“A very convincing synthesis and solid analysis has led to an integrated master plan.”
——2018 Awards Jury
中国城市建设研究院有限公司 分享了他们在2018年IFLA非洲、亚太、中东地区分析与规划类竞赛中获得优秀奖的作品——构建巢湖半岛蓝绿生态网络的总体规划。更多关于他们请至：CCUD on gooood
CCUD shared their works of IFLA 2018 AAPME analysis and master planning award of excellence——The Master Plan to Construct Water and Green Networks of Chaohu Peninsula. Appreciations towards CCUD for providing the following description
The site is located in Hefei City, Anhui Province, adjacent to the northern shore of Chaohu Lake, which is one of the five largest freshwater lakes in China.Endangered by lake-around construction and deteriorated by water contamination caused by overusing agricultural chemicals, Chaohu ecological system undergoes gradual collapse. Meanwhile, rainfall floods make a danger for newly-expanded towns and villages.The mission for us is to plan a major wetland park at the north shore in the hope of handling the contradiction between ecological protection and the transformation and development of traditional agriculture.
With domestic and agricultural sewage discharged, the area of wetlands shrink and the function of purification weakens in Chaohu Lake. Consequently, serious environmental problems arise, such as declining water quality and rampant cyanobacteria.
洪水威胁|Rainfall flood threat
Due to the increasing development of urbanization and uncontrolled land reclamation, a large size of wetland disappears. Correspondingly, the water catchment capacity drops. Villages and towns are under the threat of floods.
1.Complete ecological network: to integrate ecological patches into a whole and to establish a flexible water and green network.
2.Health: to recover the purification function of wetland.
3.Security: to expand rain and flood bearing capacity.
4.Livability: to build lake-nearby livable villages.
5.Impression: to impress visitors with a wetland town playing functions of science popularization.
水网识别|Water system identification
To identify puddles, fish ponds, lotus root ponds, canals and man-made reservoirs through GIS. Covert runoffs: to locate 15 water catchment areas into Chaohu Lake and covert runoffs according to terrain and slope direction.
▼水网识别，water network identification
With reference to floods in the latest ten years, the rainfall of 15 catchment areas is to be collected and analyzed.
a) to calculate the area of flood detention basin in need
b) to calculate the area of wetlands in need with reference to their rain water capacity
水系统规划|water system connected and purification
疏浚现有阻塞沟渠，构建水塘——沟渠湿地——末端湿地的三级水网，并最终排入巢湖。在中水厂出水口设置净化湿地，将巢湖水质作为目标水质，（近期四类、远期三类水质），计算得出需要新增净化湿地面积近期：51667 m2 ,161667m2，（按平均水深1.5M计算）。
a) to dredge blocked ditches
b) to build new ditch wetlands according to the location of potential runoffs
c) to weave the pool-ditch wetland-terminal wetland tertiary water network.
d) to improve Chaohu water quality, targeting at the forth-class water quality in the short term and the third-class water quality in the long term
e) to calculate the area of wetlands in expectation, respectively 51,667m² in the short term and 16,1667 m² in the long term（mean depth 1.5m）
▼水系统规划，water system connected and purification
生态廊道建立|Ecological corridor building
By observing egretta garzetta, the local indicator species , we identify Habitat patches via GIS.
a) we simulate the migration network by the method of minimum cost path.
b) we establish a comprehensive habitat network composed of patches, nodes and corridors with reference to an integration of current situation, recovery and prospects.
c) We identify currently-top ecological habitats and promote the expansion of reserves.
d) We identify prospective habitats and make recovery plans of fields and trees according to specific animals and plants.
▼绿网·白鹭迁徙廊道建立，ecological corridor building
We survey the location and area of land in use, with a particular focus on pollution-causing farming ways. To replace pesticide-involved industries with aquatic vegetable cultivation, ecological planting, tourism services and other new ecological industries.
To collect the area, number, size and location of 27 surrounding villages.
a) Considering the interaction between villagers and wetlands, we plan to remove villages located in habitat sensitive areas.
b) The villages located at the entrance and exit are upgraded to serve tourists.
c) With its folk houses transformed into popular science exhibition rooms and a wetland museum and other service facilities supporting, Xiaotianbu Village, together with other disappearing ones, will gradually develop into “a wetland town”.
1.Recovery of 262 hectares of wetlands.
2.Capacity to bear rainfall flood in the coming 20 years.
3.The third-class water quality in the long term.
4.10-hectare expansion of core ecological patches and recovery of 9 habitats.
5.7.02-kilometer ecological rebuilding of river course .
6.128-hectare replacement of polluting agricultural industries.
7.Income increase from 3,000 to 5,000 yuan per acre.
8.Significant improvement of refreshment facilities.
▼主要湿地区平面，main wetland site plan