1957年5月到8月间,笔者参加中国科学院所主持的“黄河中上游水土保持综合考查队”,在陕北洛河流域地区,进行了三个多月的野外工作。今仅将洛在河西侧地区,白水——甘泉间沿线所见有关黄土地貌方面的材料整理论述如后。这一论述,就区域面积来讲,仅只是这次工作地区的一小部分;同时这一材料也没有经过同队工作同志们的讨论,如有论述错误之处,由笔者负责。 From May to August 1957, the author participated in the Comprehensive Expeditionary Team of Soil and Water Conservation in the Upper and Middle Reaches of the Yellow River, hosted by the Chinese Academy of Sciences, and conducted field work for more than three months in the Luohe River Basin in northern Shaanxi. Now only Luo in the west side of the river, Baishui - Oasis along the line of information on the loess landform materials discussed below. This discourse, in terms of area, is only a small part of the work area. At the same time, this material has not been discussed with the comrades working in the same team. If the erroneous points are discussed, it is the author’s responsibility.