RIYADH: The board of directors of Prince Mohammed bin Salman Royal Reserve Development Authority has announced the launch of an integrated development management plan in the reserve, the Saudi Press Agency reported on Thursday. This plan is a roadmap in line with international standards, covering the environmental, economic, social, tourism and cultural aspects of the 24,500 square kilometer reserve. This area contains 15 unique ecosystems, from the hills to the reefs, in the northwestern part of the Kingdom.