Northeast China Plain

It lies between the Greater and Lesser Khingan and Changbai mountains, ending at the coast at Liaodong Bay in the Bohai Sea.

The Sanjiang plain, at the confluence of the Sungari, Amur, and Ussuri rivers,[4] was originally a swamp known as the "Great Northern Wilderness", becoming a food-producing area after reclamation.

The Northeast Plain was inhabited by Sushen ethnic groups since the Zhou Dynastic period, up to and including the Jurchen people, who were semi-nomadic.

Huge areas are planted with wheat, corn, soybeans, rice, sugar beets, sunflowers, sorghum, and flax.

[4] There are very few trees on this landscape that have not been planted, typically poplars in long rows along roads, or on either side of the train tracks.