陕北位于黄土高原的中部。行政区划上包括延安、榆林两个地区,土地面积8万多平方公里。这里资源丰富,土层深厚,历史上曾经是林草丰盛、沃野千里的绿原。后来,土地受到不合理的利用,长期毁林毁草开荒,植被遭到破坏,严重的水土流失已成为发展农业生产的主要矛盾。粮食亩产只有百把十斤,人民生活相当贫困。不少地方的 Northern Shaanxi is located in the middle of the Loess Plateau. Administrative divisions, including Yan’an, Yulin two areas, the land area of ​​more than 80,000 square kilometers. Here is rich in resources, deep soil, history has always been rich in forest and grass, fertile land of thousands of miles of green. Later, the land was unreasonably used, long-term deforestation and wasteland, vegetation was destroyed, and serious soil erosion has become the main contradiction in the development of agricultural production. There are only about 100 tons of grain per mu and the people’s living conditions are rather poor. A lot of places