Green development

The Yunfu-Maoming Expressway, traverses the mountains on the land of western Guangdong, connecting Guangdong and Yunnan provinces closely. It is a green belt among the mountains.

The Expressway, which is co-undertaken by CCCC First Harbor Engineering Co., Ltd., is an important passage connecting western Guangdong and even Guangxi to the Pearl River Delta region. It is also the first batch of typical demonstration projects for green highway construction in Guangdong Province. The total length is about 130 kilometers, with forest parks, ecologically controlled areas, and drinking water source protection areas along the route.

According to the construction design and preliminary investigation, there are a large number of native trees in the area and these precious tree species have grown for decades or even hundreds of years. In order to protect the local natural environment, the project team has always adhered to the environmentally friendly concept and made many attempts and efforts.

In the early planning phase, the project team protected these precious trees in line with the tenet of "zero damage and strong restoration". They decided to temporarily remove these large trees and move them back after the project is completed, which can not only protect precious species, but also quickly improve the ecological effect of the project. Considering that most of the leaves of subtropical vegetation fall off in autumn, which is also the peak period of root growth, the project team chose to transplant trees in autumn, so that the roots could grow first and then leaves. The technicians had investigated, registered and numbered the native trees and ancient trees within the scope, and complete the migration according to the "trees" conditions. Nearly 20 kinds of trees are classified. For banyan trees suitable for transplanting, only the main root is kept; for old trees that are not suitable for transplanting, the soil balls are digged out to protect the roots and improve the transplanting efficiency. Finally, more than 2,300 trees were successfully transplanted in the temporary base of about 60 acres.

The project team mobilized three watering trucks to spray water in the blasting area in advance to reduce dust for vegetation. Combining slope protection engineering and green ecological restoration, the project team had protected the green ecological concrete sprayed with mixed flower seeds and grass seeds. Within three months, the vegetation coverage rate reached 90%, and the engineering protection measures were coordinated well with the landscape.

So far, more than 2,300 trees have been replanted along the expressway, like a green belt. At the new expressway opens to traffic, the surrounding environment remains green and same as before.