陕北的留淤土坝工作,早在一九四七年就已提出了,在党的英明领导下,在战争与严重灾荒之后的一九四九年即拨款试办。一九五一年以土地迅速退化的前哨——米脂县为重点,正式成立了绥德水土保持站,两年拨发贷款七亿元,现已发展到米、绥、吴、葭四县,目前已筑战土坝二百七十余道。且已有淤平之沟壑开始耕种,在群 The work of retaining the silt dam in northern Shaanxi was put forward as early as 1947. Under the wise leadership of the party, the experiment was allocated for funding in 1949 after the war and severe famine. In 1951, with the focus on the rapidly deteriorating outpost of Mizhi County, Suide Soil and Water Conservation Station was formally established and a loan of 700 million yuan was allocated in two years. Now it has developed into four counties of Mi, Sui, Wu and Sui, At present, more than 270 seismogenic earth dam projects have been built. And there have been silting gully started farming in the group