Permafrost
Perennially frozen layer of soil below the surface in tundra.
Year introduced: 2015
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Subheadings:
Tree Number(s): G01.311.820.500, G16.500.275.157.718.500, G16.500.275.815.500, N06.230.124.531.500, N06.230.600.500
MeSH Unique ID: D065946
Entry Terms:
- Permafrosts
- Permafrost Soil
- Permafrost Soils
- Soil, Permafrost
- Soils, Permafrost
- Permafrost Region
- Permafrost Zone
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