tundra soil
Học thuậtThân thiện
Definition
Noun: A type of soil found in Arctic and subarctic regions, characterized by a dark, organic-rich, often waterlogged surface layer (a black mucky soil) that sits above a permanently frozen subsurface layer (a frozen subsoil).
Usage
This term is used specifically in physical geography, ecology, and earth sciences to describe the distinctive soil of tundra biomes. - The presence of tundra soil limits the types of plants that can grow in the region. - Scientists study tundra soil to understand carbon storage in permafrost.
Advanced Usage
- Pedology (Soil Science) Context: In detailed classification, "tundra soil" is a general term often associated with Gelisols in soil taxonomy, where the defining feature is the presence of permafrost within the soil profile.
- The active layer of tundra soil thaws briefly in the summer, allowing for minimal biological activity.
Variants and Related Words
- Gelisols: The formal soil order in the USDA soil taxonomy system that includes soils with permafrost, encompassing tundra soils.
- Permafrost: The permanently frozen subsoil layer that is a key component of tundra soil.
- Active Layer: The top layer of tundra soil that thaws seasonally.
Synonyms
- Cryosol (a term used in some international soil classification systems).
- Arctic soil (a less technical, more descriptive synonym).
Related Phrases/Compounds
- Tundra soil ecosystem: Refers to the complete ecological community supported by this soil type.
- The tundra soil ecosystem is highly sensitive to climate warming.
Noun
- a black mucky soil with a frozen subsoil that is characteristic of Arctic and subarctic regions