Statements (17)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:Soil | 
| gptkbp:alsoKnownAs | organic horizon | 
| gptkbp:color | dark brown to black | 
| gptkbp:composedOf | gptkb:organic_matter | 
| gptkbp:contains | decomposed animal material decomposed plant material | 
| gptkbp:foundIn | gptkb:wetlands forests | 
| gptkbp:function | nutrient cycling supports soil organisms | 
| gptkbp:location | top layer of soil | 
| gptkbp:partOf | soil profile | 
| gptkbp:rank | A Horizon | 
| gptkbp:thickness | varies depending on environment | 
| gptkbp:bfsParent | gptkb:Soil_Horizons | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | O Horizon |