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Huang Y, Song X, Wang YP, Canadell JG, Luo Y, Ciais P, Chen A, Hong S, Wang Y, Tao F, Li W, Xu Y, Mirzaeitalarposhti R, Elbasiouny H, Savin I, Shchepashchenko D, Rossel RAV, Goll DS, Chang J, Houlton BZ, Wu H, Yang F, Feng X, Chen Y, Liu Y, Niu S, Zhang GL. Size, distribution, and vulnerability of the global soil inorganic carbon. Science 2024; 384:233-239. [PMID: 38603490 DOI: 10.1126/science.adi7918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 03/07/2024] [Indexed: 04/13/2024]
Abstract
Global estimates of the size, distribution, and vulnerability of soil inorganic carbon (SIC) remain largely unquantified. By compiling 223,593 field-based measurements and developing machine-learning models, we report that global soils store 2305 ± 636 (±1 SD) billion tonnes of carbon as SIC over the top 2-meter depth. Under future scenarios, soil acidification associated with nitrogen additions to terrestrial ecosystems will reduce global SIC (0.3 meters) up to 23 billion tonnes of carbon over the next 30 years, with India and China being the most affected. Our synthesis of present-day land-water carbon inventories and inland-water carbonate chemistry reveals that at least 1.13 ± 0.33 billion tonnes of inorganic carbon is lost to inland-waters through soils annually, resulting in large but overlooked impacts on atmospheric and hydrospheric carbon dynamics.
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Affiliation(s)
- Yuanyuan Huang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiaodong Song
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Ying-Ping Wang
- CSIRO Environment, Private Bag 10, Clayton South VIC 3169, Australia
| | | | - Yiqi Luo
- Soil and Crop Sciences Section, School of Integrative Plant Science, Cornell University, Ithaca NY 14853, USA
| | - Philippe Ciais
- Laboratoire des Sciences du Climat et de l'Environnement, CEA/CNRS/UVSQ/Université Paris Saclay, Gif-sur-Yvette 91990, France
| | - Anping Chen
- Department of Biology and Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO 80523, USA
| | - Songbai Hong
- School of Urban Planning and Design, Shenzhen Graduate School, Peking University, Shenzhen 518055, China
| | - Yugang Wang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China
| | - Feng Tao
- Department of Ecology and Evolutionary Biology and Department of Global Development, Cornell University, Ithaca, New York 14853, USA
| | - Wei Li
- Department of Earth System Science, Ministry of Education Key Laboratory for Earth System Modelling, Institute for Global Change Studies, Tsinghua University, Beijing 100084, China
| | - Yiming Xu
- School of Grassland Science, Beijing Forestry University, Beijing 100083, China
| | - Reza Mirzaeitalarposhti
- Institute of Crop Science (340i), University of Hohenheim, Fruwirthstraße 20, 70599 Stuttgart, Germany
| | - Heba Elbasiouny
- Agriculture Faculty (Girls), Al-Azhar University, Cairo 11651, Egypt
| | - Igor Savin
- V.V. Dokuchaev Soil Science Institute, Moscow 119017, Russia
- Institute of Environmental Engineering of RUDN University, Moscow 117198, Russia
| | - Dmitry Shchepashchenko
- International Institute for Applied Systems Analysis (IIASA) Schlossplatz 1, 2361 Laxenburg, Austria
- Center for Forest Ecology and Productivity of the Russian Academy of Sciences, Moscow 117997, Russia
- Institute of Ecology and Geography, Siberian Federal University, 79 Svobodny Prospect, 660041 Krasnoyarsk, Russia
| | - Raphael A Viscarra Rossel
- Soil and Landscape Science School of Molecular and Life Sciences, Faculty of Science and Engineering, Curtin University, GPO Box U1987, Perth WA 6845, Australia
| | - Daniel S Goll
- Laboratoire des Sciences du Climat et de l'Environnement, CEA/CNRS/UVSQ/Université Paris Saclay, Gif-sur-Yvette 91990, France
| | - Jinfeng Chang
- International Institute for Applied Systems Analysis (IIASA) Schlossplatz 1, 2361 Laxenburg, Austria
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Benjamin Z Houlton
- Department of Ecology and Evolutionary Biology and Department of Global Development, Cornell University, Ithaca, New York 14853, USA
| | - Huayong Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Fei Yang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Xiaoming Feng
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yongzhe Chen
- Department of Geography, The University of Hong Kong, Hong Kong 999077, China
| | - Yu Liu
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Shuli Niu
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Gan-Lin Zhang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- College of Advanced Agronomy, University of Chinese Academy of Sciences, Beijing 100049, China
- Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
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