# subsoil

> layer of soil under the topsoil on the surface of the ground

**Wikidata**: [Q681004](https://www.wikidata.org/wiki/Q681004)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Subsoil)  
**Source**: https://4ort.xyz/entity/subsoil


## References

1. Integrated Authority File
2. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=5557)
3. Freebase Data Dumps. 2013
4. National Library of Israel Names and Subjects Authority File
5. GF WordNet
6. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)