The ocean stores about 93% of the carbon dioxide on the earth, which is estimated to be 4 trillion tons. It is the largest carbon sink on the earth, and it removes more than 30% of the carbon dioxide discharged into the atmosphere every year. Although the biomass of coastal plants is only 0.05% of that of land plants, the annual carbon sequestration is equivalent to that of land plants.
People are always more familiar with green carbon. In fact, the ocean is also a huge treasure house for fixing and storing carbon. Algae beds, mangroves and salt marshes are considered as three important coastal blue carbon ecosystems, and macroalgae, shellfish and even microorganisms can also fix and store carbon efficiently. In 2009, the United Nations issued relevant reports, affirming the important role of oceans in global climate change and carbon cycle. As a new term, blue carbon has been gradually recognized and valued by people.
Blue carbon responds to climate.
According to incomplete statistics, since 10, the Ministry of Science and Technology, the Ministry of Environmental Protection, the Chinese Academy of Sciences, the National Natural Science Foundation of China and the State Oceanic Administration have arranged more than 30 scientific research projects involving blue carbon, which has spawned a number of high-level scientific research achievements. The implementation of the National South Red and North Willow Blue Bay Project has accumulated experience for promoting the development of blue charcoal. Zhang Zhanhai, director of the Strategic Planning and Economics Department of the State Oceanic Administration, said.
China's vast sea area, rich biodiversity, solid industrial base and solid scientific research conditions have laid a solid foundation for the development of blue carbon, which has great development potential. Zhang Zhanhai said that the development of blue carbon will promote the health and stability of these ecosystems, protect the marine ecological environment and improve the level of marine ecological conservation.