The construction of water conservancy infrastructure is related to the guarantee and safety of the people's lives. Recently, with the consent of the Anhui Provincial Government, the Provincial Department of Water Resources issued the "14th Five-Year Plan for Water Conservancy Development in Anhui Province", clearly implementing the construction of the "Anhui Water Network" project to achieve high-quality development of water conservancy. For Anhui, floods and droughts, especially floods, are the most threatening and destructive natural disasters.

Water conservancy projects are the material basis for preventing floods. With the continuous improvement of water conservancy project construction, Anhui Province successfully defended the Yangtze River Basin flood in 2016 and the Typhoon Wenbia in 2018, and effectively prevented the Yangtze River and the Chaohu, Huaihe, and Xin'an River floods in the same period in 2020, the largest The loss and impact of disasters were reduced to a minimum, and an overall victory was achieved in the fight against floods.

"Building a more complete flood prevention and security network" is the goal proposed in the "Plan" for flood prevention. It mentions that the governance of large rivers, major tributaries, and small and medium-sized river systems will be the framework, with the focus on urban flood prevention and safety, and the improvement of river basins, Regional urban and rural flood control and drainage infrastructure network.

Specifically, the "Plan" proposes that the flood control capacity of the main dikes of the Yangtze River, the Huai River and the Xin'an River will be comprehensively improved, the adjustment and construction of flood storage areas have been basically completed, the flood control and drainage capabilities of key waterlogging areas have been significantly improved, and the safety risks of existing dangerous reservoirs have been completely eliminated. . The flood and drought monitoring, forecasting, early warning, and dispatching systems have been further improved, and the ability to prevent and resolve major water safety incident risks has been further enhanced.

The construction of urban flood control system is even more related to the safety of people's lives and property. The recent serious casualties in some parts of the country have sounded the alarm for urban flood prevention and drainage. The "Planning" specifically mentioned that it is necessary to improve the urban flood control and disaster reduction system that is compatible with the urban economic and social development, and focus on solving the problems of the incompatibility of urban flood control capabilities with urban development requirements, and the overall low urban flood control and drainage capabilities.

The "Plan" clearly stated that five national key flood control cities including Hefei, four national key flood control cities including Huangshan, and other prefecture-level cities have been constructed to improve flood control systems, and carry out flood control projects for county towns and industrial parks. Carry out the revision of urban flood control planning in a timely manner, pay attention to the ecological construction and renovation of urban rivers and banks, and the protection and restoration of urban rivers and lakes, wetlands and other storage spaces, so as to improve the quality and stability of the urban water ecosystem.

Scientifically implement water transfer and water supply projects to create a "water supply security network"

Recently, at the construction site of the Shushan Pumping Station of the Shushan Hub of the River Diversion Project from the Yangtze River to the Huaihe River, there were many tower cranes and machines roaring. In the future, the water from the Yangtze River will be elevated here, crossing the Jianghuai watershed, and then exported to the north. It is expected that the water supply conditions will be available by October 2022. According to reports, the Shushan pumping station with a designed installed capacity of 60,000 kilowatts has a total pumping flow of 340 cubic meters per second, which is currently the largest mixed-flow pumping station in Asia. Since the start of construction in 2019, the project has invested a total of 1.26 billion yuan, and has successfully completed the foundation pit and motor layer pouring.

The Project of Diverting the Yangtze River to the Huaihe River is one of the 172 major water conservancy projects identified by the State Council.

Bring a canal of clear spring and clean water, build a beautiful landscape, and create an ecological economic belt... It can be said that the water diversion project that connects the Yangtze River and the Huai River is an "Anhui version" of the South-to-North Water Diversion Project, which will moisturize the rich water resources. The water-scarce northern Anhui area.

Anhui's water resources are "abundant in the south and short in the north". The temporal and spatial distribution of water resources is very uneven, which is not compatible with the regional distribution of arable land and population, and the carrying capacity of water resources does not match the production layout. With the development of water conservancy technology, “distant water can also quench the thirst of the near”, implement cross-regional water transfer projects to achieve optimal allocation of water resources.

In recent years, Anhui Province has built a number of water transfer and water supply projects. The impact treatment project of the South-to-North Water Transfer Project has been fully completed. The Huai-North Water Transfer Project will be completed and accepted in 2019. The project of diversion from the Yangtze River to the Huaihe River (Phase 1) has been accelerated, and large-scale irrigation district reconstruction and supporting project construction Full implementation. During the "Thirteenth Five-Year Plan" period, the Pishihang Irrigation District transferred 2.3 billion cubic meters of water to the city of Hefei; since the Huai-North Water Transfer Project was commissioned in 2020, a total of 27.47 million cubic meters has been transferred.

In the next five years, how will Anhui's water supply guarantee network continue to improve? According to Zhang Xiao, director of the Provincial Department of Water Resources, the "Planning" proposes to improve the water resources allocation system based on the backbone water diversion project, and build the main canal of the Yangtze River, the Huaihe River, and the Pihe River-the Chuhe River Main Canal as the horizontal channel to divert the Yangtze River to the Huaihe River. The Simashan River Diversion Project is a vertical "three horizontal and two vertical" water resources configuration backbone network for the whole province, realizing the north-south connection and the east-west mutual benefit.

At the same time, the implementation of the rural water supply guarantee project, the modernization and transformation of irrigation areas, the connection of rural water systems and the construction of beautiful villages, so that the rural people, especially the people in northern Anhui, can drink high-quality water.

"We will fully, accurately and fully implement the new development concept, adhere to the requirements of high-quality development, insist on overall development, closely follow the national development strategy and the actual development of Anhui region, and vigorously implement the masses in northern Anhui in accordance with the deployment of the provincial party committee and the provincial government. Drink better water projects to provide safe and powerful water resources support and guarantee for the high-quality development of Anhui." Zhang Xiao said.

Implement water ecological governance and restoration, and carefully care for water resources

Only by making great efforts to protect water resources and protect the water ecology, the beauty of "a river of clear water flowing eastward" will come to light. The "Plan" clarifies the specific goals of ecological management of rivers and lakes. Among them, it is mentioned that the river (lake) long system will be used as the starting point to strengthen the shoreline management and water ecological management of rivers and lakes, and accelerate the construction of ecological corridors with the Yangtze River, Huaihe River, Xin'an River, and Yinjiang-Jihuai River as the main line.

A batch of water ecological treatment and restoration projects will be implemented one after another. The "Planning" proposes that with the goal of achieving a healthy water ecology, implementation of Chaohu Lake, Shengjin Lake, Nanyi Lake, Baidang Lake, Chenyao Lake, Tianhe Lake, Tianjing Lake, Tuohu Lake, and Huainan and Bengbu city sections of the main stream of the Huaihe River, and Wohe , Grand Canal, Shuiyang River and other rivers and lakes ecological treatment and restoration projects.

At the same time, Anhui Province will also combine ecological protection requirements to build an ecological wetland flood storage area in Chaohu Lake, speed up the implementation of the Xin'an River water ecological restoration and management, implement river and lake water system connections according to local conditions, restore regional hydrodynamic conditions, improve water environment, and restore water ecology.

Keywords: infrastructure construction, infrastructure construction, infrastructure engineering news

Green water and green mountains are golden mountains and silver mountains. While emphasizing infrastructure construction, the issue of ecological protection cannot be ignored. During the "14th Five-Year Plan" period, Anhui Province will also strengthen the comprehensive management of soil erosion in key areas, the construction of ecologically clean small watersheds, and the comprehensive management of groundwater over-exploitation areas in accordance with the requirements of "protection and governance", and implement water system connectivity according to local conditions. Carry out pilot projects for river and lake ecological protection and management, and strive to improve the water ecological environment. Editor/Xu Shengpeng