About: http://webisa.webdatacommons.org/405869191

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They can be soil covers (usually 1 to 2 feet of ???clean??? soil), hard surfaces such as pavement or concrete, or landscaped areas.
http://www.w3.org/ns/prov#wasQuotedFrom	njit.edu