noun
zonation; zonal distribution
Technical term in ecology and geography for the arrangement of organisms or features in distinct bands or zones, often along an environmental gradient.
海岸の生物の帯状分布を調査した。
We investigated the zonation of coastal organisms.
標高による植生の帯状分布がはっきり見える。
The zonal distribution of vegetation according to altitude is clearly visible.
Compound of 帯状 (taijō, 'belt-shaped, zonal') and 分布 (bunpu, 'distribution').