Assertion: grassland's soil | /r/HasProperty | created
Facets:
value: usually
type: DEGREE
value: poorly
type: DEGREE
Source sentences:
text: When this process works on a loess that itself is rich in calcium, the world’s most fertile soils are created, the chernozems (A Russian term meaning black soil).
text: These dry grasslands occur in areas where the zonal vegetation is forest, but with soil that is usually shallow, poorly developed and unstable, and therefore does not allow tree growth.
text: When this process works on a loess (silt deposit) that itself is rich in calcium, the World's most fertile soils are created, the Chernozems (black soil).