{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T06:58:29Z","timestamp":1790405909077,"version":"4.1.0"},"reference-count":63,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T00:00:00Z","timestamp":1788480000000},"content-version":"vor","delay-in-days":3,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100002367","name":"Chinese Academy of Sciences","doi-asserted-by":"publisher","award":["HZXM20225001"],"award-info":[{"award-number":["HZXM20225001"]}],"id":[{"id":"10.13039\/501100002367","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000781","name":"European Research Council","doi-asserted-by":"publisher","award":["647038 [BIODESERT]"],"award-info":[{"award-number":["647038 [BIODESERT]"]}],"id":[{"id":"10.13039\/501100000781","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Global Change Biology"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Drylands store most of the global soil inorganic carbon (SIC), yet the extent to which this pool interacts with contemporary carbon (C) cycling remains poorly understood. To test whether SIC behaves primarily as an inert geological reservoir or instead bears a modern carbon imprint, we quantified SIC content and radiocarbon (\u2206\n                    <jats:sup>14<\/jats:sup>\n                    C) at 42 dryland sites spanning broad aridity gradients across Eurasia. We also evaluated the climatic, edaphic, and biotic factors associated with variation in \u2206\n                    <jats:sup>14<\/jats:sup>\n                    C\u2010SIC. Across all sites, topsoil SIC (~0\u201310\u2009cm) was strongly depleted in\n                    <jats:sup>14<\/jats:sup>\n                    C but consistently enriched relative to\n                    <jats:sup>14<\/jats:sup>\n                    C\u2010dead carbonates, indicating that it contains a measurable component derived from modern carbon inputs. In the Chinese drylands, \u2206\n                    <jats:sup>14<\/jats:sup>\n                    C\u2010SIC declined with increasing aridity, consistent with weaker modern carbon exchange under drier conditions and a greater contribution of inherited or\n                    <jats:sup>14<\/jats:sup>\n                    C\u2010depleted carbonate carbon. Soil pH and \u2206\n                    <jats:sup>14<\/jats:sup>\n                    C of soil organic carbon were the strongest predictors of \u2206\n                    <jats:sup>14<\/jats:sup>\n                    C\u2010SIC, suggesting that carbonate dissolution\u2010reprecipitation and the age of carbon entering soil CO\n                    <jats:sub>2<\/jats:sub>\n                    play key roles in determining SIC origins. At a subset of nine Chinese sites, \u2206\n                    <jats:sup>14<\/jats:sup>\n                    C\u2010SIC declined sharply with depth and approached\n                    <jats:sup>14<\/jats:sup>\n                    C\u2010dead values in subsoils, indicating little influence of modern carbon in deeper carbonate pools. The presence of mixed\n                    <jats:sup>14<\/jats:sup>\n                    C\u2010depleted and modern\n                    <jats:sup>14<\/jats:sup>\n                    C signatures in SIC potentially complicates the use of SIC isotopic signatures as proxies of environmental conditions. Together, our results indicate that dryland topsoil SIC commonly carries a measurable modern carbon signature that is tightly linked to contemporary carbon cycling. This coupling weakens with increasing aridity and soil depth, suggesting that environmental change in drylands may reshape one of the planet's largest carbon pools not only through changes in SIC stocks, but also through shifts in carbonate radiocarbon signatures and sources.\n                  <\/jats:p>","DOI":"10.1111\/gcb.71095","type":"journal-article","created":{"date-parts":[[2026,9,5]],"date-time":"2026-09-05T05:11:41Z","timestamp":1788585101000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Radiocarbon Reveals Modern Carbon Exchange With Topsoil Inorganic Carbon in Drylands"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-9975-9419","authenticated-orcid":false,"given":"Hui","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Biogeochemical Processes Max Planck Institute for Biogeochemistry  Jena Germany"},{"name":"Geo\u2010Biosphere Interactions, Department of Geosciences University of T\u00fcbingen  T\u00fcbingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5286-5645","authenticated-orcid":false,"given":"Jianbei","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Biogeochemical Processes Max Planck Institute for Biogeochemistry  Jena Germany"},{"name":"State Key Laboratory of Regional and Urban Ecology, Research Center for Eco\u2010Environmental Sciences Chinese Academy of Sciences  Beijing China"},{"name":"National Observation and Research Station of Earth Critical Zone on the Loess Plateau in Shaanxi  Xi'an China"},{"name":"Shaanxi Yan'an Forest Ecosystem Observation and Research Station  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7434-4856","authenticated-orcid":false,"given":"Fernando T.","family":"Maestre","sequence":"additional","affiliation":[{"name":"Environmental 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