ریخت‌شناسی
type: Concept
preferred label: morphology @en
related: تفریق افقی

خاک‌زایی
type: Concept
preferred label: pedogenesis @en
related: تفریق افقی

خاک
type: Concept
preferred label: soil @en
related: تفریق افقی

تفریق افقی
type: Concept
broader: تفریق
preferred label: horizon differentiation @en
related: افق
related: ریخت‌شناسی
related: خاک
related: خاک‌زایی

تفریق
type: Concept
narrower: تفریق افقی
preferred label: differentiation @en

افق
type: Concept
preferred label: horizon @en
related: تفریق افقی