On March 14

2014

General Secretary Xi Jinping proposed the water governance concept of “prioritizing water conservation

balancing spatial distribution

taking systematic approaches

and giving full play to the roles of both government and market”

among which balancing spatial distribution emphasizes the principle of balancing population

economy

resources

and environment. In 1935

Hu Huanyong

a geographer

put forward to divide the contrast line of China's population density

namely “Heihe-Tengchong Line”

which revealed the close internal relationship between humanity and land involving natural

economic

human and other factors. The “Heihe-Tengchong Line” is not only the geographical boundary of China's population

but also the ecological environment line. By summarizing and analyzing the unbalanced and inadequate regional development reflected by the “Heihe-Tengchong Line”

this article explores the path of harmonious development of the humanity

water and city

and proposes relevant measures to optimize the “Heihe-Tengchong Line” with the water governance concept of “spatial balance”

so as to boost Chinese path to modernization with high-quality water conservancy development.