Tsinghua Tongheng Urban Planning and Design Institute, a subsidiary of Tsinghua Holdings Human Settlement Construction Group, was named the principal award-winner of the international award at the British Association of Landscape Industries (BALI) National Landscape Awards 2019.

The award, announced at a ceremony in London on December 7, was for the institute's Wetland Park at the Huaifang Reclaimed-Water Plant project.

The Mayi Mountain Park, Oasis on the Qinghai-Tibet Plateau project - designed by Tsinghua Tongheng Urban Planning and Design Institute - also won a 2019 international award, which makes Tsinghua Tongheng a winner at the BALI National Landscape Awards for nine consecutive years with 16 awards, including seven principal international awards.

The project team of the Wetland Park at the Huaifang Reclaimed-Water Plant receives the Principal International Award of the BALI National Landscape Awards 2019, in London on December 7.

The project team of Mayi Mountain Park, Oasis on the Qinghai-Tibet Plateau receives an international award at the BALI National Landscape Awards 2019 in London on December 7.

Principal International Award-Winner 2019

Wetland Paradise on a Giant Rooftop – The Wetland park of Huaifang reclaimed-water plant

The wetland park of Huaifang reclaimed-water plant is the largest rooftop wetland park in China and also the first experimental design combining a wetland landscape with underground water treatment facilities. The site occupies 15.6 hectares, 12.8 of which are on the rooftop of the largest fully-enclosed underground reclaimed-water facility in China.

The design uses reclaimed water to create an artificial wetland on top of the treatment plant, to purify the water before it drains into the out-park drainage system of Beijing. The whole wetland park has become part of the water processing stage. The design simulates a natural structure, creating 103 different habitats. Terraced landforms have been constructed with net-mesh reinforced stone-gabion retaining walls and many different types of vegetation to incorporate the floodwater management system. A new form of lightweight fabricated steel-structure walkway was designed for the park, with stone-gabion retaining walls and some other lightweight construction materials for the low-load roof. An educational cabin and wooden walkway were also constructed.

The wetland park has brought social and ecological benefits to the city and is a paradise for animals and plants, demonstrating the harmonious co-existence of humans and nature.

International Award Winner 2019

Mayi Mountain Park, Oasis on the Qinghai-Tibet Plateau

Mayi Mountain Park is located in Ledu district, Haidong City, eastern Qinghai Province, with an average elevation of about 1,750 meters and an area of about 18.6 hectares. It is in the central mountain area of the Huangshui River alluvial valley, the largest tributary of the Yellow River.

The design of Mayi Mountain Park is based on the ecological restoration of the Huangshui River Basin. By making use of the water resources of the upstream tributaries and adopting low-cost, low-maintenance methods, the park deals with water diversion, water storage, sedimentation, purification, and backflow channel. The water system design of the park also makes it possible for rainwater collection, plant irrigation, and improvement of microclimate, thereby reducing soil and water loss in the upper reaches of the river and providing a comfortable park for citizens and a natural habitat for animals and plants. The Mayi Mountain Park has become an oasis on the Qinghai-Tibet Plateau.