closed ecological system


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closed ecological system

[¦klōzd ek·ə′läj·ə·kəl ‚sis·təm]
(aerospace engineering)
A system used in spacecraft that provides for the maintenance of life in an isolated living chamber through complete reutilization of the material available, in particular, by means of a cycle wherein exhaled carbon dioxide, urine, and other waste matter are converted chemically or by photosynthesis into oxygen, water, and food.
(ecology)
A community into which a new species cannot enter due to crowding and competition.
References in periodicals archive ?
The grand prize winners will receive an all expense paid trip to Columbia University's BioSphere 2, the largest closed ecological system in the world, located near Oracle, Ariz.
Volvo and Columbia University's BioSphere 2, the largest closed ecological system in the world, are sponsoring The Drive for a Healthier Planet program.