Monday, 24 February 2014

soil structure

          &nbs...

Soil Forming Processes

Soil Forming Processes There are five key processes by which soil is formed, they are: Leaching - leaching is the removal of soluable components of the soil column. As water washes down through the soil it can carry away bases such as calcium, held as exchangeable ions in clay-humus complexes, as well as acidification through the substitution of hydrogen ions. Eluviation - here soil particles held in suspension, such as clay, are removed...

weathering

This article is a weathering Weathering has begun to take its final toll on Landscape Arch—several large rocks have fallen from the thinnest section of the arch. Photograph by Richard Branham, MyShot Weathered Mountains The Appalachian Mountains in eastern North America once towered more than 9,000 meters (30,000 feet) high—taller than Mount Everest! Over millions of years, weathering and erosion have worn them down. Today, the...