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Bulletin of Chinese Academy of Sciences (Chinese Version)

Keywords

ecosystem carbon sink carbon storage ecologically critical zone carbon cycle carbon neutrality

Document Type

S&T Supporting Realization of Carbon Peak and Carbon Neutrality Goals - Cross-cutting Innovation in Basic and Frontier Areas

Abstract

Carbon peak in 2030 and carbon neutralization in 2060 has been established as one of the important strategic goals of China's economic and social development. During 2010-2020, the capacity of terrestrial ecosystems in China to sequester carbon dioxide (CO2) varied from 1.0 to 1.3 Gt/a, with high uncertainty. To enhance the carbon sink capacity of Chinese terrestrial ecosystems, the combination with land space planning and ecological protection is essential. It is necessary to first stabilize the existing carbon storage in these ecosystems, such as forest, grassland, wetland, coast, and others, and then implement some important ecological protection and ecological restoration projects at large scale. In addition, new technologies of carbon capture, utilization, and storage based on biological CO2 fixation principles (Bio-CCUS) or ecological CO2 fixation principles (Eco-CCUS) should be developed and applied. Through integrated regional ecosystem management and spatial planning, as well as multiple technologies to enhance carbon sink, it is possible to double the carbon sink capacity, both natural and human-made, arriving at 2.0-2.5 Gt/a during 2050-2060. In practice, we need to scientifically assess the key technologies of ecosystem carbon sink improvement in view of effectiveness, economic feasibility, and durability, and then comprehensively integrate these technologies into different regions for demonstrations at regional scale.

First page

490

Last Page

501

Language

Chinese

Publisher

Bulletin of Chinese Academy of Sciences

References

1 于贵瑞, 何念鹏, 王秋凤. 中国生态系统碳收支及碳汇功 能:理论基础与综合评估. 北京:科学出版社, 2013. Yu G R, He N P, Wang Q F. Carbon budget and carbon sink of ecosystems in China:Theoretical basis and comprehensive assessment. Beijing:Science Press, 2013. (in Chinese) 2 Wang F, Harindintwali J D, Yuan Z Z, et al. Technologies and perspectives for achieving carbon neutrality. The Innovation, 2021, 2(4):100180. 3 Mallapaty S. How China could be carbon neutral by midcentury. Nature, 2020, 586:482-483. 4 IPCC. Climate Change 2021:The Physical Science Basis//Masson-Delmotte V, Zhai P, Pirani A, et al. (Ed). Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge and New York:Cambridge University Press, 2021. 5 于贵瑞, 赵新全, 刘国华. 中国陆地生态系统增汇技术途径 及其潜力分析. 北京:科学出版社, 2018. Yu G R, Zhao X Q, Liu G H. Approaches for Increasing Carbon Sink of Terrestrial Ecosystems in China and Its Potential. Beijing:Science Press, 2018. (in Chinese) 6 于贵瑞, 王秋凤, 刘迎春, 等. 区域尺度陆地生态系统固碳 速率和增汇潜力的概念框架及其定量认证科学基础. 地理 科学进展, 2011, 30(7):771-787. Yu G R, Wang Q F, Liu Y C, et al. Conceptual framework of carbon sequestration rate and potential increment of carbon sink of regional terrestrial ecosystem and scientific basis for quantitative carbon authentification. Progress in Geography, 2011, 30(7):771-787. (in Chinese) 7 He H L, Wang S Q, Zhang L, et al. Altered trends in carbon uptake in China's terrestrial ecosystems under the enhanced summer monsoon and warming hiatus. National Science Review, 2019, 6(3):505-514. 8 何念鹏, 王秋凤, 刘颖慧, 等.区域尺度陆地生态系统碳增 汇途径及其可行性分析. 地理科学进展, 2011, 30(7):788- 794. He N P, Wang Q F, Liu Y H, et al. The approaches to enhance carbon sequestration of terrestrial ecosystem at regional scales, and their feasibility. Progress in Geography, 2011, 30(7):788- 794. (in Chinese) 9 Chen Z, Yu G R, Ge J P, et al. Temperature and precipitation control of the spatial variation of terrestrial ecosystem carbon exchange in the Asian region. Agricultural and Forest Meteorology, 2013, 182/183:266-276. 10 Yu G R, Chen Z, Piao S L, et al. High carbon dioxide uptake by subtropical forest ecosystems in the East Asian monsoon region. PNAS, 2014, 111(13):4910-4915. 11 Cai W X, He N P, Li M X, et al. Carbon sequestration of Chinese forests from 2010 to 2060:Spatiotemporal dynamics and its regulatory strategies. Science Bulletin, 2022, doi:10.1016/j.scib.2021.12.012. 12 IPCC. 2006 IPCC Guidelines for National Greenhouse Gas Inventories. Kanagawa:Institute for Global Environmental Strategies (IGES), 2006. 13 Rogelj J, den Elzen M, Höhne N, et al. Paris Agreement climate proposals need a boost to keep warming well below 2℃. Nature, 2016, 534:631-639. 14 Zhao Y C, Wang M Y, Hu S J, et al. Economics- and policydriven organic carbon input enhancement dominates soil organic carbon accumulation in Chinese croplands. PNAS, 2018, 115(16):4045-4050. 15 He N P, Yu Q, Wu L, et al. Carbon and nitrogen store and storage potential as affected by land-use in a Leymus chinensis grassland of Northern China. Soil Biology and Biochemistry, 2008, 40(12):2952-2959. 16 Hu Z M, Li S G, Guo Q, et al. A synthesis of the effect of grazing exclusion on carbon dynamics in grasslands in China. Global Change Biology, 2016, 22(4):1385-1393. 17 Lu F, Hu H F, Sun W J, et al. Effects of national ecological restoration projects on carbon sequestration in China from 2001 to 2010. PNAS, 2018, 115(16):4039-4044. 18 Cai T, Sun H B, Qiao J, et al. Cell-free chemoenzymatic starch synthesis from carbon dioxide. Science, 2021, 373:1523- 1527. 19 Yan P, Xiao C W, Xu L, et al. Biomass energy in China's terrestrial ecosystems:Insights into the nation's sustainable energy supply. Renewable and Sustainable Energy Reviews, 2020, 127:109857. 20 He N P, Wen D, Zhu J X, et al. Vegetation carbon sequestration in Chinese forests from 2010 to 2050. Global Change Biology, 2017, 23(4):1575-1584. 21 Zhang C H, Ju W M, Chen J M, et al. Disturbance-induced reduction of biomass carbon sinks of China's forests in recent years. Environmental Research Letters, 2015, 10(11):114021. 22 Chen C, Park T, Wang X H, et al. China and India lead in greening of the world through land-use management. Nature Sustainability, 2019, 2:122-129. 23 Piao S, Fang J, Ciais P, et al. The carbon balance of terrestrial ecosystems in China. Nature, 2009, 458:1009-1013. 24 Tang X L, Zhao X, Bai Y F, et al. Carbon pools in China's terrestrial ecosystems:New estimates based on an intensive field survey. PNAS, 2018, 115(16):4021-4026. 25 Xu L, Yu G R, He N P, et al. Carbon storage in China's terrestrial ecosystems:A synthesis. Scientific Reports, 2018, 8:2806. 26 Wang J, Feng L, Palmer P I, et al. Large Chinese land carbon sink estimated from atmospheric carbon dioxide data. Nature, 2020, 586:720-723. 27 Wang F M, Sanders C J, Santos I R, et al. Global blue carbon accumulation in tidal wetlands increases with climate change. National Science Review, 2020, 8(9):nwaa296. 28 Gao Y, Zhou F, Ciais P, et al. Human activities aggravate nitrogen deposition pollution to inland water over China. National Science Review, 2019, 7(2):430-440. 29 Gao Y, Jia J J, Lu Y, et al. Determining dominating control mechanisms of inland water carbon cycling processes and associated gross primary productivity on regional and global scales. Earth-Science Reviews, 2021, 213:103497. 30 Li H W, Wang S J, Bai X Y, et al. Spatiotemporal distribution and national measurement of the global carbonate carbon sink. Science of the Total Environment, 2018, 643:157-170. 31 Li H W, Wang S J, Bai X Y, et al. Spatiotemporal evolution of carbon sequestration of limestone weathering in China. Science China Earth Sciences, 2019, 62(6):974-991. 32 白晓永, 王世杰, 曹建华, 等. 岩石风化碳汇与气候变化. 北 京:科学出版社, 2021. Bai X Y, Wang S, Cao J H, et al. Carbon Sink of Rock Weathering and Climatic Change. Beijing:Science Press, 2021. (in Chinese)

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