庆安县位于黑龙江省中部，小兴安岭南麓，呼兰河中上游，幅员面积８２０万亩，耕地面积１５３万亩，境内共有９条河流，万亩以上自流灌区６处。近年来，通过灌区节水改造，全县水田平均亩定额由原来的５５０立方米减少到４３６立方米，水稻单产也由原来的４５０公斤提高到５０ Qing’an County is located in the central part of Heilongjiang Province, south of Xiaoxing’an Mountain, middle and upper reaches of Hulan River. It covers an area of ​​8.2 million mu and arable land of 1.53 million mu. There are 9 rivers in total and 6 self-infusing irrigation areas of over 10,000 mu. In recent years, through water-saving transformation in irrigation districts, the average mu area of ​​paddy fields in the county has been reduced from 550 cubic meters to 436 cubic meters, and the yield of rice has also been raised from 450 kilograms to 50