Bill Mollison invented the theory of permaculture, which is designing gardens as ecosystems to be self-sustaining and organic, which is one approach to landscape design.
There is a series of four short films Mollison made which study permaculture in various climates. The most interesting for me was designing them for regenerating inner-city sites as community projects. The system also works for water purification/waste treatment projects.
I'm not sure where you can get the videos, but Mollison is Australian/Tasmanian.