“皇居南迁”与东晋永和三年梁、益、荆三州政区边界调整

The Research on the Capital Location and the Adjustment of Administrative Boundary in Jin Dynasty

永和三年,桓温平蜀之后,东晋系统调整了梁、益、荆三州政区边界:通过将巴西、梓潼、宕渠三郡"配隶"益州,设立晋寿郡,使梁、益二州政区边界符合"山川形便"之势;通过将巴东郡移属荆州,以"犬牙交错"原则重新厘定了荆、益二州边界。东晋对于梁、益、荆三州边界的重新调整,导源于"皇居南迁"之后"树根本于扬越,任推毂于荆楚"的政治地理形势。此次调整,在很大程度上,被同样定都建康、立国江左的南朝所继承。

After Huan Wen(桓温)eliminated Cheng Han(成汉)in the third year of Yonghe, Eastern Jin Dynasty systematically adjusted the administrative division of the western prefectures. The adjustment of administrative division stems from the change of the political geographical pattern. In detail, the Eastern Jin Dynasty transferred the Baxi County(巴西郡), Zitong County(梓潼郡), and Dangqu County(宕渠郡)to Yizhou(益州). At the same time, the government transferred the Badong County(巴东郡)to Jingzhou(荆州). The adjustment not only built three lines of defense, but also prevented the rebellion of Yizhou. In the large part, the adjustment was inherited by the Southern Dynasties.