Permaculture Principles: Nature's Design for Our Living World

3. Obtain a yield

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Any good green system has to be able to feed itself, so an important mark of building permaculture is obtaining a yield. "You can't work on an empty stomach," says, and a successful system uses an element of competition to insure that the most well-adapted, best-fitting organisms go in the right places in the system. Getting useful rewards for the work that goes in will insure that the system has the legs to feed itself and live on.

Photo credit: Jean-Luc Toilet via Flickr