permaculture
(noun)
 Any system of sustainable agriculture that renews natural resources and enriches local ecosystems.
Examples of permaculture in the following topics:
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Agricultural Settlements and Chiefdoms- The natives controlled fire on a regional scale to create a low-intensity fire ecology which prevented larger, catastrophic fires and sustained a low-density agriculture in loose rotation—a sort of "wild" permaculture.
 
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Pacific Coast Culture- This is what is known as permaculture, or any system of sustainable agriculture that renews natural resources and enriches local ecosystems.