podsolic soil
Học thuậtThân thiện
A scientist examines a vertical cross-section of podsolic soil in a forest clearing.
Definition
- Noun:
- A type of acidic forest soil: Podsolic soil is a soil that develops in cool, moist temperate to cold climates under vegetation such as coniferous trees or heath. It is characterized by a distinct layered structure, typically featuring a surface layer of organic matter (an organic mat) over a pale, ash-grey layer from which nutrients have been leached.
Usage Examples
- Noun:
- The pine forest thrives on the infertile podsolic soil.
- Agricultural use of podsolic soil often requires careful management due to its natural acidity and low fertility.
Advanced Usage
- In pedology (soil science): The term is used to classify a major soil order in some systems, describing its specific process of formation (podzolization) and characteristic horizon sequence.
- The soil profile showed the classic eluviation horizon of a podsolic soil.
Variants and Related Words
- Podzol (n): A more common international synonym for podsolic soil.
- Podzols are widespread in the boreal forest region.
- Podzolization (n): The soil-forming process that creates podsolic soil, involving the leaching of iron, aluminum, and organic matter from the surface layer.
- Podzolization is accelerated by acidic leaf litter from conifers.
Synonyms
- Podzol: The direct synonym, frequently used in global soil taxonomy.
- Spodosol: The taxonomic term used in the USDA soil classification system for soils exhibiting podzolization.
Related Terms (Not Phrasal Verbs)
- Leached layer (n): The pale, nutrient-depleted horizon (often called the E horizon) typical in podsolic soil profiles.
- Illuviation horizon (n): The subsurface layer (often called the B horizon) where leached materials accumulate.
A scientist examines a vertical cross-section of podsolic soil in a forest clearing.
Noun
- a soil that develops in temperate to cold moist climates under coniferous or heath vegetation; an organic mat over a grey leached layer