直隷
The sparse population of the Qing Empire's northeastern borderlands facilitated the annexation of the so-called "Outer Manchuria" (the regions north of the Amur and east of the Ussuri) by the Russian Empire, finalized by the Treaty of Aigun (1858), and the Convention of Peking (1860). In response, the Qing officials such as Tepuqin (), the Military Governor of Heilongjiang in 1859–1867, made proposals (1860) to open parts of Guandong for Chinese civilian farmer settlers in order to oppose further possible Russian annexations. The Qing government subsequently changed its policy, encouraging poor farmers from the nearby Zhili Province (the present-day Hebei) and Shandong to move to and live in Manchuria, where one district after another became officially opened for settlement.