source: Qilu Evening News
this year's government work report first proposed the concept of ecological city, water ecological civilization city, ecological garden city, forest city, environmental model city "five city LIAN". In October 2012, the head of the Ministry of water resources specially investigated Ji'nan for the construction of water ecological civilization, and formally confirmed that Ji'nan city in Shandong was the first pilot city of water ecological civilization construction in China. The construction of water ecological civilization in the provincial capital was carried out in an all-round way.
[b] rivers and lakes connected to the people's livelihood for the livelihood of the people's livelihood five water city [/b]
total investment nearly 50 billion after the completion of the water ecological civilization of what kind of city would be like? "The door of the river no longer have garbage." "Baotu Spring, black tiger spring and other famous springs must be kept gushing, making the characteristics of springs." "Can we drink spring water after the completion of the water ecological civilization city?" many people have heated discussions about this.
10, Zhang Tilun, deputy director of the Ji'nan Water Conservancy Bureau, told reporters in an interview that at present, the overall planning of the water ecological civilization city was in 2020, of which the pilot period was from 2013 to 2015, from 2016 to 2020 to improve the promotion period, and to form a new pattern of modern water conservancy development of "river lakes and lakes connected to the people's livelihood, five water balance spring city". Now it is the general goal of "spring, lake, river, water and Jing Mei".
in the creation of water ecological civilization city, this year, we have compiled and perfected the plan and implementation plan for the establishment of water ecological civilization city, and propelling the three major area ecological water system projects, carrying out the projects of multi water connection, the replacement of the groundwater in the eastern industrial area, the comprehensive renovation of the Yufu River and so on. Measures should be taken to ensure the continuous sprays of the spring water. Complete the interception and remediation of the 48 rivers in the urban area, and implement the direct discharge of sewage in the urban area.
Water Conservancy Bureau staff introduced that in recent years, great progress has been made in the water ecological construction. The key rivers in the Xiaoqing River and Lushan flood diversion have been carried out comprehensively. Some branch rivers have been dredged and polluted by sewage, and a number of centralized water purification plants have been built. The urban spring group has been built for 9 years, and the Daming Lake is reformed. Upgrade, expand the water surface, from "Park Lake" into "City Lake"; moat to achieve full line navigation.
but Ji'nan is still a typical resource-based water scarcity city. Its per capita possession is less than 1/7 of the whole country. By 2020, the total population of the city is expected to reach about 8 million 400 thousand people, and the total amount of water will reach about 2 billion 100 million cubic meters. The shortage of water resources has become one of the main factors restricting the economic and social development and the improvement of the people's living standard. It also needs a large number of diversion of water from the Yellow River water. At present, there are still some problems in the construction of water ecological civilization city, such as the contradiction between the supply and demand of water resources, the high pressure of the spring and the heavy water ecological environment construction.
[b] in the flood season this year, the Jinan people can drink the Yangtze River water [/b]
Ji'nan is the "Spring City", but the water resources are still scarce. It is understood that the Ji'nan city is low in the South and low in the West. The average annual rainfall of the city is 638 millimeters, the total amount of water resources is 1 billion 748 million cubic meters, the available amount is 1 billion 156 million cubic meters, and the total amount of water used in 2011 is 1 billion 724 million cubic meters, of which the water consumption of the Yellow River is 568 million cubic meters. The average rainfall in 2012 is only more than 500 millimeters, which is lower than the average of the past year. At the same time, the water consumption of the main city is 1 million. With the increase of population, the contradiction between supply and demand of water resources is becoming more and more prominent. Over the years, many representatives have put forward suggestions on drinking water for residents. This year, the CPPCC member of the Chinese people's Political Consultative Conference (CPPCC) suggests that the Northern Lake wetland can be planned between the East and West rivers, the drinking water source protection area is set up, the water remittance flowing out of the springs is flowing here, and the people's home will be introduced after treatment to realize the vision of the spring and avoid the embarrassment of drinking bitter water.
in fact, increasing the source of drinking water is also an important part of the construction of water ecological civilization city. "Through the implementation of the south to North Water Diversion Project, this year the flood season, the Jinan people can drink the Yangtze River water," Zhang Tilun introduced, "Ji'nan city can lead to 100 million cubic meters of water each year, of which Pingyin index is 7 million, the Zhangqiu index is 17 million, the city target is 76 million Party." According to the calculation of Daming Lake storage capacity of 1 million 250 thousand cubic meters, the annual water volume of the Yangtze River in Ji'nan can reach 80 Daming lakes. The Yangtze River water will be sent to the water supply plant, taking into account agricultural, industrial and ecological water consumption. The water quality of the south to North Water Diversion Project has also been paid attention to by the representatives and members of the Committee. Zhang Jianji, a member of the CPPCC, suggests that the system of pollution control in the river basin should be built in an all-round way to ensure the stability of the south to North Water Diversion to meet the water quality requirements.
in addition to the increase of water source, the Yellow River water, Yangtze River water, reservoir water, unconventional water and groundwater are also realized through water source connectivity project, and the annual maximum water transfer capacity is estimated to be 300 million cubic meters. For example, the new five point sluice of the jping main canal to Yuqing lake reservoir is called Changjiang River, and the annual water supply capacity is 35 million. On the basis of guaranteeing the total amount of water supply, the protection of water sources is strengthened on the basis of the total amount of water supply, which makes the water quality of urban and rural drinking water meet the standard, which conforms to 106 national drinking water standards,
. Previously, according to the provincial government arrangement, the Ji'nan rural drinking water safety plan in 2012 will solve the problem of 163 thousand and 100 rural population and 30 thousand rural teachers and students' drinking water insecurity, and the total investment plan will be 88 million 290 thousand yuan. At present, the project has completed more than half of the project tasks. In 2015, the rural drinking water safety standards will be fully realized.
[b] east industrial area water source replacement in the southern mountain area recharge source [/b]
January 10th, the spring water position of spout to 28.59 meters, although the urban spring group has achieved a continuous 9 years of spray, but the pressure is still not small. Zhang Tilun said that the previous request was "to keep the spring water flowing under normal precipitation". However, after Ji'nan became the first pilot city of water ecological civilization in the country, it was required to improve the "spring water gushing", "whether the precipitation is normal or not." To solve this problem, it is an important topic to reduce groundwater exploitation at the same time.
subtraction of groundwater, on the one hand, 600 thousand mu of well irrigated farmland in the southern spring supply area is popularized to promote the diversion of Yellow River, diversion and diversion of the river; on the other hand, the East Industrial Zone is carried out in the eastern industrial area, and the water and surface water in the Yellow River is the main source of agricultural irrigation and industrial water use, and the groundwater is replaced by the water for the conservation of spring and the drinking of the citizens.
it is understood that in the eastern industrial area, due to the lack of water source and the lack of urban water supply network, most of the groundwater is mined by exploitation of groundwater. At present, the exploitation of the groundwater in the eastern industrial area is reduced by means of calling water sources in other areas and finding new water sources in the the Yellow River beach.
the East joint water supply project, taking Changjiang River water, the Yellow River water and surface water as water source, is connected into the whole by pipeline, combined scheduling and supplementation, supplying the production and living raw water to the eastern urban area, providing the key enterprises in the eastern region of Jigang, refinery and other key enterprises with reliable industrial production of raw water, thus reducing the exploitation of groundwater and alleviating the exploitation of the water. The contradiction between supply and demand of water resources in the eastern region needs replacement of groundwater for urban life and protection of springs. The implementation of
East Union water supply project will play an important role in the sustainable development of economic and social development in Ji'nan. Since the project has been operated, 70 million 510 thousand tons of groundwater has been replaced. It has a positive effect on reducing groundwater exploitation in the eastern part of the city, optimizing the allocation of water resources, improving the ecological environment of Ji'nan, realizing the natural gushing of the spring group and restoring the characteristics of the spring city. The realistic meaning and profound influence.
strengthening the function of "supplement" when protecting the southern spring area recharge area. Before that, most of the farmland in the southern mountainous area was pumped by underground wells for groundwater irrigation. Zhang Tilun said, "on the one hand, the source of the southern mountain area depends on the natural precipitation, but the old man is not all the help of the year, so we have to rely on artificial replenishment. By calling Changjiang water, the Yellow River water to supine tiger mountain and recharge the source of 600 thousand mu of farmland in the southern mountain area, it can effectively supplement the groundwater in Ji'nan, raise the groundwater level and promote the spring water spray." There is a direct impact. " (Chen Xi Chen Wei Ma Yunyun)
Yu Qing Lake Reservoir waterfowl. (Guo Jianzheng photo)
after the harnessing of the Xiaoqing River night scene. (Photo by Zhou Qingxian)