information about Unified Soil Classification System field
Field Hierarchy
| Parent | |||
|---|---|---|---|
Biology 36M papers | Geology 9.5M papers | Environmental science 8.1M papers | Ecology 8.1M papers |
Soil science 791k papers | Soil water 771k papers | Soil classification 9,162 papers | |
| Current | |||
Unified Soil Classification System 491 papers | |||
| Child | |||
Trends