Foodshed, popularized in 1929 by Arthur Getz, used the analogy of a watershed to describe “the area that is defined by a structure of supply.” According to Getz, the concept helps explain “where our food is coming from and how it is getting to us.” Inherent in the concept was the "need to protect a source, as well as the need to know and understand its specific geographic and ecological dimensions, condition and stability in order for it to be safeguarded and enhanced.” (http://kjpermaculture.blogspot.com/2008/01/foodsheds-and-food-circles.html)