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Ultisol, commonly known as red clay soil, is one of twelve soil orders in the United States Department of Agriculture soil taxonomy. The word "Ultisol" is derived from "ultimate", because Ultisols were seen as the ultimate product of continuous weathering of minerals in a humid, temperate climate without new soil formation via glaciation.
The Mississippi River Delta is the 7th largest river delta on Earth ( USGS) and is an important coastal region for the United States, containing more than 2.7 million acres (4,200 sq mi; 11,000 km 2) of coastal wetlands and 37% of the estuarine marsh in the conterminous U.S. [1] The coastal area is the nation's largest drainage basin and drains ...
Silt is granular material of a size between sand and clay and composed mostly of broken grains of quartz. [ 1] Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension with water. Silt usually has a floury feel when dry, and lacks plasticity when wet. Silt can also be felt by the tongue as granular when placed ...
Geomorphology of the Loess Plateau. The Chinese Loess Plateau, or simply the Loess Plateau, is a plateau in north-central China formed of loess, a clastic silt-like sediment formed by the accumulation of wind-blown dust. It is located southeast of the Gobi Desert and is surrounded by the Yellow River.
Loam soils generally contain more nutrients, moisture, and humus than sandy soils, have better drainage and infiltration of water and air than silt- and clay-rich soils, and are easier to till than clay soils. In fact, the primary definition of loam in most dictionaries is soils containing humus (organic content) with no mention of particle ...
Once considered the ideal place to live out one's golden years, Florida is quickly losing favor with retirement-aged folks. Remote workers and the wealthy are flocking to the state and driving up ...
If the particle contains potential plant nutrients in mineral form, such processes result in the release of the nutrients in readily available, ionic form. Thus, a high specific surface is a major reason why silty soils tend to be relatively fertile. Clay particles are finer than silt, being less than 0.002 mm in diameter.
A floodplain or flood plain or bottomlands[ 1] is an area of land adjacent to a river. Floodplains stretch from the banks of a river channel to the base of the enclosing valley, and experience flooding during periods of high discharge. [ 2] The soils usually consist of clays, silts, sands, and gravels deposited during floods.