Jingsha Jiang

The main stem of the river, the Jingsha Jiang, rises in the dry eastern plateau of Tibet and has the lowest mean runoff per unit area of all the upper tributaries of 0.009 15 m³ km⁻² s⁻¹, compared to a mean flow of 0.021 m³ km⁻² s⁻¹ in the Mian Jiang in western Sichuan.