Hefei Eighteen Lianxian Ecological Wetland Flood Storage District Project opened on the 16th to the first domestic first in China

Da Wan News On September 16, the Water Ecological Repair and Governance Project of Chaohu Lake Basin, Anhui Province, the Eighteen Lianyu Ecological Wetland Flood Storage District Project was started in Hefei. As the first domestic ecological wetland flood storage area, this project is one of the national 150 major water conservancy projects, and it is also one of the projects that focus on the construction of the Ministry of Water Resources and Anhui Province this year, with a total investment of 970 million yuan.

"When the flood is coming to threaten the safety of the city, the function of the flood storage area is enabled; when there is no flood in the usual year, the role of ecological wetland cultivation and purifying the water quality of the lake into the lake." The relevant person in charge of the Hefei Municipal Government said. After the ecological wetland flood storage area project is completed, through the improvement of the flood, the complete drainage system in the puppet, the reinforcement of the dike and the construction of the Baozhuang Wei project, it can provide stagnation places for the flood of the Nanjing River Super Standard. Chaohu has excessive floods and master the initiative of flood control. At the same time, through the combination of wetlands and ecological agriculture, it enriches biodiversity, improves the stability of the ecosystem, and takes into account the function of water quality. This project is of great significance to promote the comprehensive governance of Chaohu and the construction of ecological civilization in Anhui and the implementation of the Yangtze River Protection strategy.

The area of ​​the eighteen union is 27.6km2, and the total wetland area is 25.95km2. The main construction content of the project is divided into two parts: flood storage area construction and ecological wetland repair. The design flood storage library capacity is 109 million m3, and the area of ​​ecological wetland is 13.6km2. Among them, the construction project of the flood storage area includes one new (retreat) flood gate, 7 renovation and new drainage pump stations, and the reinforcement of the outer river and Baizhuang dyke; 216.4hm2, marsh wetland 339.9hm2, forest grass wetland 783.2HM2, etc.

It is reported that the Nanyu River passed through the city, which is the "Mother River" of Hefei, and it is also the rivers with the most difficult governance in the lake to enter the lake and the last section of the national examination section. Essence The Shibaidianyu is located on the northwest bank of the east bank of Chaohukou and the northwest coast of Chaohu, with a total area of ​​27.6km². During the large water in 1991, 2016, and 2020, in order to alleviate the pressure of flood prevention in the area around the Chaohu Lake, Eighteen United The dykes are actively breaking the embankment flood storage. After the large water in 2016, Hefei City planned and constructed the Eighteen Lianxian Ecological Wetland, and included it into the National Pilot Project of the "Water Ecological Repair and Governance of the Chaohu Lake Basin". Implement the third phase of wetland repair project. In July 2020, the Water Ecological Repair and Governance Project of Chaohu Basin in Anhui Province -the eighteen Lianyu Ecological Wetland Flood Storage Area was included in the 150 major water conservancy projects in the country. In August 2022, the feasibility study report of the project obtained the development and reform of Anhui Province Commission for reciprocity.

Dahui News reporter Liu Ye

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