I just discovered this cool series, Two Greedy Italians.
Two Greedy Italians is a BBC television series that first aired on BBC Two in the UK on May 4, 2011. The series sees the chefs Gennaro Contaldo and Antonio Carluccio travelling around Italy to see how society and food has evolved over the years.
Really though, they're trying to feed themselves like they did as poor post WWII boys, foraging or "borrowing" the ingredients for their incredible meals.
I've only watched the episode I've linked to below but I plan to watch them all. This episode has a cool permaculture slant. They are in the Alps and mention how corn and wheat wont grow on the steep slopes so they've grown chestnuts since the Middle Ages. This of course reminded me of the beginning of Tree Crops:
Chapter 2, The Idea.
"Why are the hills of West China ruined, while the hills of
Corsica are, by comparison, an enduring Eden? The answer is
plain. Northern China knows only the soil-destroying agriculture
of the plowed hillside. Corsica on the contrary has adapted
agriculture to physical conditions; she practices the soil saving
tree-crops type of agriculture."