The first nationwide!"Original ecology" water control makes Tongxin Lake clear Ningbo will also repair 100 kilometers of rivers and lakes

Video Production Reporter Teng Hua

The sparkling Zhuang City Tongxin Lake

The blue sky and white clouds were covered, and the surface of Tongxin Lake, Zhuang City, Zhenhai District, Ningbo City, Zhejiang Province was sparkling, clear and pleasant. The reeds and mandarine grass on the shore of the lake form a green landscape with the beauty banana and paper grasses that are rooted in near the water area, swaying in the breeze; the lake surface is floating, and the water lily floating on the water is open quietly ...

On the morning of July 28, the reporter followed the Ningbo Ecological and Environment Bureau and the relevant person in charge of the Zhenhai New City Comprehensive Service Center to inspect the Tongxin Lake Water Ecological Governance Project, which was attracted by the beautiful and clean scene in front of him. As the first urban lake in Ningbo to complete the water ecological governance, Tongxin Lake built a 1 -kilometer ecological buffer belt. This "original ecology" water governance method is expected to be replicated and promoted to Quan Ningbo.

The "transformation" road of Tongxin Lake began 3 years ago. The urban lake with an area of ​​about 146,000 square meters is embedded in the center of Zhuangshi Street like pearls. However, due to the surrounding area of ​​life and office area, the pollution pressure of the face source has always been worrying.

According to monitoring data in 2019, the main pollution indicators of Tongxin Lake are ammonia nitrogen and total phosphorus, and the water quality category is inferior. The lake body is contaminated by a variety of sources, including the source of life, industrial sources, agricultural sources, and urban surface runoffs, etc., and the water body has been severely polluted.

How can "Pearl" fade away from the dust? In accordance with the beautiful lake targets of safe and smooth, ecological health, and harmonious people, Tongxin Lake opened a series of measures to carry out a series of measures to carry out water ecological governance in 2020, and strive to allow the water quality to meet the IV standards, and the function of the lake water ecosystem has been further improved.

In the restoration of water ecology, the recovery and construction of aquatic plants is a vital link. It directly determines the smoothness of the water ecosystem from turbid water to water, and the landscape effect of the water body after repairing.

"Ecological buffer belt is a good way to apply the right medicine." Jiang Yan, staff member of the Construction Section of Zhenhai New Town Comprehensive Service Center, said that in order to solve the problem of pollution of lake surface sources and floor runoff pollution, they built a multi -level ecological ecology in Tongxin Lake in Tongxin Lake Cushion band. Specifically, including the construction of multiple types of ecological refutation to intercept and reduce surface source pollution; ecological transformation of water network around the lake, design green space, build ecological grass grooves, purify the field runoff; Self -net ability to reach the goal of engineering governance.

The old -fashioned isolation iron railings are gone, and now it is a green vegetation barrier; before it can be "zero -distance" to the trail by the lake, now it has become a large lawn with water purification function, the playground and beach where children can stop and beaches. ; In the past, the underwater world with sparse biological diversity, now launching small fish and small shrimp and green algae duckweed ... Because of this layer of ecological buffer belt, the water quality is clear, the lake becomes beautiful, people's lives of people's lives are beautiful, people’s lives of people's lives are beautiful, people’s lives of people's lives have become beautiful, people’s lives of people's lives are beautiful, people’s lives are living, people’s lives of people's lives have become beautiful. It has become more beautiful.

What is the effectiveness of a series of "original ecology"? Data will talk -now, the water quality of Tongxin Lake has been significantly improved. Compared with the project remediation, the permanganate index has dropped 3.7 times, ammonia nitrogen concentration drops by 42%, the total phosphorus indicator has decreased by 12 times. With a significant reduction, the water quality of the lake can maintain the IV class for a long time, and the stability of the water ecosystem and the gradually improved ecological service function.

Build a unified standard for the ecological buffer belt of the river and lake, Zhejiang is also the first in the country. In a practical sense, the governance method of ecological buffer band has also achieved certain results. "Zhenhai Tongxin Lake is one of the model projects of 13 water ecological governance demonstration counties in the province in 2021. Its model is expected to copy and promote it to Quan Ningbo." Tongxin Lake will further improve the water quality of the lake. The lake reaching the quality of type IV is only the goal of the project, but it is far from the end of governance. "

In the next step, our city will carry out the protection and ecological repair of rivers and lakes in accordance with the idea of "keeping, retreating, and supplement" to ensure the ecological space of rivers and lakes and promote long -term water quality.In 2021, Ningbo has completed the restoration of the river and lake ecological buffer 31.1 kilometers, excessive completion of the work tasks issued by the Provincial Department; this year, our city will plan to repair another 30 kilometers.It is planned that by 2025, a total of 100 kilometers of the rivers and lake ecological buffer belt will be repaired, and the function of the water ecosystem will be basically restored.Reporter Tenghua Correspondent Chen Xiaowu Wang Luwen/Photo

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