Assertion: bog's peat | /r/HasAspect | high cation-exchange capacity
Facets:
value: due to its high organic matter content
type: CAUSE
value: very
type: DEGREE
Source sentences:
text: Peat has very high cation-exchange capacity due to its high organic matter content: cations such as Ca2+ are preferentially adsorbed onto the peat in exchange for H+ ions.