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甘肃省泾川县茜家沟村,属黄土高原沟壑区。全村148户,731人,274个男女劳力,总土地面积5344亩。过去由于林木稀少,植被较差,水土流失严重,每遇暴雨,洪水漫流。大部土地,跑水、跑土、跑肥,多年平均侵蚀模数在8200吨以上。严重的水土流失,带来了广种薄收的恶性循环,土地利用极不合理。1974年前粮田面积一直在3800亩以上,占总土地面积的71％,形成单一的粮食生产,这样不仅多种经营开展不起来,粮食生产也上不去,多年来平均亩产不超过100公斤。
Qianjiagou Village, Jingchuan County, Gansu Province, belongs to the gully area of Loess Plateau. The village of 148 households, 731 people, 274 men and women labor, the total land area of 5344 acres. Due to the scarcity of trees in the past, the vegetation was poor and the water and soil loss were serious. Floods and floods were encountered in each case of heavy rainfall. Most of the land, running water, running earth, running fertilizer, the average annual erosion modulus of 8200 tons. Serious soil erosion has brought about a vicious circle of thin deposits and land use is extremely unreasonable. Before 1974, the area of grain crop has been above 3,800 mu, accounting for 71% of the total land area, forming a single grain production. In this way, not only diversified farming can not be carried forward but grain production will not go up. The average yield per mu has not exceeded 100 kg.