re-afforest vs re-afforestation

re-afforest is not a noun while re-afforestation is a noun.

Word	Noun	Adjective	Verb	Adverb
re-afforest	No	No	Yes	No
re-afforestation	Yes	No	No	No

re-afforest (noun)	re-afforestation (noun)
	the restoration (replanting) of a forest that had been reduced by fire or cutting

re-afforest (verb)	re-afforestation (verb)
reestablish a forest after clear-cutting or fire, etc.