青海省湟中县的东尖岭山系,由连绵起伏的山梁、山湾和沟壑组成。解放前这里是童山秃领,沟壑纵横,水土流失严重,每遇暴雨泥水俱下,人畜遭殃,田地肥苗一冲三光,收成极薄,五料五缺,耕地面积年年缩小,产量一年不如一年,农民生活日趋贫困。当时群众中流传着这样一首歌谣:“东尖领、干 Qinghai Province Langzhong County East Ridge Mountains Department, by the rolling mountain, mountain bay and ravines. Before the liberation, there was a bald collar of Tongshan. There were serious soil and water loss. When rainstorms and muddy water werefall each other, livestock and poultry would suffer. The field fertilizer and fertilizer would have a red light and three crops and five missing crops. As a year, peasants living increasingly poor. At that time the crowd circulated such a song: "East tip collar, dry