Soak it up: China’s ambitious plan to solveurban flooding with ‘sponge cities’


Can the might of the Chinese governmentovercome complex needs and investor disinterest to deliver an ambitiousprogramme to save China’s 450 million urban inhabitants from floods?


Flooding causes more economic, social andhumanitarian damage than any other natural disaster and has affected 2.3billion people over the past 20 years, according to research from the Global Resilience Partnership. China has been particularly affected. Thisyear saw the worst floods in the country since 1998. In July 150 people were killed incentral and northern China after intense rainfall.

根据GlobalResilience Partnership机构的研究,比起其他自然灾害,洪水引发了更多的经济,社会和人道主义破坏,过去20年来已经影响到了23亿人口。中国受到的影响尤其巨大。今年中国遇到了98年以来最大的洪水。7月份,在强降水后,中国东部和北部共有150人死亡。

Anunprecedented scale


In December 2013 President Xi Jipingannounced a national plan to combat flooding in China’s cities– inhabitedby 450 million people. “He said that during the upgrade of urban drainageinfrastructure they should make it a priority to retain valuable waterresources and to utilise the natural system to achieve drainage, to establishnatural retention, natural infiltration and natural purification – like asponge city,” says Zhao.


Initially 16 cities were selected as pilotsfor China’s “sponge cities” programme, but eventually it will be rolled outnationally. Designers will concede to the wisdom of nature to ensure water isabsorbed when there’s an excess: instead of water-resistant concrete, permeablematerials and green spaces will be used to soak up rainfall, and rivers and streamswill be interconnected so that water can flow away from flooded areas.


The ambitious project is being funded bycentral government (15-20%), local government and the private sector. Thecentral government is giving eachcity 400m yuan (£46m) a year for the first three years. In return, 20%of the chosen cities must be constructed to a sponge city standard by 2020, and80% by 2030. All of the pilot cities need to have completed the pilot areaconstruction by 2017.

这个雄心勃勃的计划将由中央政服(15-20%),地方政服以及私人部门一起出资建设。前三年中央政服将给每个城市每年4亿元。作为回报,被选城市中的20%必须在 2020年前建成海绵城市的标准,另外80%在2030年。所有试点城市必须在2017年前完成试验区域建设。

The sponge city programme takes inspirationfrom low impact development in the US, water sensitive urban design inAustralia and sustainable drainage systems in the UK.


But nothing at this scale has ever beenattempted before. “The sponge city programme is more comprehensive andambitious,” says WenMei Ha, head of the China water management team at Arcadis,an international urban consultancy which was appointed to this plan by thegovernment.



来源: http://www.ltaaa.com/bbs/thread-414854-1-1.html

Roland Gilmore 14h ago

On behalf of special corporate interests,U.S. politicians made the People’s Republic of China the greatest manufacturingpower on earth and halted the traditional annual rise in wages of working menand women in the developed world. Now China is showing the rest of world thatsustainability policies can drive economic growth. Sadly, successive UKgovernments have wasted time and opportunity to take the lead in developingthese new technologies.


closedmirror 23h ago

We also need sponge-countries to absorbChinese expansionism.


shanshuitianqi closedmirror 22h ago

Oh dear, there had to be one didn't there.And here you are.
Yes, a few uninhabited outcrops of rocksand reefs claimed by China in 1947 and shared in that claim today by littleTaiwan. No genocide, no ethnic cleansing, no indigenous folk rounded up andleft to fester in paltry reservations.



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