What's the noun for zonification? Here's the word you're looking for.
zone
(geography, now rare) Each of the five regions of the earth's surface into which it was divided by climatic differences, namely the torrid zone (between the tropics), two temperate zones (between the tropics and the polar circles), and two frigid zones (within the polar circles).
(ice hockey) Every of the three parts of an ice rink, divided by two blue lines.
(handball) A semicircular area in front of each goal.
(chiefly sports) A high-performance phase or period.
(basketball, American football) A defensive scheme where defenders guard a particular area of the court or field, as opposed to a particular opposing player.
(networking) That collection of a domain's DNS resource records, the domain and its subdomains, that are not delegated to another authority.
(Apple computing) A logical group of network devices on AppleTalk.
“A buffer zone is recommended in which no irrigating is done.”
zoning
(law) Legislative action for the purpose of regulating the use of property and the construction of buildings within the area under the jurisdiction of the legislative body concerned.
zonation
An arrangement or distribution of things into zones.
