Legal basis: Article 4 of the Land Administration Law of the People's Republic of China, the state practices a land use control system. The state formulates the overall land use planning, defines the land use, and divides the land into agricultural land, construction land and unused land. Strictly restrict the conversion of agricultural land into construction land, control the total amount of construction land, and implement special protection for cultivated land. The agricultural land mentioned in the preceding paragraph refers to the land directly used for agricultural production, including cultivated land, woodland, grassland, farmland water conservancy land and aquaculture water surface. Construction land refers to the land for building buildings and structures, including urban and rural residential and public facilities, industrial and mining land, transportation and water conservancy facilities, tourism land and military facilities; Unused land refers to land other than agricultural land and construction land. Units and individuals using land must use the land in strict accordance with the purposes determined in the overall land use planning.