Dongfanghong Reservoir is located in the northeast of Hailun City, on the Zhayin River, a secondary tributary of Hulan River, 28 kilometers away from the county seat. The control basin area is 500 square kilometers. Of which: 438 square kilometers of Zhayin River, and 62 square kilometers of the north and south river basins of the source of the Ja'er River. The total reservoir capacity is 1.62 billion cubic meters, which is mainly for flood prevention and irrigation, taking into account power generation, fish farming and comprehensive utilization of reservoirs for many years.