Science and technology Xinghai 丨 is a source of blue carbon

Zhejiang News Client reporter He Dongjian

Through photosynthesis, plants can absorb greenhouse gas such as carbon dioxide and release oxygen from the atmosphere. This is the most familiar "green carbon" form.

However, there is still an important carbon exchange is relatively unfamiliar, called "blue carbon" -out the ocean stored about 93%of carbon dioxide on the earth, which is the largest carbon bank on the planet. It can help clear 30%of new carbon dioxide every year. above.

Looking at the ocean and grasping the "blue carbon" technological innovation project, it is a new solution made by Zhejiang to achieve the neutrality of carbon peak carbon and carbon and carbon.

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Mangrove picture According to visual China

Blue carbon, focusing on the word "blue". It is not easy to fix carbon from the ocean.

At the National Marine Facilities Breeding Engineering Technology Research Center of Zhejiang Ocean University, a research team composed of more than 10 scientific researchers and averaging 35 years of age is committed to expanding the "north" of the mangrove planting border.

"Mangroves are tropical subtropical marine tide band plants. It is generally believed that it is difficult to plant successfully in the cold area above 30 degrees north latitude." Dr. Lili Li Li Li's team member, whether the mangrove planting can be successful in the north, except for temperature, planting technology is the key factor. The research team has developed a series of mangrove northern transfer technology, including domestication, potted seedlings cultivation, beach coating transformation, etc.

Today, in the 30 ° north latitude, more than 100,000 mangrove seedlings are lush.

"Planting trees is easy to raise seedlings," Ji Lili said that seedling must be used to use the climate training box for high and low temperature alternation of junior domestication for 3 months, and then use the built -constructed flow -changing domestication system for low temperature domestication in winter for 3 months, thereby improving it to improve Its survival rate in high latitudes.

Among them, the inspiration to create a flow -changing domestication system comes from the "flower knife" on the seaside billboard. When the wind blows, the billboard shows a lot of small holes, and when the wind stops, the original appearance is restored. The flow -changing domestication system is composed of steel skeleton and automatic rolling curtain thin film. The curtain will move freely with the tide of seawater, and form a certain closed space, which has a good thermal insulation and freezing effect on the initial seedlings.

All the way north, these mangrove plant seedlings have now been promoted in Shanghai Gulf National Forest Park. Imagine that in the near future, this blue carbon plant will be like a pavilion to become the mainstay of the ocean "green mountains and green mountains".

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The system improves marine carbon exchange capacity, Zhejiang still needs to work hard.

"Not only is the overall promotion and repair of marine ecology, improving the capacity of mangroves and salt marsh, but also to promote marine carbon exchange into the field of carbon transactions, carry out research on quantitative observation of land source carbon input, carry out marine biological blue carbon technology research, etc. Integrate into the science and technology Xinghai system, focusing on carrying out the "blue carbon" ecological protection and repair technologies such as fixation and reimbursement technology, forming "blue carbon" reserves accounting, increased carbon exchange capacity, carbon exchange potential assessment, marine biological blue carbon industry innovation innovation Engineering and other series of application demonstration engineering, etc., said the person in charge of the relevant office of the Provincial Department of Science and Technology.

These days, in the Zhoushan Huafeng Ship Factory, the engineering and technical team of Zheneng Group is topped with a scorching sun, and has stepped up a new environmental protection technology to the world's largest container liner company, the Mediterranean Shipping Corporation MSC PETRA container freighter. This is also one of the 23 ships under construction in Zheneng Group under construction in the past month, setting a new record for domestic single -month ship desulfurization and installation.

For desulfurizing and decarburizing, we see a lot on land. In order to meet the emission standards, the factory shows its magical powers and opens the double carbon road with new technologies. It is rare to give a desulfurization of the ship.

Wang Rung, chairman of Zheng's leading environmental technology Co., Ltd., introduced that ship desulfurization devices jointly developed by enterprises and Zhejiang University can reduce the sulfur dioxide in the tail gas discharged by ocean ships to extremely low levels, fully meet the emission standards prescribed by international maritime organizations. "A 300,000 -ton oil tanker, the original discharged exhaust gas contains 3.5%, is equivalent to the emissions of 400,000 cars. After installing the desulfurization device, the emissions can be reduced to 0.1%."

The research and development of ocean -to -ocean carbon reduction technology is underway. "It is expected that there will be staged results next year to provide the Zhejiang plan for my country's 'carbon -peak carbon neutralization' and global shipping carbon reduction targets." Wang Ru Neng said.

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Zhejiang Dongtou Seascape Pictures According to visual China

In addition to the pleasing blue water and blue sky, we look forward to the blue carbon brings more beauty to Zhejiang.

"Taking Zhoushan City as an example, the city's beach coating resources are about 183 square kilometers. If you apply mangroves on a large area on bare beach, the original exposed silt will emit different vitality." Ji Lili said that this will be on the coastal ecology. Environmental restoration and biological diversity protection play a more important role, which is of great significance to ensure the entire marine ecological environment and promote the sustainable and stable development of the marine economy.

In 2021, Zhejiang compiled the completion of the nation's first provincial marine ecological evaluation indicator system, and was issued in the province. This indicator system is the new exploration and new practice of Zhejiang marine ecological early warning monitoring and evaluation. It is a benchmark for marine ecological precision management level. Early warnings through reliable data analysis are issued to provide basic basis for the protection of marine biological diversity.

Under the guidance of demonstration, Blue Carbon Technology "flowers everywhere" in the coastal cities and counties.

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