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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > sustainability science and engineering > industrial ecology > closed loop systems
Natural Resources, Conservation, Environment > environmental sustainability > industrial ecology > closed loop systems
Preferred Term:

closed loop systems

Definition:
An ecological or industrial system in which energy and material are conserved.
Concept Schemes:
NALT Full
Broader Concept:
industrial ecology
Entry Terms:
  • closed systems
URI:
https://lod.nal.usda.gov/nalt/199649
Download this Concept:
RDF/XMLCreated 2013-05-29, last modified 2015-02-09