News of Water Resources Department of Jiangsu Province [Xinhua Daily] Beauty lies on the banks of Qinhuai River.
In December, the Qinhuai River is still shuttling, with beams and columns carved on both sides, and the wonderful scenery of "oars and lights at night beside Qinhuai" dispels a lot of winter chill. This 110-kilometer-long "Mother River" of Jinling City supports the profound heritage and sustained prosperity of Nanjing.
Qinhuai River flows through nine administrative regions of Nanjing and Zhenjiang, with a drainage area of 2,684 square kilometers, and is known as "small drainage area, great guarantee". "During his inspection in Jiangsu, General Secretary of the Supreme Leader emphasized that the protection of urban ecological environment must be placed in a more prominent position in building a harmonious and symbiotic modernization between man and nature." Zhang Jiaxue, director of the Qinhuai River Water Conservancy Project Management Office in Jiangsu Province, who manages two water conservancy hubs, said that in the past few years, the management office has adhered to the guidance of party building, driven the red engine to focus on the "clear water defense war and river and lake protection war", implemented normalized ecological water transfer, and strengthened the long-term management and protection of rivers and lakes, which has effectively guaranteed the stable and good water quality of Qinhuai River and Nanjing urban areas, and the rivers and lakes have fully recovered, contributing to the Qinhuai power for the green development of the basin.
Party building+initial heart, ecological hydration for 15 years, gathering together to "clear the river and meet Qinhuai"
The hour hand is set back to February 11th this year. The Qinhuai Xinhe Pumping Station of Qinhuai River Management Office of Jiangsu Province started the ecological water replenishment operation after the COVID-19 epidemic. This is the first batch of provincial water conservancy projects that Jiangsu water conservancy system took the lead in dispatching and running, which is of great significance to ensuring the ecological security of river basin water during epidemic prevention.
The epidemic situation is grim. In the case of insufficient boot personnel, the management office immediately put party flag on the front line of operation and took the lead in taking up his post in party member, Ning. "It is always said that party member should play an exemplary and leading role, and it is of great significance to participate in the anti-epidemic water supply operation in this special period." On the same day, the reporter rushed to the scene, and party member Li Chenxiao, a young man on duty, said with a smile.
The reporter saw that, driven by three large-scale horizontal axial flow pumps, the Yangtze River water was continuously replenished into Qinhuai New River through the flow channel, and the noise of the unit in the factory building was as high as 95 decibels, which made ordinary people feel headache after staying in this environment for 20 minutes. The operating personnel on duty not only had to overcome the influence of high decibel noise, but also patrolled and recorded the water level of the well, the temperature and pressure of the unit every hour to ensure the normal operation of the water supply and drainage system of the whole pumping station.
Since 2005, the ecological water replenishment of Qinhuai River has been implemented for 15 years. In the past five years, the water has been pumped to 2.5 billion cubic meters, exceeding the storage capacity of 400 Xuanwu lakes. The indexes of pH value, dissolved oxygen, ammonia nitrogen, permanganate and total phosphorus in the water ecological assessment sections of Qinhuai Xinhe and Qiqiaoweng have been stably controlled in the normal range, which has promoted the water ecological environment of Qinhuai River basin to enter a benign development track.
"In recent years, the management office has established a normalization mechanism for ecological water replenishment in Qinhuai River, and the ecological water replenishment has changed from sporadic and seasonal scheduling work to normalization and year-round routine work." Zhang Jiaxue said that the normalized ecological water replenishment has made the first-line dispatching work more frequent and more important. Therefore, the management office set up an ecological water replenishment operation support team with party member as the main part, and at the same time carried out the research on ensuring ecological water level dispatching and the preliminary work of Qinhuai Xinhe Hub reconstruction and expansion project to explore and improve the ecological support capacity of water conservancy projects.
Party building+innovation, the first "ecological service station" to fight the battle against floating objects on the water.
While actively running water, the management office actively protects water. On September 25th this year, the "Wudingmen Water Control Project Ecological Service Station" was officially unveiled. This is the first ecological service station in the provincial water conservancy system. It adopts the mode of combining mechanical and manual forces to carry out long-term management and protection of more than 30,000 square meters of water in the upper reaches of Wudingmen Gate, and completely closes the east gate of floating objects entering the main urban area of Nanjing.
"This year, due to factors such as high water level flood discharge, temperature and project scheduling in flood season, the situation of large-scale accumulation and large-scale drift of various floating objects on the water surface of Wudingmen Gate has been frequent." Liu Jianhua, who is responsible for the salvage of floating objects on the water surface, said that in order to solve the problem of aquatic plants salvage and disposal as soon as possible, the management office, on the one hand, deployed elite forces from all over the place to salvage floating objects in turn every day through high-power salvage boats, on the other hand, purchased a 150-ton heavy aquatic plants baler to reduce the weight and volume of floating objects through large-tonnage compression and improve the efficiency of outbound transportation. This year’s salvage data shows that the maximum daily salvage capacity of the ecological service station is 145 tons, which is equivalent to the carrying capacity of two freight trains.
"It is the unshirkable responsibility of the water conservancy department to clean the river and maintain the water environment. The establishment of an ecological service station is a long-term mechanism to ensure the water environment and ensure water safety, which requires long-term cooperation and joint efforts of all parties." On the day the service station was unveiled, Zhou Ping, chief engineer of the Provincial Water Resources Department, made a special trip to the scene. At present, while doing a good job in salvage operations, the service station regularly inspects the upstream river, grasps the amount of floating objects in time, and urges the management units along the line to strengthen supervision and promote the ecological protection of river linkage.
Wang Xiulian, who lives in the nearby Zhazha community, can’t help feeling: "My family lives by the river. When the weather is hot, my wife doesn’t even dare to open the window. Now, the weeding work of the management office has never stopped, the river is clean and tidy, and egrets pass by the river from time to time. We often go for a walk by the river, which is very comfortable. "
Party building+heart, Shijiu Lake Gucheng Lake reappears the scenery of smoke and waves
This year, Shijiu Lake, the "mirror of the sky" and "Swan Lake", has been frequently searched by CCTV and the Internet. This provincial lake, located at the junction of Lishui District and Gaochun District in Nanjing, Anhui Province, and dangtu county District and Bowang District in Maanshan City, Anhui Province, has attracted many netizens to punch in with its unique charm of clear water. As a liaison unit of provincial rivers and lakes, in recent years, the management office has been keeping a close eye on the goal of "building a healthy ecological lake model", assisting the provincial water resources department to strengthen the management of Gucheng Lake in Shijiu Lake, and has participated in and witnessed the ecological changes of the two lakes step by step.
"This year, we explored and established a drone intelligent patrol system in Gucheng Lake, Shijiu Lake, using drones to regularly take aerial photographs of the two lakes, and intelligently identify, process and analyze the original images, and trace back the illegal construction of the coastline, floating objects on the water surface, cyanobacteria, etc." Min Kexiang, the head of the river and lake department of the management office, told the reporter that aerial photography of drones effectively compensated for the problem of insufficient frequency of satellite remote sensing monitoring. For the suspected problems found in each inspection, the management office will report them through the smart lake patrol system and follow up the inspection and processing results throughout the process.
According to the grid division of Gucheng Lake in Shijiu Lake in 2019, the management office equipped 50 lake inspection system terminals for the relevant lake management and grid inspection personnel in the city and district respectively, organized and held a training course on lake grid management, and formulated and issued the Implementation Opinions on Grid Management of Gucheng Lake in Shijiu Lake. The management scope, real-time location, historical route and uploaded case information of each grid member are traceable, and gradually formed "network freeze, grid determination and responsibility determination". The reporter learned from the 2020 assessment meeting on the management and protection of Gucheng Lake in Shijiu Lake held by the management office that Gucheng Lake is basically in Class III water standard all year round, and the water body of Shijiu Lake is basically in Class III-V water standard all year round, and the water quality of the two lakes has been significantly improved.
Legends and allusions, write down the vicissitudes of Shicheng Nanjing; Rivers and lakes cast the soul of Jinling, the ancient capital. Zhang Jiaxue said that as an important department in the construction of water ecological civilization in Qinhuai River Basin, the management office will continue to work hard on the deep integration of party building and central work, lay a good job in the "initiative" of "one river and two lakes" industry management, and start a new journey of water conservancy modernization with the road of ecological water control with Qinhuai characteristics, adding color to beautiful Jiangsu.
Author: Wu Qiong