RIYADH: The board of the Prince Mohammed bin Salman Royal Reserve Development Authority has announced the launch of the integrated development management plan for the reserve, the Saudi Press Agency reported on Thursday. The plan is a roadmap in line with global standards that covers the environmental, economic, social, tourism and cultural aspects of the 24,500-square-kilometer reserve. The area in the northwest of the kingdom includes 15 different ecosystems, from mountain ranges to coral reefs.