乌喇忒部迁徙考

17世纪初，爱新国的强盛，内喀尔喀五部的降服，察哈尔部的西迁创造了阿鲁蒙古诸部向大兴安岭南麓西拉木伦河流域迁徙的条件。爱新国巧妙地利用时局条件，将阿鲁蒙古吸引到自己的势力范围，安置在西拉木伦河流域，部署了反对察哈尔的防线。入清以后，为了防范外喀尔喀和卫拉特蒙古，清廷又将四子部落、乌喇忒以及茂明安等阿鲁蒙古部落整体迁徙到阴山一带，从而形成了清朝外藩内蒙古乌兰察布一盟。

An Examination of Migration of the Urat Mongols

Growth of power of Aisin Dynasty, submission of five groups regime, and immigration of Chahar Mongols to westward formed a conditions Siramuren River valley in south of the Hinggan Mountains in early 17^th century contemporary conditions them in the river valley Qing court immigrated Mountains, to Inner Mongolia of Khalkha Mongols to the Manchu for Am Mongols to immigrate to The Aisin Dynasty made use of the to absorb the Am Mongols including Urat group into the sphere of their influence, settling for organizing a line of defense against Chahar Mongols. After conquering China proper, Mongol groups of Durben Huhet, Urat and Muuminggan to the area along Yinshan take precaution to Outer Khalkha Mongols. The immigrated Mongols formed league of Uannchab in during the Qing dynasty.