TY - JOUR
T1 - Size, distribution, and vulnerability of the global soil inorganic carbon
AU - Huang, Yuanyuan
AU - Song, Xiaodong
AU - Wang, Ying Ping
AU - Canadell, Josep G.
AU - Luo, Yiqi
AU - Ciais, Philippe
AU - Chen, Anping
AU - Hong, Songbai
AU - Wang, Yugang
AU - Tao, Feng
AU - Li, Wei
AU - Xu, Yiming
AU - Mirzaeitalarposhti, Reza
AU - Elbasiouny, Heba
AU - Savin, Igor
AU - Shchepashchenko, Dmitry
AU - Viscarra Rossel, Raphael A.
AU - Goll, Daniel S.
AU - Chang, Jinfeng
AU - Houlton, Benjamin Z.
AU - Wu, Huayong
AU - Yang, Fei
AU - Feng, Xiaoming
AU - Chen, Yongzhe
AU - Liu, Yu
AU - Niu, Shuli
AU - Zhang, Gan Lin
N1 - Publisher Copyright:
© 2024 American Association for the Advancement of Science. All rights reserved.
PY - 2024/4/12
Y1 - 2024/4/12
N2 - 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.
AB - 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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U2 - 10.1126/science.adi7918
DO - 10.1126/science.adi7918
M3 - Article
C2 - 38603490
AN - SCOPUS:85190485003
SN - 0036-8075
VL - 384
SP - 233
EP - 239
JO - Science
JF - Science
IS - 6692
ER -