Alfisols
Alfisols
Alfisols (pronounced: al-fi-sols) are a type of soil order in the Soil Taxonomy system. They are primarily found in temperate and tropical regions, often under hardwood forest vegetation.
Etymology
The term "Alfisols" is derived from the words "Alf" and "isol", where "Alf" is a prefix used in soil science to denote the presence of Aluminium and Iron, and "isol" is a suffix derived from the word "soil".
Description
Alfisols are characterized by a well-developed, clay-enriched subsoil horizon known as an argillic horizon. This horizon exhibits high base saturation, meaning it has a high capacity to retain and supply nutrients to plants. Alfisols are typically fertile and productive for agricultural use, especially when managed properly.
Distribution
Alfisols are found worldwide, but are most common in temperate and tropical regions. They are often associated with deciduous forests, such as those found in the eastern United States, Europe, and Asia. In the tropics, they are typically found under savanna vegetation.
Related Terms
- Soil Taxonomy: A classification system for soils, developed by the United States Department of Agriculture (USDA), that categorizes soils based on their properties.
- Argillic Horizon: A subsoil horizon that is enriched with clay, often found in Alfisols.
- Base Saturation: A measure of the soil's ability to retain and supply nutrients to plants.
- Aluminium: A chemical element often found in Alfisols.
- Iron: A chemical element often found in Alfisols.
External links
- Medical encyclopedia article on Alfisols
- Wikipedia's article - Alfisols
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