A very informative new paper:

Social learning can benefit decision-making in landscape planning: Gartow case study on climate change adaptation, Elbe valley biosphere reserve  
Landscape and Urban Planning, Available online 8 February 2012
Christian Albert, Thomas Zimmermann, Jörg Knieling, Christina von Haaren

Highlights

► Participatory, scenario-based landscape planning may facilitate social learning. ► Social learning outcomes involve changes in participants’ understanding and skills. ► Learning outcomes can have benefits for subsequent decision processes. ► Challenges are issues of scale, personal involvement, and resource needs. ► Further research is needed in more case studies and on longer-term effects.