South-to-North Water Diversion: "Number" says the changes in water diversion in 6 years

　　Hot spot tracking

　　On December 12, the first phase of the East Middle Route of the South-to-North Water Diversion Project ushered in the 6th anniversary of full water supply.

How much water has the project adjusted in the past 6 years?

What is the water quality?

How many people benefited?

What are the ecological and economic benefits?

In this regard, the reporter visited many sites along the project, and at the same time learned about the Ministry of Water Resources and other units.

　　A total of 39.4 billion cubic meters of water was transferred in 6 years

　　The east line project starts from the Jiangdu Water Conservancy Project in Yangzhou City, and uses the world’s largest group of pumping stations to "lift" the Yangtze River water north, east to Jiaodong, and north to Tianjin, benefiting thousands of people; the middle line project starts from the Danjiangkou Reservoir. The head gate of the fork canal diverts water into the canal, and the transition channel "Going to heaven" crosses the Yellow River. The water of the Yangtze River runs for thousands of miles to moisturize Henan, Hebei, Tianjin and Beijing.

　　Over the past six years, the first phase of the East-Zhongshan Route has transferred a total of 39.4 billion cubic meters of water.

Among them, the eastern route project transferred 4.6 billion cubic meters of water to Shandong and other places, and the middle route project transferred 34.8 billion cubic meters of water to Henan, Hebei, Tianjin, and Beijing.

　　It is worth mentioning that in May and June of this year, the first phase of the mid-line project designed a maximum flow of 420 cubic meters per second for the first time, verifying the project's large-flow water delivery capacity; the 2019-2020 water supply year will supply 8.62 billion cubic meters of water to Henan, Hebei, Tianjin and Beijing. Meters, more than 8.54 billion cubic meters of average planned water supply for many years proposed in the overall plan, marking that the first phase of the mid-line project will be effective within 6 years of operation.

　　The water quality of the middle route is better than that of class II, and all of the eastern route reaches class III

　　The east route project mainly used the Beijing-Hangzhou Grand Canal and its lakes along the line for storage and water transportation. At the beginning, the water pollution of these lakes and rivers was extremely serious, and some people were worried about the "Northern Sewage Diversion".

After full efforts to control pollution, the water quality of the east line has all reached Class III. Among them, Nansi Lake, known as the "soy sauce lake", has also jumped from inferior to Class III water.

　　The middle line project has realized "a channel of clear water flows northward."

95% of the Danjiangkou Reservoir's water quality at the source of the central line has reached Class I water, and the main water quality has been better than Class II standards for many years.

　　More than 120 million people directly benefited

　　The first phase of the East Middle Route has been in safe operation for 6 years, and it has been closely connected with the production and life of the people along the route.

"South Water" has become the main source of water for many cities along the route, directly benefiting more than 120 million people in the water area.

　　Among them, the east line project benefited about 58 million people, and the middle line project benefited about 69 million people.

For example, when "Nanshui" enters Beijing, in the central city of Beijing, 70% of a cup of tap water comes from "Nanshui".

At the same time, "South Water" was imported into Beijing's "big water tank"-Miyun Reservoir, which greatly increased its water storage capacity.

　　Ecological water supply exceeds 5.2 billion cubic meters

　　Since the first phase of the East Middle Route project was fully watered, the cumulative ecological water supply has exceeded 5.2 billion cubic meters, which has effectively restored the ecology of rivers and lakes along the line and achieved sound social and economic development.

　　The east line project ecologically replenishes 280 million cubic meters of water, and the natural ecology of many rivers and lakes such as Nansi Lake, Dongping Lake and Weishan Lake has been significantly restored. The spring water of Jinan in the spring city can continue to gush.

　　The mid-line project supplied 4.96 billion cubic meters of ecological water to 47 rivers in the receiving area.

The Hutuo River, Fuyang River, and Nanjuma River were "drinking" "Southern Water" and revived; the downward trend of groundwater levels in North China was effectively curbed, and some areas stopped falling and rebounded.

　　"Southern Water" is hard to come by, "Southern Water" is precious.

At the same time as the South-to-North Water Diversion, the first thing to do is to tighten the water-saving "faucet", and the two-pronged approach of water-saving and diversion is needed to better play the strategic and fundamental role of the South-to-North Water Diversion Project.