December 12 marks the 7th anniversary of the official opening of the South-north Water Diversion Project. In the past seven years, the water of the Yangtze River has continuously flowed into the Huai River, yellow river and Hai River basin. The water of the south came, and the people of the north bid farewell to the history of high fluoride water and brackish water. What is the water quality of the South-to-North Water Diversion Project? Is there enough water? How to make good use of this hard-won south water? Recently, the reporter visited the people and the construction site to feel the changes in "Nanshui".
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Water flows enough to irrigate without worry
Wang Xingfa, an old resident of the sixth village in Xinkou Town, Xiqing District, looked at the clear water flowing out of the water pipe, and the old Wang Le blossomed. The river water arrived at the household, and the water tank that accompanied the Lao Wang family for many years was laid off. Before the south-to-north water diversion was opened in the village, they had been drawing water from the well. However, a family of 6, with the elderly and children, consumes a lot of water, and they must store water in a water tank. "A big vat in a family, old and tall, how tall a person must be." Lao Wang said. Sun Jinshu, 75 years old this year, has been married to the sixth port village for more than 50 years. Recalling the earlier use of water, she still sighed: "Go to the river to fetch water, there are impurities in the water." Recalling those days, Sun Da Niang said that when the sky was just dark, she had to go out to fetch water, and she would carry two loads in one breath before it would be enough for a day. In the 1970s, the village was unified to drill a deep well.
A well that carries the memories of generations of villagers drinking water. However, the deeper the wells, the less and less groundwater, and some of the ground began to sink. In 2009, the village was connected to running water. Although there is no need to carry water, the water flow is not too large, and the family is reluctant to use it.
At the end of 2014, the clean water from the Danjiangkou Reservoir in Hubei Province reached the end of the Tianjin trunk line of the central line, distributed to the water plants in various districts, and eventually flowed into thousands of households, and the villagers of the sixth port village also drank the water of the Yangtze River.
The south-to-north water diversion project not only ensured everyone's drinking water, but also increased the amount of water replenished to the Ziya River and Haihe River in Tianjin after the water was opened, and as of last month, the total amount exceeded 1.4 billion cubic meters. Water resources are abundant, agricultural irrigation is guaranteed, the cost of farming has dropped, and the farmers in the village are deeply touched, and Lao Wang, 54 years old this year, is one of them. "When I was in my forties, I could only pump water from the river to irrigate vegetables, and the machine needed oil." Lao Wang calculated the account for the reporter, 15-20 yuan per hour of oil money, a day, the oil money used for watering the ground will cost one or two hundred. The account in Lao Wang's heart is more than ten years, he said that the land at home is far from the river, and the pipes alone must be paved for 300 meters. "It takes an hour to lay the pipes, and the labor cost increases." Take the cultivation of open-ground beans, in the past, due to the lack of water resources, the initial investment alone had to be more than five hundred pieces.
Not only is the cost of farming high, but every year when it comes to farming, irrigation water cannot keep up. "The lack of water has caused a reduction in production, and the reduction in production capacity has reached 60%." Lao Wang said.
Before the south-to-north water diversion, the village's agricultural production was mainly surface water and inbound water, and groundwater was supplemented. The sixth port village, located at the confluence of the Ziya River, the Daqing River and the Duliu River, has a total land area of more than 16,000 mu, of which the cultivated land area accounts for 12,000 mu. After the south-to-north water diversion was transferred, Tianjin passed through the Ziya River retreat sluice gate and replenished the ecological water with the water of the diversion river. At the same time, because the water source for production and domestic use is effectively replenished, a part of the water source is replaced to supplement the agricultural water.
Sixth Port Village, as the base of Tianjin's vegetable basket project, has been enriched from water resources, and the variety of vegetables has grown from the original 30 to 40 varieties to the current 50 or 60. Seeing that the planting environment in the village is getting better and better, the sixth port who works outside the village has also returned. Not only that, but many outsiders also went to the sixth port village to do agriculture.
Water resources are abundant, and the wasteland is alive. In March 2017, The Sixth Port Village decided to transform the planning of 1,000 acres of wasteland into rice fields and lotus fields, planting rice in spring and summer, and planting lotus roots in autumn and winter.
Guarding the "throat" of the central line project
There is an important node in the south-to-north water diversion project, that is, the West Montenegro Management Office in Baoding City, Hebei Province, where the water of the Qianli River is divided into two and one way north. The West Montenegro Management Office undertakes the arduous task of supplying water to Beijing, Tianjin and Xiong'an New Area.
Geng Baojiang is an engineer at the Management Office of West Montenegro, responsible for the maintenance and safety inspection of all nullahs and tanks and culverts along the management office. There are 14.15 km of nullahs under the jurisdiction of the West Montenegro Administration, follow these 14.15 km to see if the slopes are stable? Is it normal to transport water from a river? It became something that Geng Baojiang and his colleagues had to do every day.
On the day of the interview, the river channel to be inspected by Geng Baojiang is 3 kilometers, and a round trip is 6 kilometers, of which the slopes of some rivers are divided into three levels, And Geng Baojiang they need to be inspected at the first level, and it is common to walk more than ten kilometers a day.
Since coming to the South-north Water Diversion Inspection in 2011, Geng Baojiang has not returned home for ten years during the Spring Festival, and the post of duty during the New Year's Festival has become a habit of Geng Baojiang.
The West Montenegro Management Office is located in the throat of Beijing and Tianjin, and is also the only open channel section of the Tianjin trunk line, and the management task is heavy, especially during the flood season and ice period. It is said that "1929 does not shoot, three nine forty-nine ice walks", seeing that it is about to enter the ninth, the daily minimum temperature in the west black mountain village of Baoding, Hebei Province, has reached minus 10 degrees Celsius, in the words of the south-to-north water diversion people, at present, it has begun to enter the special stage of "ice water transmission". At this moment, Nanshui is rushing to Tianjin at an average speed of 44 cubic meters per second.
In addition to the daily patrol inspection, Geng Baojiang also pays attention to the ice in front of the watershed at all times. Recalling the scene on January 21, 2016, Geng Baojiang still remembers it vividly. On that day, a cold wave suddenly struck The Western Black Mountain. In just five or six hours, the temperature near the West Montenegro Administration plummeted to minus 20 degrees Celsius, and there was ice in front of the entrance gate to Tianjin.
The entrance gate formed an ice plug, and as the flow of water became smaller and smaller, everyone present had their hearts raised their throats. If the ice is not alleviated as soon as possible, once the flow is cut off, it will directly affect the drinking water of Tianjin citizens. "We immediately contacted the hot water truck from Baoding to the scene." Geng Baojiang said.
People cleared large chunks of ice floes from the river while spraying hot water on the floodgates. Slowly, the ice begins to melt and the amount of water flowing through the gate gradually recovers. "We found the ice at six o'clock in the morning, and by about ten o'clock in the morning, it was all lifted." Geng Baojiang told reporters that although the dangerous situation was handled in a relatively timely manner, such a situation must not happen again! It was also after that that the staff of the Management Office of Western Montenegro came up with ice-age water transfer measures in order to cope with such extremely cold weather. "If there is ice, fish it out in time." Not only that, but everyone also built a greenhouse downstream of the Tianjin trunk line entrance gate, where it is easy to freeze. At the same time, ice melting facilities were installed at the entrance gates.
Baodi will drink water from the Yangtze River before the flood next year
Since the south-to-north water diversion project was officially opened on December 12, 2014, it has withstood various difficulties and risks, achieved more than 2,500 days of continuous and uninterrupted safe water supply, and achieved water quality standards. In the past seven years, it has supplied 7 billion cubic meters of water to Tianjin, ensuring the water demand of the people, and also providing an important water source for the ecological replenishment of rivers and lakes and groundwater compression. This year, the South-to-North Water Diversion Baodi River Water Supply Project was included in 20 people's heart projects in Tianjin.
Wang Dezhi, the person in charge of the Baodi River Water Supply Project on the Central Line of the South-to-North Water Diversion Project, has been stationed in Baodi since the beginning of the project. The Baodi River Diversion Project is a supporting project for the South-to-North Water Diversion Project, which will divert water from the Erwangzhuang Reservoir to the Baodi Quanzhou Water Plant. It passes through Dabaizhuang Town, Erwangzhuang Town, Niujiapai Town and other townships, and the water transmission line is 35 kilometers. At present, the construction points of the 6 bidding sections are stepping up construction.
The Baodi River Diversion Project of the Central Line of the South-to-North Water Diversion Project undertakes the important task of ensuring the water supply of urban and rural residents in Baodi District. Therefore, Wang Dezhi and the participating units worked together to formulate plans and solve problems on the spot according to the key points, difficulties and node problems of the project.
At the end of September this year, when the construction unit entered the site, it found two more high-voltage line towers, and these two towers were just next to the place where the water pipeline was about to be lowered. The staff immediately contacted the property rights unit and learned that the newly built high-voltage tower was used for power supply in Baodi District and was not allowed to be constructed within its protective range.
One side is the power supply, the other side is the water supply, and none of them can be missing. The participating units summarized the on-site situation and communicated with the property rights units with the summary materials. "The other party gave us a reply to our opinion, saying that it was electrified in mid-October." Wang Dezhi said that according to their original plan, the construction was carried out at the end of October, and the construction period was half a month. In order to ensure the smooth progress of the Baodi River Water Supply Project, it is necessary to complete the construction of this section before the high-voltage line is energized, and at this time, the time left for everyone is only 10 days.
In the case of a shortened construction period, the number of construction personnel increased from 10 to 20. In order to complete the task as soon as possible, the construction personnel gave up the "Eleventh" and Mid-Autumn Festival holidays and worked shifts to carry out construction. However, the rain for several days has brought resistance to the construction. "As soon as the water level rises, it affects earthwork excavations and pipe installations. So we drilled a large well on the spot. "In this way, while pumping water from the well, work is carried out. With the joint efforts of everyone, it took a week to complete the construction. Finally, on October 8, the construction of this section was completed before the power was turned on.
Wang Dezhi has been engaged in the south-to-north water diversion project for 13 years, and the Baodi Yinjiang Water Supply Project is his sixth project since his career. From the quality officer to the project leader, Wang Dezhi has been running around with the project and rarely goes home. Wang Dezhi's family of three generations of water conservancy people, he said that his grandfather's generation of water conservancy construction conditions are very hard, often up the mountains to the countryside to the field, feet grinding blisters is a common thing, a pair of shoes can not wear a few days will rot. Grandpa's enthusiasm for water conservancy has influenced Wang Dezhi since childhood. He said that since he chose to be a water conservancy man, he must stand the test and follow in the footsteps of his grandfather and father. Because the water supply work is a heavy responsibility, it is related to the safety of drinking water for the people.
The length of the baodi river water supply project on the central line of the south-to-north water diversion project is 35 kilometers, and 12 kilometers have been installed so far, and 18 kilometers are expected to be completed by the end of the year. The entire project is expected to be completed by June 15 next year, when the people of Baodi will be able to drink the water of the Yangtze River.
Jinyun News reporter Ma Yutong