soil classification systems
narrower: Soil Taxonomy
broader: soil science
preferred label: سیستم‌های رده‌بندی خاک @fa
type: Concept

Soil Taxonomy
preferred label: رده‌بندی خاک @fa
type: Concept
broader: soil classification systems

soil science
preferred label: علم خاک @fa
type: Concept
narrower: soil classification systems