Geography & History Notes | KCSE, NECTA, ZIMSEC & GCSE

  Cheluviation is the process in which the minerals are dissolved and transported downwards under the influence of chelating agents. Chelating agents are the organic acids produced after the decomposition of organic matter Cheluviation is one of the processes of soil formation.  The echolocation process is similar to leaching in that it involves the downward movement of materials from upper soil to lower soil layer but they differ in how what causes the process. In the cheluviation plant, acids are involved in causing the movement while in leaching water alone is involved in causing the movement. RELATED POSTS IMPORTANCE OF SOIL STRUCTURE     7 CHARACTERISTICS OF EQUATORIAL CLIMATE    7 ADVANTAGES OF WETLANDS     7 FACTORS INFLUENCING MASS WASTING    5 CONDITIONS FOR EXISTENCE OF CORAL REEFS    3 TYPES OF WEATHERING AND THEIR PROCESSES    6 LANDFORMS OF HIGHLANDS GLACIATION

  Soil is defined as the uppermost surface layer of loose or unconsolidated materials which overlie the crustal rock on which plant grows. Soil can also be defined as a mixture of minerals, organic matter, gases, liquids, and myriads organisms. The following are the processes that are involved in soil formation.  Organic accumulation. This process involve accumulation of decaying vegetables and animal matter on the ground surface. The accumulated mass slowly breaks down to form humus which is major components of the soil.  Eluviation. This is mechanical wash down of fine mineral particles like those of clay from the upper layer of the soil into middle of lower layers. The materials are moved in suspension by water which is percolating downward . Eluviation can take place in the the same layer when the water percolate horizontally. The upper layer from which materials have been eluviated is called eluvial zone Leaching . This is the removal of soluble mineral matter in...