China News Service, Jinan, June 11 (Reporter Li Xin) In recent days, the temperature in Jinan has soared to above 35 ℃. The high temperature has caused the Jinan Springs to "shrink", and the groundwater level of Baotu Spring has been continuous. It fell below the red warning line of 27.60 meters in 5 days and faced the crisis of stopping spraying.

  On June 11, the water level of Baotu Spring was 27.52 meters, which was another 7 centimeters lower than on the 10th. Since the first fall below the red warning line on June 7, the water level has "broken red" for 5 consecutive days, setting a record of the earliest water level falling below the red warning line for the first time in nearly four years.

  "Spring City" Jinan has the reputation of "springs are the best in the world". There are more than 640 famous springs in the area, the most famous of which are 72. Among them, Baotu Spring, where the emperor Qianlong of the Qing Dynasty in China was named "the first spring in the world" The most prestigious. The groundwater level of Baotu Springs is also often regarded as the scale of the climate and hydrological environment in northern China.

  On March 30, 1976, the Baotu Spring had the first stop of spray because the groundwater level was below 26.98 meters. The longest stop spray was recorded after 926 days. On September 6, 2003, Baotu Spring, which had stopped spraying for 548 days, resumed flowing again, and it has continued to flow for 16 years and 9 months.

The picture shows the Baotu Spring, the "first spring in the world" in the early spring. (Information) Photo by Li Xin

  The most direct factor that affects spring spouting is rainfall. The steaming weather with high temperature and little rain is the "natural enemy" of the spring group. Each year from October to June of the following year is the dry season of Jinan spring water. Thirsty" period. The reporter found in the Baotu Spring Scenic Spot that the water of the "Sangu Spring" was calm, and it was already difficult to see the scene of "the water wheel is surging".

  The reporter consulted the Jinan Urban and Rural Water Authority's Baotu Spring groundwater level data in the past five years and found that 27.52 meters was the second lowest water level in the same period in five years. On June 11, 2017, the water level was the highest water level, reaching 27.95 meters, and the lowest was 27.37 meters in 2016. . The water level of Baotu Spring fell below the orange warning line of 28.00 meters for the first time since March 16 this year. Since then, it has been under the orange warning line. It has been 88 days as of today.

  According to the Jinan City Rainwater Information System, since this year, the cumulative precipitation in Jinan City has averaged 168.4 millimeters, 37.9 millimeters more than the same period of the previous year and 95.7 millimeters more than the same period of 2019. The staff of Jinan Urban and Rural Water Affairs Bureau said that the groundwater level of Baotu Spring was in a state of decline during the dry season, and it was normal to fall below the warning line. In order to slow down the trend of the water level of Baotu Spring, Jinan City has adopted a series of spring preservation measures in recent years, such as ecological water replenishment, combating private groundwater harvesting and increasing artificial rainfall.

  According to the "Jinan City Emergency Plan for Maintaining Spring Water Spilling", when the groundwater level of Baotu Spring drops to 27.60 meters, Jinan City will issue a red warning and start the level I emergency plan, including reducing the intake of 100,000 cubic meters of water in the groundwater source of Jinxi Increase the water supply of Yuqing Lake Reservoir by 100,000 cubic meters per day, etc. The relevant departments will also increase the recharge source of Wohushan Reservoir to 400,000 cubic meters per day.

  The weather forecast shows that in the next three days, some parts of Shandong will have high temperatures exceeding 35°C. From the night of the 12th to the day of the 13th, the weather in the southeast of Shandong and the peninsula will be overcast with light rain, local moderate rain with lightning, and the northwest of Shandong. The weather in Luzhong area is cloudy and overcast with local thunderstorms or showers. However, Jinan was not favored by this rain, and it will remain hot and dry in the coming days. (Finish)