Assertion: biome's soil | /r/HasProperty | permafrost
Facets:
value: largely
type: DEGREE
Source sentences:
text: A thick layer of ice lies just below the shallow soil (permafrost) all year around, and trees cannot penetrate it to anchor their roots.
text: It’s a layer of permanently frozen soil called permafrost, which lies about 25 to 95 cm underground.
text: The soil in the Arctic is largely permafrost or soil that remains frozen year-round, leaving only a thin surface layer of thawed soil in summer for plant roots to grow in.
text: In the tundra biome, there are no deep root systems because there is permanently frozen soil (permafrost) prevents plants’ roots to continue growing longer and thicker.