本文所涉及的“科尔沁沙地东北部地区”主要指,开鲁—扎鲁特旗(鲁北)—科右中旗(白音胡硕)以东,双辽—通榆一线以西,南抵西辽河,北至洮儿河的区域。行政区划分包括吉林省白城市、内蒙古通辽市北部三个旗县及兴安盟之一部分。按目前的考古文化分区的认识,科尔沁沙地东北部地区界于辽西、嫩江下游和第二松花江三个考古文化区 This article refers to the “northeastern Horqin Sandy Area” mainly refers to the Kai Lu - Zhalute Banner (Lubei) - Section Youzhong Banner (Bai Yinhuo Shuo) East, Shuangliao - Tongyu line west, west of the West Liaohe, north to wander river area. Administrative divisions include Baicheng City, Jilin Province, Inner Mongolia Tongliao City, north of the three counties and Xing’an League part. According to the current understanding of archeological and cultural zoning, the northeastern Horqin Sandy Area borders on the three archeological and cultural areas of western Liaoning, Nenjiang and the Second Songhua River