China will optimize functional zoning to help localities to leverage their comparative advantages based on their defined functions, according to the government work report submitted on Thursday to the country's top legislature for deliberation.

Solid steps will be taken to create new advantages in large-scale development of the western region, to achieve new breakthroughs in the full revitalization of the northeast China, to accelerate the rise of the central region and to encourage faster modernization of the eastern region, the report said.