Main forms of sustainable agriculture, in their relation to markets and levels of biodiversity. Not the ideal of each, but how they seem to be now. Translated from Guzmán-Casado et al., 2000.
Reflecting upon this figure in Sevilla-Guzmán's book on agroecology I came up with the concept of "post-partum spirituality". The basis and principles of permacuture come from natural science, biogeography and the likes, the spiritual aspects that the movement tries to develop seem to be independent and post-hoc additions, that do not really flow into the making of permaculture.