China News Service, Beijing, October 6th (Wu Jiaju) walked into the Tuancheng Lake Management Office of the South-to-North Water Diversion in Beijing, and the four characters "South-to-North Water Diversion" engraved on the Siyuan Monument came into view. While recording the remarkable achievements of the South-to-North Water Diversion, it also It reminds people to "drink water and think of the source".

  What changes has the South-to-North Water Diversion Project brought to Beijing?

What are the benefits?

The Siyuan Monument of the Tuancheng Lake Management Office of the South-to-North Water Diversion Project in Beijing.

Photo by Wu Jiaju of China-Singapore Finance

More water, better water quality

  Beijing is a super-large city with resource-based water shortage. The average annual water resource volume is 2.735 billion cubic meters. According to statistical analysis, the total amount of water resources in the whole region shows a decreasing trend.

  Since 1999, due to continuous drought, population increase and rapid urban development, the annual per capita water resources in Beijing is only about 100 cubic meters.

At the same time, the massive exploitation of groundwater to meet the needs of urban development once aggravated the shrinkage and degradation of river and lake ecosystems, and induced a series of ecological and environmental problems such as river cut-off and land subsidence.

  And on December 12, 2014, "South Water" came!

  The introduction of water from the South-to-North Water Diversion to Beijing has greatly changed the water resources situation in Beijing.

The middle route of the South-to-North Water Diversion Project can supply 1 billion cubic meters of water to Beijing every year. By the end of September 2022, Beijing has received more than 8 billion cubic meters of river water, and the annual per capita water resources in Beijing has also increased from 100 cubic meters to 150 cubic meters.

  At the same time, the South-to-North Water Diversion has greatly replaced local water sources, and the reserves of Miyun Reservoir have recovered rapidly, with a maximum water storage capacity of 3.579 billion cubic meters (October 2021), a new record since the establishment of the reservoir, an important surface drinking water source and a strategic water resource reserve base in the capital. effect is more prominent.

  In addition, river water has gradually become the main source of urban domestic water supply after entering Beijing. The safety factor of urban water supply has increased from 1.0 to 1.2. More than 15 million citizens in the city have been drinking high-quality water from the south. The quality of drinking water for residents has been significantly improved, and the hardness of tap water has increased from The previous 380 mg / liter fell to 120-130 mg / liter.

The open channel of the Tuancheng Lake Management Office of the South-to-North Water Diversion Project in Beijing.

Photo by Wu Jiaju of China-Singapore Finance

the river is revived

  Due to years of drying up, Beijing's mother river, the Yongding River and other rivers, have prominent problems such as the disappearance of river forms, the occupation of ecological space, and the obstruction of mobility.

  Thanks to the strong support of other external water sources such as the South-to-North Water Diversion and Wanjiazhai Yellow Water Diversion, coupled with the optimized allocation of local reservoir water, reclaimed water, rain and floods, etc., the Yongding River, Chaobai River and other key rivers that have been dry for many years have ushered in. opportunity for a full recovery.

  Among them, in response to the problem of the Yongding River, in recent years, Beijing has followed the overall plan for the comprehensive management and ecological restoration of the Yongding River, followed the work concept of "using ecological methods to solve ecological problems", and since 2019, "opening the way with water and leading the way with water" will make overall plans. Multiple water sources have rolled out five centralized ecological water replenishment work in the Beijing section of the Yongding River, with a total of more than 1 billion cubic meters of water replenishment.

  In 2021, Beijing will seize the favorable opportunity of abundant precipitation to conduct joint scheduling with multiple water sources, multiple basins, multiple paths and multiple objectives, and systematically implement long-term ecological water replenishment in the three major river basins of Chaobai River, Beiyun River and Yongding River, further expanding the return of groundwater. Replenishment area and surface water river network receiving area.

  Therefore, in the past 26 years, the five main rivers including Yongding River and Chaobai River have all reappeared as "flowing rivers" and connected to the sea. There are 46 new water channels, 786 kilometers long and 71 square kilometers of water surface. Many places have been dry for many years. The springs are surging again, and the mother river in Beijing, which has been dry for many years, is back to life.

  In 2021, healthy water bodies such as rivers and reservoirs in Beijing will account for 85.8%, the water ecosystem of the capital will be fully restored, and the urban and rural rivers and lakes will reproduce the vitality of clear water, green banks and beautiful rivers.

Ducks in Zizhuyuan.

Photo by Wu Jiaju of China-Singapore Finance

animals are back

  The water quality improved, the river revived, and the animals returned.

  In recent years, the biodiversity of Beijing has increased significantly, and rare waterfowl such as black storks, egrets, and black swans have become regular visitors and resident birds. There are more than 60 kinds of local fish "settled" in various waters.

  According to previous media reports, in 2021, the staff of the Tuancheng Lake Management Office of the South-to-North Water Diversion in Beijing found an injured grey crane, a national second-class protected animal, during the process of salvaging water plants. This is not the first time for the Tuancheng Lake Management Office. Discover national protected animals.

Since the opening of the South-to-North Water Transfer Project, due to the good water quality, less human disturbance, and the continuous improvement of the environment, the ecological environment of Tuancheng Lake has been getting better and better, and more than 20 species of birds have inhabited and reproduced.

  Now walking into Beijing Summer Palace, Yuyuantan, Zizhuyuan and other parks, birds can be seen everywhere, and the vegetation is lush.

Changes in the ecological environment attract animals and delight people.

  "Water" has changed Beijing. Drinking water and thinking of the source, Beijing's new look is inseparable from the South-to-North Water Diversion Project and the South-to-North Water Diversion people who stick to the front line of the project.

(Finish)