The Supportive Effects of the New Eco community to the Realization of LID in China's Rapidly Urbanizing Region A Case Study of Wulijie New Town in Wuhan Lin Mo, Dihua Li Graduate school of Landscape Architecture, Peking University
The big picture During China's recent rapid urbanization process, more and more undeveloped zone or green areas have been affected by the disorderly development. The Land Use Transition of Beijing, from 1978 2007
The intensive land development has enormous impact towards the structure and function of existing landscape, especially the water system. The Shrinking Water System in Hangzhou
Shrunken waterbody Widespread impervious surface Aging urban drainage system Inner city waterlog
To see the sea in downtown Beijing Changsha Wuhan Xian Nanchang Chengdu
It is time for planners and developers to reflect on the conventional planning and construction process. What is the solution? LID provides a new vision.
A Pilot Research Program In June 2010, a real estate group came to us for a new eco town planning studies. We decided to take the chance to integrate LID into the planning process, and explore the adaptive LID strategies on community level in China. PACE HUST GSLA Turenscape Conceptual urban design Regulatory plan Planning studies Regulatory plan
Site Characterization Wulijie new town locates in the southeast suburb of Wuhan city in central China, around the middle reaches of the Yangtze River. It is some 30 km away from downtown, and the plot area covers 30.79 km 2, including 14 km 2 for construction.
Currently the site is mainly dispersed rural area, contains a large acreage of farmland and a dense water network that consists of vast ponds, ditches and small reservoirs.
Challenge water system The former regulatory plan before after
Challenge population Agriculture population Urban population Total Current 16,456 3,300 19,756 Future 5,756 24,000 29,756
Objectives Explore new development mode Protect water system Reduce land clearing Start integrated stormwater management Form new community Help farmers to adjust to new life Inspire communication between groups Convey LID values
Strategy 1: Strict control of land development
In order to reduce disturbance to natural system and avoid land waste, we try to convince the developer to adopt compact mode of community planning, encourage low rise but high density style, thus reasonably control the construction volume.
We demonstrates to the developers the economic advantages of compact community: beneficial to the division, sell and use of land; create more frontage, improve the value of the land and urban vitality; reduce long range commute.
Strategy 2: retain the agricultural landscape Paddy fields, lotus ponds, fishponds, small reservoirs and other agricultural landscapes are all important local vernacular heritages, and they can be valuable productive visual landscape in the future.
Through one of our existing successful project, we show the development the harmonious coexistence of built environment and agricultural landscape SJZU campus
Via reasonably retaining and reclaiming the original agricultural landscapes, turning them into new eco farms and rain gardens, we can not only reduce land disturbance, but also provide employment and recreation opportunities for the residents.
Strategy 3:change traditional water cycle pattern Make use of the water network and green space in the form of rain harvesting and regulating system to maintain natural rain process as far as possible. In this way, we believe the new community can get rid of excessive dependence on the urban drainage system and the water logging threat.
Strategy 4: promote community integration If we want them to care, we got to care for them first. The haunted house
mixed groups of residents encourage communication enhance ident ification and participation Friendly communication interface Community farm Flea market Community school
Summary Current trend: powerful developer Our role: to educate and influence Technology is easy to pick up, while mindset is hard to change. To plan is to negotiate.
Acknowledgment Thanks to MLA 2009 Dr. Qiao and Dr. Wang