Areas with quick developing soils are those that are exposed to high levels of weathering or are downstream from such areas.
Areas with heavily leached soils, usually in tropical or previously tropical areas.
In areas of volcanic intrusion, areas of hydrothermal deposition, and even in leached soils.
Because desert soils are dry and vegetation, which helps to hold soils in place , is sparse, winds in desert areas can transport greater amounts of soils over longer distances than in humid areas.
Most Philippine soils are considered young because of the relatively recent geological activity in the region. Frequent volcanic eruptions, earthquakes, and weathering processes constantly rejuvenate the soils, preventing them from developing significant age characteristics seen in more stable geological areas.
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Gerhild Boje-Klein has written: 'Problem soils as potential areas for adverse soils-tolerant rice varieties in South and Southeast Asia' -- subject- s -: Problem soils, Rice, Soils, Varieties
The main types of soils found in Haiti include volcanic soils, alluvial soils, and limestone soils. Volcanic soils are fertile and found mainly in the northern part of the country. Alluvial soils are deposited by rivers and are found in valleys and low-lying areas. Limestone soils are found in the southern part of Haiti and tend to be less fertile.
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Mature soils are well-developed soils that have well-defined soil horizons and a balanced composition of organic matter and minerals. Immature soils, on the other hand, are soils that are still developing and lack well-defined horizons, often having a simpler composition and less organic matter. Mature soils generally support a wider range of plant life compared to immature soils.
In upland areas, you can find soils such as ultisols, alfisols, and oxisols. Ultisols are typically weathered, acidic, and nutrient-poor soils. Alfisols are moderately weathered soils with better fertility than ultisols. Oxisols are highly weathered, rich in iron and aluminum, but also low in nutrients.
Examples: oceans, soils, lakes.
Brackish soils are soils that contain a mixture of saltwater and freshwater, with higher salinity levels than freshwater but lower salinity levels than seawater. These soils can be found in coastal areas, estuaries, and marshlands, and are typically a result of tidal influence and the mixing of saltwater and freshwater. Brackish soils can have specific challenges for plant growth and agriculture due to the unique salinity levels.