Extreme floods and water shortages are some issues exacerbated by climate change in China. To prevent this, a landscape design house is advocating for 'sponge cities' by creating and expanding parks and ponds within urban areas.
, “giving full play to the absorption, storage and slow release of rainwater by ecological systems.”
Cities around the world are similarly trying to integrate “bioswales” along the sides of roads, protect remaining marsh areas to absorb water, and increase the capture of roof rainwater.In China, one demonstration park is located in the northeast corner of the city of Nanchang, southern China. In mid October, engineers were putting finishing touches on a lush, picturesque 126-acre park designed to cushion the impact of both floods and droughts.
Those guidelines were issued after massive rainfall and catastrophic floods in the city of Zhengzhou killed 398 people last summer. Floodwater inundated a section of the city’s subway, trapping hundreds of commuters. Rescuers flocked to the scene, but 14 people died in the subway disaster. Yu acknowledges there is an oversight problem. “Many of the cities just use it as propaganda — just to get a lot of money from the central government,” but then invest the funds in other projects.While problems implementing absorptive cities are worked out, China’s vulnerability to extreme weather is clear. A prolonged drought since July has dramatically shrunk China’s biggest freshwater lake, Poyang.
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