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Climate control on terrestrial biospheric carbon turnover

文献类型：期刊论文

作者Eglinton, Timothy, I; Galy, Valier V.; Hemingway, Jordon D.; Feng, Xiaojuan4; Bao, Hongyan1,5; Blattmann, Thomas M.; Dickens, Angela F.; Gies, Hannah; Giosan, Liviu6; Haghipour, Negar12
刊名PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版日期2021
卷号118期号:8
ISSN号0027-8424
关键词radiocarbon plant biomarkers carbon turnover times fluvial carbon carbon cycle
DOI10.1073/pnas.2011585118
文献子类Article
英文摘要Terrestrial vegetation and soils hold three times more carbon than the atmosphere. Much debate concerns how anthropogenic activity will perturb these surface reservoirs, potentially exacerbating ongoing changes to the climate system. Uncertainties specifically persist in extrapolating point-source observations to ecosystem-scale budgets and fluxes, which require consideration of vertical and lateral processes on multiple temporal and spatial scales. To explore controls on organic carbon (OC) turnover at the river basin scale, we present radiocarbon (C-14) ages on two groups of molecular tracers of plant-derived carbon-leaf-wax lipids and lignin phenols-from a globally distributed suite of rivers. We find significant negative relationships between the C-14 age of these biomarkers and mean annual temperature and precipitation. Moreover, riverine biospheric-carbon ages scale proportionally with basin-wide soil carbon turnover times and soil C-14 ages, implicating OC cycling within soils as a primary control on exported biomarker ages and revealing a broad distribution of soil OC reactivities. The ubiquitous occurrence of a long-lived soil OC pool suggests soil OC is globally vulnerable to perturbations by future temperature and precipitation increase. Scaling of riverine biospheric-carbon ages with soil OC turnover shows the former can constrain the sensitivity of carbon dynamics to environmental controls on broad spatial scales. Extracting this information from fluvially dominated sedimentary sequences may inform past variations in soil OC turnover in response to anthropogenic and/or climate perturbations. In turn, monitoring riverine OC composition may help detect future climate-change-induced perturbations of soil OC turnover and stocks.
学科主题Multidisciplinary Sciences
出版地WASHINGTON
WOS关键词SOIL ORGANIC-CARBON ; MATTER ; RIVER ; RADIOCARBON ; C-14 ; STORAGE ; EROSION ; CYCLE ; VARIABILITY ; SAMPLES
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
出版者NATL ACAD SCIENCES
WOS记录号WOS:000621797000019
资助机构US NSF [OCE-0928582, OCE-0851015, EAR-1226818] ; Swiss National Science Foundation [200021_140850, 200020_163162, 200020_184865] ; National Natural Science Foundation of China [41520104009]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26802]  
专题植被与环境变化国家重点实验室
作者单位1.Univ Bremen, Ctr Marine Environm Sci, D-28359 Bremen, Germany
2.[Eglinton, Timothy, I; Feng, Xiaojuan; Blattmann, Thomas M.; Gies, Hannah; Haghipour, Negar; Lupker, Maarten; McIntyre, Cameron P.; Montlucon, Daniel B.; Schwab, Melissa S.] Swiss Fed Inst Technol, Dept Earth Sci, CH-8092 Zurich, Switzerland
3.Eglinton, Timothy, I; Galy, Valier V.; Hemingway, Jordon D.; Feng, Xiaojuan; Dickens, Angela F.; Peucker-Ehrenbrink, Bernhard; Schefuss, Enno; Voss, Britta M.] Woods Hole Oceanog Inst, Dept Marine Chem & Geochem, Woods Hole, MA 02543 USA
4.Hemingway, Jordon D.] Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA
5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
6.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China
7.Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA
8.Swiss Fed Inst Technol, Lab Ion Beam Phys, Dept Phys, CH-8093 Zurich, Switzerland
9.Ocean Univ China, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China
10.Xiamen Univ, Coll Ocean & Earth Sci, State Key Lab Marine Environm Sci, Xiamen 361102, Peoples R China
推荐引用方式
GB/T 7714		 Eglinton, Timothy, I,Galy, Valier V.,Hemingway, Jordon D.,et al. Climate control on terrestrial biospheric carbon turnover[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2021,118(8).
APA Eglinton, Timothy, I.,Galy, Valier V..,Hemingway, Jordon D..,Feng, Xiaojuan.,Bao, Hongyan.,...&Zhao, Meixun.(2021).Climate control on terrestrial biospheric carbon turnover.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,118(8).
MLA Eglinton, Timothy, I,et al."Climate control on terrestrial biospheric carbon turnover".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 118.8(2021).

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来源：植物研究所

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