lives in it. Dry soil has pockets of air in it providing oxygen to plants, , and animals for respiration. When air in the soil is replaced by water, it changes the types of bacteria that live in the soil. The type of bacteria will impact the acidity of the soil and decomposition. Hydric soil can be anaerobic and anaerobic bacteria or functional anaerobic bacteria are found in wetland soil. These anaerobic bacteria give wetlands the methane and sulfur smell often associated with them. Some are responsible for maintaining the Others maintain the . The reducing of inorganic molecules by bacteria in wetlands give rise to the hydric soil.
Any mix of interdependent plants and animals are shaped by their physical environment of air, land, and water. In wetlands, ignoring latitude, water - how much there is, how often and long it saturates the soil - with the salinity and pH shapes everything else. Abiotic conditions shape plant species mix. Plants, as the basis for the food web, with hydrology and latitude shape what animals live in a wetland.
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Did You Know?
The President of the United States and their family live in a national park! This park, called President's Park, has been a part of the national park system since 1933!
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Last Updated: February 22, 2008 at 23:52 EST |