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1955年中央林业部曾公布了以造林工作为主要对象的全国林业区划草案,把全国分成了18个造林地区,其中陕西省的关中平原、陕北黄土地区、秦巴山地分别隶属于华北平原农田防护林区、黄土高原水源林区和华中山地水源林、用材林区。1959年省林业设计院制订了陕西省造林区划,将全省划分为10个造林类型区。由于时间较早,当时的资料有限,
In 1955, the Central Forestry Department released a draft national forestry zoning plan that mainly focused on afforestation, dividing the country into 18 afforestation areas. Among them, the Guanzhong plain in Shaanxi Province, the loess area in northern Shaanxi and the Qinba Mountains were subordinated to farmland in the North China Plain Shelterbelt, water source area in the Loess Plateau and water source forests and timber forests in central China. In 1959, the Provincial Forestry Design Institute formulated the afforestation zoning of Shaanxi Province and divided the province into 10 afforestation type areas. Due to the earlier time, the information at that time was limited,