"Old fishermen from the West Taihu Lake told me that in the 1970s and 1980s, grass was still flourishing in the lake and they used to catch mandarin fish with nets.
——Zhang Bo (Chief Engineer, Ministry of Ecology and Environment)

On March 30, the Ministry of Ecology and Environment held a press conference to report the recent progress of national water ecological environmental protection work and the next arrangement and deployment.By the end of 2020, 98.2 percent of 2,914 black and odorous water bodies in cities at prefecture level and above have been removed, Zhang Bo, chief engineer of the Ministry of Ecology and Environment and director of the water ecology and environment department, announced at the meeting.
This is a remarkable achievement, as it fulfils the goal set in the Water Pollution Prevention and Control Action Plan (also known as the "Water Ten Plan") that by 2020, black and odorous water bodies in the built up areas of cities at and above the prefecture level should be kept within 10%.Zhang Bo said that while seeing the achievements, we should also see the existing problems and shortcomings."From the international comparison, China's water ecology gap is obvious, has become a prominent shortcoming in the building of a beautiful China, this point should cause great attention.At present, the ecological destruction of rivers and lakes is quite common in China, and some places are quite prominent.Some old fishermen in Yunnan told me some time ago that in the 1960s and 1970s, we used to see the spawning of native fish such as wavy fish, horse fish and pineapple fish in a certain season along the lake, but now we can't see them any more.The old fishermen of West Taihu Lake told me that in the 1970s and 1980s, the water plants were still flourishing in the lake, and they used to catch mandarin fish with nets. The mandarin fish is a fish that eats fish and sits on the bottom waiting for the fish to catch it.Judging from this, in the 1970s and 1980s, the transparency of the water in the West Taihu Lake should be about one meter, but now it is not.These changes are directly related to ecological destruction.Many of our river and lake ecosystems are out of balance. The external cause is the source of nutrients, and the internal cause is the ecological imbalance. Some key biological chains have been broken."The 14th Five-Year Plan Outlines that by 2025, 85% of surface water should reach or be better than Class III water. This is a new requirement and challenge for water ecological and environmental governance.
Zhang Bo said that during the 14th Five-Year Plan period, we have put forward 12 words: "there are rivers and water, there are fish and grass, and there is harmony between people and water." These are the goals of water control.
For many years, China has attached great importance to production water and domestic water, but ecological water has no "status", and in the past, there was not much statistics on ecological water.If ecological water cannot be guaranteed, how can we talk about water ecology?In some places, the phenomenon of severe water shortage coexists with high water consumption. The phenomenon of rivers and lakes being cut off and dried up is common. The mode of development at the cost of high water consumption has not been fundamentally changed.
"We should strive to give ecological water a more prominent position, improve the basic system of water resources management, sort out the bottom line of ecological water use in important bodies of water, and gradually push forward to meet these bottom line requirements."“
"Fish and grass" stands for biodiversity

"Only when there are fish and grass can ecological functions be gradually restored," Zhang said.
In fact, as early as 2020, the ecological environment to start the "key river basin water ecological environment protection" difference "planning", adenocarcinoma has accepted the media interview, for "fish have grass" made a detailed statement, "to maintain ecological function of lakes need to focus, clear lakes ecological restoration measures, strive to make increase biodiversity, food chain integrity is better,The water is more self-purifying."
The bottom of a river or lake should not become a "desert".When we talk about forest cover on shore, we should talk about "forest cover" in water.

"Harmony between man and water" is a problem of water environment

At present, the structural, root and trend pressure of water ecological environment protection in China has not been fundamentally relieved.Some places have a lot of debts. Sewage treatment plants have been built on the surface, but the quality of the collection pipe network is not good. In some cities, the management is chaotic.
There are reasons for both inadequate infrastructure and poor management in some of our cities.The nitrogen and phosphorus pollution of planting and breeding industry has not been effectively solved, which leads to the fact that the primary pollutants in many places such as the Yangtze River Basin are no longer COD and ammonia nitrogen, but total phosphorus.
"We human beings should strictly restrain our behavior, reduce emissions, and reduce the damage to the environment," Zhang said.

In 2021, we will focus on five tasks, including the battle to protect clean water

Conference, adenocarcinoma also said that during the period of "difference", we will continue to adhere to ShanShuiLinTian HuCao system management, adhere to the precise, scientific, and pollution in accordance with the law, water ecological protection as the core, such as river basin water resources, water ecology and water environment as a whole element, consolidate deepen the water battle achievements, in 2021 will be key to do a good job of the following five aspects:
First, we will intensify efforts to protect clear water.We will consolidate and deepen efforts to control black and odorous water bodies in urban areas, continue to fight hard to protect water sources, and intensify ecological conservation and restoration in key river basins such as the Yangtze and Yellow Rivers.
Second, we will promote the green development of key industries and regions.To guide local governments in formulating differentiated regional environmental standards and control requirements, and to guide and promote high-quality development with high-level protection.
Third, we will formulate and implement the 14th Five-Year Plan for water ecological and environmental protection in key river basins, conduct a campaign to collect outstanding cases on beautiful rivers and lakes, publicize advanced experience, and guide local governments in their efforts to protect and build beautiful rivers and lakes.
Fourth, we will encourage local governments where conditions permit to take the lead in conducting trials, and strive to make breakthroughs in key areas and links such as non-point source pollution prevention and control and water ecological restoration.
Fifth, we will modernize the system and capacity for water ecological and environmental governance.A more precise and scientific ecological environment space management system, responsibility management system and pollution source management system will be established and improved.Adhere to the problem - oriented, actively and steadily improve the surface water environmental quality assessment methods.We will improve the working mechanism for identifying and promoting solutions to problems.We will strive to lay a better foundation for the basic realization of the goal of building a beautiful China by 2035 through five-year efforts.