abstract:Longjiang () is a county in Qiqihar in the northern province of Heilongjiang of the People's Republic of China. It is the home of astronaut Zhai Zhigang.
Aihui, an important northeastern countyin Qing Dynasty, was the firstgarrisonspotof Hei- longjiangEight Banners, and was the first habitat of HeilongjiangGeneral.