The Social Science Research Network has working papers for a variety of social sciences, including economics. I found this article about the economics of virtual worlds there a while ago.
The most scholarly thing I’ve found about involuntary parks is the Science article referenced in this Viridian note, which talks about the strip in Germany that once separated East and West. There are probably other articles around about re-wilding in landmined or otherwise abused areas.
While waiting for Exploitation, Conservation, Preservation to arrive, I found these glossaries and links for each chapter, and also some quizzes.