Area: Shejia Town, belonging to Changyuan City, Henan Province, is located in the northern plains of Henan Province, Changyuan, slip County, Puyang, the three counties and cities at the junction of the area under the jurisdiction of 55 square kilometers, a total of 56,400 acres of arable land, with a total population of 65,000 people. Ding Luan town, belonging to Changyuan City, Xinxiang City, Henan Province, is located in Changyuan County, 12 kilometers north of the town, east and Fangli Town as a neighbor, northeast of the Shejia Town, north of Slide County adjacent to the area of 49 square kilometers, a total of 51,000 acres of arable land, with a total population of 53,000 people.
Landforms: Shejia Town, the vast majority of the soil for the sandy, green sandy, with a small amount of silt, two together, Ding Luan Town, the terrain is flat, west of the civilization ditch, the three main ditches, east of Ding Luan highway ditch, branch, bucket ditch 21.