Artificial Lakes: An Environmental Threat to Chinese cities
On October 18, 2012, in Zhengzhou, after two years of construction work and 265 million US dollar of direct investment, workers started directing water from the Yellow River into a huge crater of 5.6 km2. The water is changed four times a year, which represents 90 million m3 of water per year, and 1 / 600th of the annual flow.
In Xi’an, 28 new lakes have been announced (at a cost of 1.6 billion USD), and Harbin announced its plans for 18 of them. Around 70% of the Yellow River’s annual flow is used for human activities (over 30% is the estimated rate leading to a risk of dryness). Artificial lakes are a way to make cities attractive and increase the value of the land, despite the size able environmental, financial and social impact.
For more details see: Worldcrunch