This article provides a note on avalanching and dunes. Avalanching: On an unprotected large eroding field, the rate of flow increases with distance to leeward side. Soil flow is zero at the windward edge of an eroding field, but the rate increases leeward until the flow becomes maximum for the wind of specific velocity. This acceleration of soil flow with [...]
After reading this article you will learn about the cation and anion exchange in soils. Cation Exchange in Soils: Cations surrounding the soil colloidal complex i.e. clay and humic micelle are called exchangeable cations because they can be reversibly replaced equivalently by other cations. For example when ammonium chloride is applied to the soil, then ammonium ions gradually and reversibly [...]
Soil profile may be defined as a vertical section through a soil. It represents sequence of horizons or layers differentiated from one another but genetically related and included to the parent material from which the soil profile is developed. A soil profile is an historic record of all the soil forming processes and it forms the unit of study in [...]