Closed ecological system
Closed ecological systems or contained ecological systems (CES) are
The term is most often used to describe small, man-made ecosystems. Such systems are scientifically interesting and can potentially serve as a
In a closed ecological system, any waste products produced by one species must be used by at least one other species. If the purpose is to maintain a life form, such as a mouse or a human, waste products such as carbon dioxide, feces and urine must eventually be converted into oxygen, food, and water.
A closed ecological system must contain at least one autotrophic organism. While both chemotrophic and phototrophic organisms are plausible, almost all closed ecological systems to date are based on an autotroph such as green algae.
Examples
A closed ecological system for an entire planet is called an ecosphere.[2][3]
Man-made closed ecological systems which were created to sustain human life include Biosphere 2, MELiSSA, and the BIOS-1, BIOS-2, and BIOS-3 projects.[4]
In fiction
Closed ecological systems are commonly featured in fiction and particularly in
See also
- Biosphere – Global sum of all ecosystems on Earth
- Controlled ecological life-support system
- Controlled-environment agriculture – Technology-based approach toward food growing
- IBTS Greenhouse – Egyptian desalination project
- Ecology – Study of organisms and their environment
- Ecosphere – Planetary closed ecological system
- Ecosystem services– Benefits provided by healthy nature, forests and environmental systems
- Eden Project – Visitor attraction in Cornwall, United Kingdom
- MELiSSA – European Space Agency led consortium developing life support systems for space missions
- Space colonization – Concept of permanent human habitation outside of Earth
- Spome – Hypothetical matter-closed, energy-open life support system
- Terraforming – Hypothetical planetary engineering process
- Chang'e 4 – Chinese lunar lander & rover
- Space stations and habitats in fiction – Fictional depictions of space stations and habitats in fiction
References
- ISBN 0-415-29998-5.
- ^ "A Lexicon of the Spheres" (PDF). Oregon State University. Archived from the original (PDF) on 2016-10-18. Retrieved 2016-10-16.
- ^ "ESO 2 Science 11: The Ecosphere and the Ecosystems". Science Helpdesk.
- PMID 11540303.
- ^ "What is an EcoSphere? (Shrimp and Gorgonia coral)".
- ^ Westfahl, Gary (2005). "Space Habitats". The Greenwood Encyclopedia of Science Fiction and Fantasy: Themes, Works, and Wonders. Greenwood Publishing Group. pp. 736–737. ISBN 978-0-313-32952-4.
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