在近百年来有关中国东北民族与疆域的研究中 ,尤其近半个世纪的研究中 ,已取得了很大的成绩 ,获得丰硕的成果。改革开放以来 ,有关东北民族与疆域研究所面临的严峻的挑战 ,学界已取得共识。但由于种种原因与条件的限制 ,我们的研究还滞后于形势的发展需要 ,我们的研究还限于就 In nearly a hundred years of research on the ethnic groups and territories in northeast China, great progress has been made in the study of nearly half a century, with fruitful results. Since the reform and opening up, academics have reached consensus on the severe challenges facing Northeast Ethnic and Territorial Studies. However, due to various reasons and conditions, our research still lags behind the development needs of the situation. Our research is still limited to