科尔沁沙地位于内蒙古东部地区,主体处在西辽河下游干支流沿岸的冲积平原上。沙地分布于松辽分水岭以南、冀北山地以北、大兴安岭南段以东、第一松花江和东辽河以西的广大地区。北纬42°40′~45°15′,东经118°~124°30′,总面积约为42300平方千米。在行政区划上该区域包括通辽市、赤峰市东部、兴安盟南部,以及吉林省西部的通榆、双辽等。在大地构造和地貌区划上科尔沁沙地主要位于松辽台地向斜南缘和西辽河冲洪积平原地带,在气候上横跨中温带松辽亚湿润区和蒙东亚干旱区,植被、土壤为 Horqin sandy land is located in the eastern part of Inner Mongolia, the main body is located in the alluvial plain along the tributaries of the lower reaches of the West Liao River. Sandland distributed in the south of Songliao watershed, northern Hebei mountains, south of the Greater Khingan Mountains East, the first Songhua River and west of the East Liaohe River vast areas. Latitude 42 ° 40 ’~ 45 ° 15’, longitude 118 ° ~ 124 ° 30 ’, the total area of ​​about 42300 square kilometers. In the administrative divisions, the region includes Tongliao City, the eastern part of Chifeng City, the southern part of Xing’an League and Tongyu and Shuangliao in the west of Jilin Province. Horqin sandy land is mainly located on the southern margin of the syncline of the Songliao platform and the alluvial plains of the Xiliao River in the tectonic and landscape divisions. In the climate, it extends across the Songliaoya humid zone in the temperate zone and the arid zone in East Mongolia with vegetation and soil as