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Bottle gardens and aquarium ecospheres are partially or fully enclosed glass containers that are self-sustaining closed ecosystems that can be made or purchased. They can include tiny shrimp , algae , gravel , decorative shells , and Gorgonia .
The soils were selected to have enough carbon to provide for the plants of the ecosystems to grow from infancy to maturity, a plant mass increase calculated to be 20 short tons (18,000 kg). [56] The release rate of that soil carbon as carbon dioxide by respiration of soil microbes was an unknown that the Biosphere 2 experiment was designed to ...
Of course, in a self-sustaining ecosystem, a place for crops to grow would be set aside, allowing foods to be grown and cultivated. The larger the group of people, the more crops would have to be grown.
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The ideas of matrix planting are similar to aspects of permaculture, with its focus on using "guilds" of plants as part of "layered" or "stacked" garden designs, coming together to form a perennial polyculture that is largely self-sustaining. Permaculture also draws on the idea that in nature, ecosystems by and large have no trouble sustaining ...
Coral reefs are a largely self-sustaining ecosystem and up to 90% of the corals' nutrients may come from their symbiotic relationships. [7] The coral polyps and microscopic algae zooxanthellae in coral reefs have a symbiotic relationship wherein the algae provide nourishment to the coral polyps from within their tissue.
A temperature-controlled terrarium with plants inside. A terrarium (pl. terraria or terrariums) is a glass container containing soil and plants in an environment different from the surroundings. It is usually a sealable container that can be opened for maintenance or to access the plants inside; however, terraria can also be open to the atmosphere.
It is "self-sustaining" in comparison to systems which degrade much more quickly. The advantage of an aquarium closed with a lid (rather than a permanently sealed plug, which is found in the base of an EcoSphere) is that if the system goes out of equilibrium , the owner can remedy conditions and prevent a complete die-off.