Soil survey

https://www.wikidata.org/wiki/Q7554965

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
Current
Soil survey 5,146 papers
Child
National Cooperative Soil Survey 0 papers

Trends

Notes

History