Daiyanmenguan water storage project

Why did xuanxiu get resettled in Danjiangkou?

Because planners worried about pollution, they closed many of the industries lining canals and reservoirs. These included the mainstays of Danjiangkou’s economy: fish farming and turmeric processing. The result has been high resettlement costs and a reduced tax base. Li Xuanxiu is one of those resettled.

Will a water project solve North China's water shortages?

In north China as a whole, water demand is forecast by the government to reach 200bn cubic metres by 2050. The two parts of the water project built so far would cover just one-eighth of that. In short, the project would not solve north China’s water shortages even if it were working as planned. But it is not.

Does China need a water conservation project?

In 2015 a study in Nature magazine by Jon Barnett of the University of Melbourne found that China did not need the project. It could be self sufficient, he argued, if it saved water and cut pollution. To give credit where it is due, the government has started to increase water prices to discourage waste. The project is playing a role.

Does China need a water recycling project?

The land ministry says that half the groundwater in the north China plain is too dirty for factories. In Europe 80% of water in industrial processes is recycled. In China the share is half that. In 2015 a study in Nature magazine by Jon Barnett of the University of Melbourne found that China did not need the project.

Does coal mining affect groundwater consumption in the North China Plain?

It is not affected by intense groundwater pumping in the North China Plain because the aquifer underneath our study region is disconnected from the aquifers in that plain 34 (Supplementary Discussion). The impact of coal mining on groundwater consumption is also shown to be small 35.

Can reservoir storage be used to manage trade-offs between environmental demands and river temperature?

Reservoir storage volumes were subsequently linked to a one-dimensional reservoir temperature model, enabling simulations to evaluate how environmental storage could be used to manage trade-offs between downstream environmental demands and river temperature objectives.