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Study on the removable carbon sink estimation and decomposition of influencing factors of mariculture shellfish and algae in China—a two-dimensional perspective based on scale and structure

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Abstract

Facing the dual pressure of economic development and ecological environmental protection, it is undoubtedly a good strategy to strengthen energy conservation and emission reduction while further increasing carbon sink. The contribution of forest carbon sink is well-known, but the carbon sink function of mariculture is rarely known. Based on the statistics of China’s fishery department and the quality assessment method, this paper constructed a preliminary accounting system for the removable carbon sink of mariculture shellfish and algae, and estimated its capacity in China from 2005 to 2017. On this basis, the logarithmic mean Divisia index was used to analyze the effects of structure and scale factors on the removable carbon sink of mariculture shellfish and algae. The results showed that the annual average removable carbon sink of shellfish and algae in China’s mariculture reached 92.7 ten thousand tons, and the overall trend was upward. The total removable carbon sink of shellfish was greater than that of algae. Among them, Grassastrea gigas was the main source of removable carbon sink in China’s mariculture, followed by Ruditapes philippinarum. The economic value of annual removable carbon sink of mariculture shellfish and algae in China was equivalent to 139–556 million dollars. Furthermore, the scale factor plays a leading role in the removable carbon sink capacity of mariculture in China, while the structure factor plays a minor role.

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Data availability

The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

Notes

  1. United Nations Framework Convention on Climate Change (UNFCCC) defines carbon sink as the process, activity, or mechanism for removing CO2 from the atmosphere.

  2. Marine carbon sink refers to the process, activity, and mechanism of absorbing CO2 by marine organisms and fixing them in the marine. When the CO2 pressure in the atmosphere is higher than that in the surface water, the CO2 enters the sea from the atmosphere through wave agitation, and then stores in the form of carbonate, thus forming the marine carbon sink.

  3. The data was derived from the “China Fishery Statistics Yearbook”.

  4. The data was derived from the “China Fishery Statistics Yearbook”.

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Funding

This work was supported by The National Social Science Fund of China (grant number 20CJY022) and Qingdao Philosophy and Social Science Planning Project (grant number QDSKL2001063).

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RWH: conceptualization; data curation; formal analysis; investigation; methodology; project administration; resources; software; visualization; writing—original draft; writing—review and editing; funding acquisition

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Correspondence to Wenhan Ren.

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The authors declare that they have no competing interests.

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Responsible Editor: Vedula VSS Sarma

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Ren, W. Study on the removable carbon sink estimation and decomposition of influencing factors of mariculture shellfish and algae in China—a two-dimensional perspective based on scale and structure. Environ Sci Pollut Res 28, 21528–21539 (2021). https://doi.org/10.1007/s11356-020-11997-1

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  • DOI: https://doi.org/10.1007/s11356-020-11997-1

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