A method for enhancing ocean carbon sink and artificial flow device

Abstract

The invention discloses a method for enhancing ocean carbon sink. According to the method, CO2 is absorbed through photosynthesis of phytoplankton to increase ocean carbon sink. The method includes the specific steps that a specially-made artificial flow building device is utilized to generate upwelling so as to lift abundant nutritive salt seawater in deep ocean up to the surface euphotic layer, surface phytoplankton is subjected to mass propagation (even red tide is caused) and participates in photosynthesis, and a great amount of CO2 is converted into organic matter in the body of the phytoplankton through the photosynthesis; then the artificial flow building device is utilized to generate downwelling so as to rapidly absorb the phytoplankton into the deep ocean, the phytoplankton dies rapidly in a low temperature environment without light, and carbon sinks to the seabed along with the dead living bodies and is stored in an ocean carbon library. According to the method, propagation of the ocean phytoplankton is promoted, and the phytoplankton is made to sink to the seabed rapidly to increase the ocean carbon sink amount, so that the concentration of CO2 in the atmosphere is effectively lowered, and the crisis of climate warming is relieved. The invention further discloses the artificial flow building device for enhancing ocean carbon sink.

Description

technical field [0001] The invention belongs to the field of marine ecological engineering, and in particular relates to a method for enhancing marine carbon sinks and an artificial flow-making device. Background technique [0002] Since the industrial revolution, due to the impact of human activities, atmospheric CO 2 The concentration of carbon has increased significantly, and the phenomenon of global warming is becoming more and more serious, and carbon sinks are an important way to alleviate global warming. As an important carbon sink, the ocean has received more and more attention, and the ocean system is the largest carbon sink on earth (see, Shi Honghua, Wang Xiaoli, Zheng Wei, etc. Research progress on methods for estimating carbon sequestration capacity of marine ecosystems[J]. Ecology Acta Sinica, 2014,34(1):12-22.), about 93% of CO on the earth 2 Stored in the ocean, about 50 times larger than the atmosphere, the oceanic carbon pool plays an important role in th...

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Problems solved by technology

Phytoplankton is the primary productivity in the ocean. More than 70% of the earth's surface is ocean, which provides enough photosynthetic sites for phytoplankton in the surface euphotic layer. Therefore, the use of biological pumps for carbon sequestration has great application potential. However, due to the euphotic layer The carbon sequestration effect of the biological pump is limited by the lack of nutrients, and the existing reported technologies often require large-scale dosing of nutrients such as iron salts to achieve a certain effect (see, Li Chunhou, Qi Zhanhui, Huang Honghui, etc. Ocean carbon sinks Research progress and discussion on the development direction of carbon sink fishery in the South China Sea[J].Southern Fisheries,2010,6(6):81-86. and, Sun Jun.Marine phytoplankton and biological carbon sink.Journal of Ecology,2011,31(18) :5372-5378.)

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