The German populations of these lands seem in Roman times to have been scanty, and Roman subjects from the modern Alsace and Lorraine had drifted across the river eastwards.
The small proportion of land tilled is due to many causes, among which paucity of populations is not the least.
The native populations of the Amur - Golds and Gilyaks - support themselves chiefly by fishing, when the salmon enters the Amur and its tributaries in dense masses.
The conquered populations were now transported to distant parts of the empire.
Alternatively, pick Ethos if you need to tackle mixed brome and black-grass populations, and want to get in early.