China News Service, Beijing, September 15 (Reporter Chen Hang) Since the flood season this year (as of September 12, the same below), there have been 72 major rainfall processes in Beijing, with an average rainfall of 715 mm, 9 more than last year. This is 50% more than usual.

　　This is what the reporter learned on the 15th from the "precise dispatch, safety, and more water storage" special news briefing on water affairs.

Since the beginning of this year, the accumulated precipitation has been more than 50% more than the same period of the year.

　　The Beijing Municipal Water Affairs Department stated that from January 1 to September 15, the city’s accumulated precipitation was 790 mm, which is nearly 50% more than the same period in the previous year, forming water resources of 4.628 billion cubic meters, surface water of 2.11 billion cubic meters, and groundwater of 25.18. One hundred million cubic meters.

The average buried depth of groundwater in the plains of the city is 19.36 meters, which is 3.41 meters higher than before the flood. The largest recovery site is Pinggu Nandule River Groundwater Monitoring Station, 29.66 meters.

Compared with the same period last year, the groundwater level in the plain area of ​​the city has risen by 3.18 meters, which is 7.20 meters higher than the same period in 2015.

The city's groundwater reserves increased by 1.63 billion cubic meters.

　　At the same time, the city’s large and medium-sized reservoirs store 4.389 billion cubic meters of water, an increase of 1.348 billion cubic meters from before the flood.

Among them, the Miyun Reservoir stored 3.559 billion cubic meters of water, an increase of 1.196 billion cubic meters.

On August 23, the water storage capacity of Miyun Reservoir broke the highest record since September 16, 1994.

　　In addition, the construction of ecologically clean small watersheds will give full play to the ecological benefits of water and soil conservation.

The three defense lines of ecological restoration, ecological management and ecological protection constructed by measures such as closure and conservation, riverside construction and other measures effectively purify rainfall and sediment. According to preliminary statistics, the city’s existing soil and water conservation measures during the flood season conserve 3.384 million tons of soil, clear water and clean water. The effect of entering the river is remarkable.

Since the flood season, the average precipitation is 90% more than last year

　　According to the Beijing Municipal Water Affairs Department, the global weather is generally abnormal this year, extreme weather is frequent, and the flood control situation in Beijing is severe and complex, with heavy rainfall during the flood season and concentrated time and space.

The main rivers are generally flooded, and the reservoirs have obvious benefits of blocking floods and storing water.

　　Since the flood season, there have been 72 major rainfall processes in Beijing, with an average rainfall of 715 mm, which is 90% more than last year and 50% more than normal.

There were 6 heavy rains and above, including 2 heavy rains.

The Yongding River Basin is 551 mm, the North Canal Basin is 687 mm, the Chaobai River Basin is 834 mm, the Ji Canal Basin is 792 mm, and the Daqing River Basin is 745 mm.

Miyun Reservoir arrested a total of 1.33 billion cubic meters of floodwater during the flood season

　　It is reported that all water conservancy projects and ancillary facilities of Miyun Reservoir are operating well. Through overall planning and consideration of flood prevention and water storage, a total of 1.33 billion cubic meters of floodwater was intercepted during the flood season, and the maximum peak flow in the reservoir was 2,540 cubic meters per second (at 20 o'clock on July 12). The peak reduction rate was 100%, and the storage capacity was created. The record high since the library has successfully completed the work goal of "guaranteeing safety and storing more water". (over)