Assertion: lignin's role | /r/HasProperty | elucidated
Facets:
value: fully
type: DEGREE
Source sentences:
text: In contrast, an increasing number of studies found that lignin derived compounds did not selectively accumulate in the refractory C pool of deeper soil horizons [280–283], suggesting that the role of lignin in long-term C sequestration remains to be fully elucidated.