PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Corrective mathematical ???mixing??? equations derived from inputs including the weights, carbon mass, % carbon content, and '13C levels of roots and soil were developed to improve the accuracy of root weight and root '13C levels estimated from soil-contaminated samples.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usda.gov