景观实验：邯郸园博会“清渠如许”，邯郸 / 景观

 

几十年来，钢铁和煤矿等重工业的需求和发展造成了这个城市的缺水与污染。为促进城市的绿色发展，邯郸获得了河北省第四届园林博览会，即邯郸园林博览会主办资格。通过层层筛选，土人设计很荣幸赢得了邯郸园博会的设计竞标，受托设计这个原本遍布煤灰、垃圾和固体废物的325公顷“废地”。

 

For decades, the city Handan suffered water shortages and pollution caused by the demands and impact of heavy industry, including steel and coal. As one part of its green development campaign, the city won the competition to host Hebei Province’s 4th garden expo——the Handan Garden Expo 2020. The landscape architect won the design competition and was commissioned to design the overall landscape, which covers 325 hectares on a site that formerly was primarily used for dumping coal ash, garbage and other solid wastes.

 

 

 

“清渠如许”的设计属于邯郸园博会的设计亮点，占地10.4公顷的梯田旨在展示基于自然的途径在废水净化和固体废物回收方面的潜在力量。该场地原本为城市垃圾和污染物堆成的20米高的小山，毗邻20公顷的退化湿地。万幸的是，设计前调查表明，现场没有有害物质对未来游客没有潜在的健康风险。

 

The Wastewater Purification Terraces were designed as one part of this grand show. Covering an area of 10.4 hectares, the terraces are intended to be a demonstration of the potential power of nature-based solutions for cleaning wastewater and recycling solid waste. The site is a 20-meter high mound, made of urban waste and debris, and is adjacent to a degraded wetland of 20 hectares. A pre-design site survey indicated that there are no hazardous materials on site and therefore no potential health risk for future visitors.

 

 

设计共应用了三种类型的湿地系统：1）自由水面台地（FWST）系统；2）潜流台地（SFT）系统；3）沉淀与氧化系统，并排列了五种净化组合进行观察。净化后的水汇集到邻近的湿地，帮助退化的湿地生态系统恢复。设计由木栈道系统链接各观察点、净化平台和构筑物，以便于收集数据和营造沉浸式的景观体验。

 

Three types of wetland systems were designed: (1) the free water surface terrace (FWST) system; (2) the subsurface flow terrace (SFT) system; and (3) retention pond systems or oxidation ponds. Altogether, five combinations of the three wetland types were designed for observation. The cleansed water is then discharged into the adjacent wetland to help restore the degraded wetland ecosystem. A network of boardwalks connecting observation points, platforms and pavilions was designed to allow data collection and provide an immersive landscape experience.

 

 

收集的数据可以直接帮助学生和专业人员了解水修复的自然过程，并分析变量与性能之间的相关性，以指导未来的设计实践。每天来自当地水处理厂的15000吨预处理废水被净化，这有助于恢复20多公顷的湿地系统，与传统水处理工艺相比，每年预计节省100万千瓦的电力。最终一个城市垃圾场已经成功转变为一个可以享受悠闲生活的景观实验基地，同时让游客亲眼目睹污染物（包括氯离子和其他独特颜色的矿物）带来的视觉冲击。

 

First-hand data has been collected that is helping students and professionals understand the natural water-remediation process, and the correlations between design variables and their performance are being analyzed to guide future design practice. Each day, 15,000 tons of pre-treated wastewater from the local water treatment plant is cleansed. That is helping to restore the 50-acre adjacent wetland, and save 1.0 million KWH of electricity per year compared to conventional water treatment processes. Meanwhile, an urban dump has been successfully transformed into an immersive living landscape experiment that helps visitors see pollutants (including chloridion and other uniquely colored minerals) in a visually striking manner.

 

 

 

 

 

首席设计师：俞孔坚
设计人员：王书芬，秦玥，张帆，刘春辉，陈萌萌，郭佳，李子轩，孙华，陈素波，孙陶，罗京晶，刘嘉琪，史育玉，顾海宁，刘杰，陈曙光，张要刚，阮甜子，周一男，何俞轩，何选宁，彭英豪

 

Project name: The Handan Wastewater Purification Terraces
Project location: Handan City, Hebei Province, China
Size: 10. 4 Hectares（26 Acres）
Designed: March 2019；Built: September 2020