Unified Soil Classification System

https://www.wikidata.org/wiki/Q905795

Field Hierarchy

Parent
Biology 36M papers	Geology 10.4M papers	Environmental science 8.8M papers	Ecology 8.1M papers
Soil science 806k papers	Soil water 783k papers	Soil classification 9,398 papers
Current
Unified Soil Classification System 489 papers
Child

Trends

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History