Assertion: soil's carbon | /r/ObjectUse | used as synonym
Facets:
value: for som
type: TRANSITIVE-OBJECT
value: often
type: TEMPORAL
Source sentences:
text: Although the C content of SOM varies considerably, SOM is ordinarily estimated to contain 58% C, and "soil organic carbon" (SOC) is often used as a synonym for SOM, with measured SOC content often serving as a proxy for SOM.