沟蚀已成为这个地区水土流失的主要形式最近,我到晋西地区的隰县、石楼、永和、大宁、蒲县、乡宁、吉县、临县、离石、中阳等十个县,调查访问了二十五个公社的三十个生产大队。这些地区属残垣和破碎丘陵区,沟壑面积占到总土地面积的百分之四十到五十。沟头前进、沟底下切、沟坡坍塌等沟蚀现象,已成为导致梁垣破环和滩地冲 Ditch erosion has become the main form of soil erosion in this area. Recently, I went to Xixian, Shilou, Yonghe, Daning, Puxian, Xiangning, Jixian, Linxian, Lishi, Zhongyang and other ten County, the survey visited thirty production brigades of twenty-five communes. These areas are ruins and broken hilly areas, gully area of ​​the total land area of ​​40% to 50%. Ditch forward, under the ditch cut, ditch collapse and other gully erosion phenomenon, has become the leading cause of Liang Yuan broken and beach red