Nanjing Jinchuan River 20 years of governance once reached the standard

September 3, Nanjing a heavy rain, the north of the city Jinchuan River water quality did not appear repeated. "The Jinchuan River has withstood the test throughout the flood season this year." Zou Peng, deputy director of the water Ecological Environment Division of Nanjing Ecological Environment Bureau, said with emotion that after nearly two years of efforts, the water quality of the Jinchuan River has improved significantly.

There is Qinhuai in the south and Jinchuan in the north. The Jinchuan River system covers the north of Nanjing, covering an area of nearly 60 square kilometers. As it flows through densely populated areas of the old city, the water system is complex, and the water environment management debts are many. In the past, it has been black and smelly for a long time, and it has been called by the provincial and municipal environmental protection department as "the most difficult river to control after the Yangtze River enters Jiangsu."

Knowing that there is a tiger in the mountain, the tiger mountain. Nanjing took the "river chief system" as the starting point, and municipal leaders took responsibility for it. Nanjing mobilized all levels and departments to fight the Jinchuan River flood control battle, and finally brought down the "black dragon" by tackling both the symptoms and root causes. Monitoring shows that from 2019 to the first half of 2020, the main water quality indexes of Baota Bridge section of Jinchuan River have basically stabilized above Class IV. Better water quality not only benefits the residents along the river, but also improves the environment of the waterfront plate and promotes the development of Gubei and Tiebei areas in Nanjing.

Water beauty bank green, Jinchuan River "back" to the residents

Compared to the ten-mile Qinhuai River, which is the "oar sound and lamp-shadow", the Jinchuan River is a lot less dramatic. The second largest water system, which runs through the main city of Nanjing, flows quietly from Xuanwu Lake through the roots of the city wall and through the streets and lanes from south to north. The water system is like an open "palm" and "branches and branches" permeate the north of the city.

Fishing enthusiast Lao Wei lives in the Lakeview Garden community. The moat in the north of the city, an important tributary of the Jinchuan River, turns a bend in front of his house. At 5:30 in the evening, Lao Wei came to the river on time, sat on the horse, pulled out fishing gear, pulled the bait, cast the line pole, and enjoyed his own evening fishing time. Now and then there were fishes in the river. "It doesn't matter if I can catch a fish. I just want to look at the water and feel good." "Said Old Wei.

Along the river bank, waterfront walk on both sides of the weeping willows, pine and cypress, stone, pavilion, stone steps scattered layout, every few steps have a pro level platform and the stone bench under the forest to rest, basketball court, fitness equipment, leisure square distribution of the riverbank, the public while exercising, while enjoying the beauty.

Walking to the inner Jinchuan River, the scenery is also everywhere. In the Dongguapuqiao reach, two air shield DAMS shaped like "small waterfalls" not only control the water level, but also create unique landscape pieces. The river is planted with a large area of submerged and emergent plants, forming an "underwater forest". On both sides of the river, copper money grass, windmill grass, and then force flowers layer upon layer, pleasing to the eye.

The river is smooth, the water is clear, the bank is green and the scenery is beautiful, so that the people living near the river are closer to the water. The Xinmen community of Zhongmen Street is adjacent to the Jinchuan River and is home to more than 5,200 households. "Early every morning, the river begins to be busy!" Wang Shujie, the director of the street and river office, hangs around the Jinchuan River all day and knows everything about it like the back of his hand: in the morning, people play tai chi and walk birds; In the afternoon, there are hiding in the shade to play cards, there are singing in the elderly activity room; At night, the children come out and chase and play by the river.

Green, beautiful environment, Jinchuan River has become the birds of the "paradise". In the Jinchuan River into the mouth of the pagoda bridge, "back to the dragon pearl" ecological island birds fly together, "most of them are mynas, and starlings, magpies, wax bills, anemone, hibiscus bird......" Baota Bridge street city management Department Wang Weidong said, "back to the dragon beads" is one of the "Jinchuan ten scenes", now become a net red card attractions, to take photos of the photography enthusiasts very much.

High level coordination, the whole basin water control effect is obvious

Time to push back ten years, no one will believe that the Jinchuan River can be cured.

From the Yangtze River, Jinchuan River to the moat, water once drove the early development of the north of the city. The railway was built near the water, people lived near the water, and workshops and factories gathered together. "Chimneys used to be the symbol of Drum North and Iron North." 'Factories, warehouses and shanty houses are scattered along the river,' said Tao Weiguo, 68, a riverside resident. Luo Ying, deputy chief engineer of Nanjing Water Bureau, remembers that 40 years ago, the Jinchuan River had lost its landscape function.

"Even in the 1970s, the neighborhood called it the 'gasoline river' and the 'soy sauce river.' From the Sanpai Lou to the central gate, industrial waste water, eating, drinking and dispersing, all pour into it." Memories of Tao Weiguo. "Until the river removed its' black cap ', a 'black dragon' could still be seen running into the Yangtze River from the entrance of the river. Nanjing Water Group engineering Department Li Xiaolong said.

Today, the Jinchuan estuary is similarly "distinct", only the Jinchuan River and the Yangtze River are "different" - the estuary water is more empty than the river water.

Remediation of the Jinchuan River began at the beginning of this century. Luo Ying remembers that around 2000, Nanjing began to bury the pipe along the Jinchuan River. Li Fang, deputy manager of Jiangsu Jinling Environmental Co., LTD., which operates the sewage treatment plant in the north of the city, recalled that the plant was completed and put into operation in 2003 to collect and treat sewage from the Jinchuan River basin. "But then there was a stage when the plant was in a 'feeding starvation' state and the running load couldn't keep up with the processing capacity." Luan Ho, head of the Water Management Section of Gulou District Water Authority, said that "There was conflict between the district and the sewage plant in the past. The sewage plant assessed the concentration of incoming water and the concentration cannot be too low. But the district also has a check on sewage flowing into the river. Although it is all for water control, it is difficult to reach an agreement in the end." Luan Ho attributed this to the control of water by many. Nanjing Water Bureau a researcher Zhu Xinghong bluntly, "is the assessment goal is not caused."

Later, the solution is to carry out a chess layout around the governance, "water integration" reform measures came out, fine rain and pollution diversion kicked off. Dong Wenliang, director of the second construction Division of Nanjing Municipal Construction Commission, recalled that the rain and pollution diversion project in the city's main urban area started in 2010 was just the "starting point". Nanjing formulated the rain and pollution diversion plan to speed up the progress and improve the problems of rain and pollution mixed connection and wrong connection.

And the Jinchuan River, it is the "hard wall" in the attack. Despite nearly 20 years of investment in governance, black odor was basically eliminated in 2017, but data showed that by the first half of 2018, the water quality of Jinchuan River was still poor Class V. "If memory serves, in January 2018, the ammonia nitrogen index for river water was above 20 milligrams per liter, while the environmental Quality standards for Category Ⅴ water require ammonia nitrogen levels of no more than 2 milligrams per liter." "Zou Peng said.

In order to strengthen the overall planning and root control of pollution, on the basis of the river chief system and the section chief system, Nanjing introduced the "leadership-linked responsibility system" in June 2018, in which the main leaders of the Municipal Party Committee linked the ecological collaborative management of the whole river basin, coordinated various sectors at a high level, conducted monthly dispatch, and directly "asked for medical treatment and prescribed medicine" with a problem-oriented approach.

"Dispatching by 'top leaders' is an important guarantee for promoting the implementation of territorial responsibilities and a key support for cohesion." Zhang Xiaofeng, director of the water Environment Division of Nanjing Water Bureau, recalled that after the spring of water control was further tightened in 2018, the Tiebei-Chengbei sewage system connection project, which might have taken several years to reach the ground, was completed in just one year, "making all the sewage in the Jinchuan River basin be collected."

At the same time, the physical examination of the sewage network is basically finished, and the transformation of the traditional rain-sewage combined flow system community is nearing the end... Under the treatment of both symptoms and root causes, Jinchuan River water has been comprehensively treated.

Water can rejuvenate the city, but also can become a permanent regret

The Jinchuan River, like a "green ribbon", connects the renovated plates in the north of the city, forming a "jigsaw puzzle" in which the city meets the water and revitalizes the city with water, revitalizing the whole north of the city. The Xuanwu District, where the South ten Li Changgou flows through, is lined with high-rise buildings called "Xuanwu Tiebei New City"; The Maigao Bridge in the second tributary of Changgou, ten miles south, built "Republic of China Old Street" along the river after the water environment was improved; North of the city moat along the Zhongfu Bridge, Wanguu silicon alley, Jinchuan silicon alley, finance University Science and Technology Park silicon alley along the river distribution.

A city with water is beautiful, and a home with water is spiritual. The Control Detailed Planning of the Central Gate Area of the Tiebei Area of Gulou incorporates the "Jinchuan River Scenic Belt" into the overall planning of urban construction. Overlooking the ruins of the secluded northern section of Nanjing City Wall, the high-rise CBD of the central gate of the "Third business Circle of the Old City" traversed by the branch of the Jinchuan River. In the south of the river, Nanjing Automobile and other old factories have been relocated, and the road network system has been rebuilt, forming the "Gubei Plate" with dense high-end communities in Nanjing.

"I never thought the Jincheon River could be so clear and popular." Jiang Chuntian, 78, is the first civilian river chief hired by the Gulou District Civilization Office. Since 2004, he has been running all over the Jinchuan River in the Gulou District with "iron feet". "If the covered tributaries of the Jincheon River are opened, the effect of water control and the urban water scene will be better." Jiang Chuntian said there are 10 Ming rivers in Zhongmen Street, five in Jiangmen Street, one in Shanxi Road and one in Hunan Road. "But there are still some rivers that have been covered by urban construction and become underground rivers. In such ditches and culverts, ancient pollutants still exist."

"The inner Jinchuan River system does have many rivers covered, such as the area from Peijia Bridge to Xiliuwan Park, Ninghai Middle School to Renhe Street, the 'disappearing river' is indeed a pity in the development of the city." Luo Ying said. Li Xiaolong struggled to recall the school song of Ninghai High School, which he used to sing when he was in school: By the shore of Jinchuan, along the road of Beijing, beautiful Ninghai is the place where we study and live. "The song is called Jinchuan Spring Rain, inspired by the Jinchuan River that runs through the campus. Then the river was covered by the playground, and the school song was almost forgotten."

Article source: Xinhua Daily