2NLC academia ancestral land architecture archive Asia biodiversity Cambodia campus cities citizenship civil society climate change communal land community finance constitution cooperation customary ecosystems education EFN erosion GIZ green spaces gully housing human rights indigenous rights informal settlements infrastructure journalism land land delivery land reform Laos lecture liberation livelihoods methods murd namibia national land conference natural ecosystems nhag NMT open source opportunities Opuwo outreach partnership peri-urban planning public outreach qualitative research rural sdfn Southern Africa urban urbanisation