a vast territory with a sparse population
It is a Chinese idiom, Pinyin is d à Ku à NgR é nx à, which means a big place and few people. It comes from the book of Han, geography records II, written by Ban Gu of the Eastern Han Dynasty.
Idiom usage
It refers to many places but few people
Examples
Fifteen miles away, it's called Jieshan. It's the place where heroes come and go in the green forest. (Feng Menglong, Ming Dynasty, Volume 21)
The origin of Idioms
Ban Gu of the Eastern Han Dynasty wrote in geography records of the Han Dynasty: "the customs are quite different, the land is wide and the people are rare."
Chinese PinYin : dì kuàng rén xī
a vast territory with a sparse population
dress in the coarse hempen cloth black. pī má dài xiào