information about USDA soil taxonomy field
Field Hierarchy
Parent | |||
---|---|---|---|
Biology 34.8M papers | Geology 9.1M papers | Ecology 7.8M papers | Environmental science 7.7M papers |
Soil science 768k papers | Soil water 750k papers | Soil classification 8,996 papers | |
Current | |||
USDA soil taxonomy 1,624 papers | |||
Child |
Trends
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History