חלק chlq "divide, apportion" in Am 7:17 of Amaziah, the priest's land being apportioned to others.

חֵלֶק cheleq "portion, share" (especially of the promised land) which is surely the meaning in Am 7:4.

חֶלְקָה cheleqah "plot, portion (of land)" usually of agricultural land, in Amos twice at 4:7.