On December 6, 1985, the first phase of the project was completed. On December 6, 1985, the first phase of the project was completed. The first phase of the project, not only for the world's largest wind sand, water management and biological engineering, green milles long wall, laid a solid foundation, but also for the construction of our country's forestry has created a wealth of experience. The first phase of the project was to gradually form a green comprehensive forest protection system in the north of our country, roots wind sand and water loss, create a good ecological environment for the development of the national economy. The first phase of the project has been decided by the State Council in 1978, three northern regions, autonomous districts and directly under the governance of the city, 396 counties (according to the value of the flag), began to build