Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1613889114 |
Holocene peatland and ice-core data constraints on the timing and magnitude of CO2 emissions from past land use | |
Stocker, Benjamin David1,2,3; Yu, Zicheng4; Massa, Charly5; Joos, Fortunat3,6 | |
2017-02-14 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2017 |
卷号 | 114期号:7页码:1492-1497 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Switzerland; USA |
英文摘要 | CO2 emissions from preindustrial land-use change (LUC) are subject to large uncertainties. Although atmospheric CO2 records suggest only a small land carbon (C) source since 5,000 y before present (5 kyBP), the concurrent C sink by peat buildup could mask large early LUC emissions. Here, we combine updated continuous peat C reconstructions with the land C balance inferred from double deconvolution analyses of atmospheric CO2 and delta C-13 at different temporal scales to investigate the terrestrial C budget of the Holocene and the last millennium and constrain LUC emissions. LUC emissions are estimated with transient model simulations for diverging published scenarios of LU area change and shifting cultivation. Our results reveal a large terrestrial no C source after the Mid-Holocene (66 +/- 25 PgC at 7-5 kyBP and 115 +/- 27 PgC at 5-3 kyBP). Despite high simulated per-capita CO2 emissions from LUC in early phases of agricultural development, humans emerge as a driver with dominant global C cycle impacts only in the most recent three millennia. Sole anthropogenic causes for particular variations in the CO2 record (similar to 20 ppm rise after 7 kyBP and similar to 10 ppm fall between 1500 CE and 1600 CE) are not supported. This analysis puts a strong constraint on preindustrial vs. industrial-era LUC emissions and suggests that upper-end scenarios for the extent of agricultural expansion before 1850 CE are not compatible with the C budget thereafter. |
英文关键词 | carbon cycle Anthropocene agriculture peatland ice core |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000393989300045 |
WOS关键词 | CARBON-CYCLE DYNAMICS ; LAST GLACIAL MAXIMUM ; ATMOSPHERIC CO2 ; CLIMATE-CHANGE ; NORTHERN PEATLANDS ; TAYLOR-DOME ; MIDHOLOCENE ; SENSITIVITY ; VEGETATION ; FIRE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204849 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Imperial Coll London, Dept Life Sci, Silwood Pk, Ascot SL5 7PY, Berks, England; 2.Eidgenoss Tech Hsch Zurich, Inst Atmospher & Climate Sci, CH-8092 Zurich, Switzerland; 3.Univ Bern, Inst Phys, Climate & Environm Phys, CH-3012 Bern, Switzerland; 4.Lehigh Univ, Dept Earth & Environm Sci, Bethlehem, PA 18015 USA; 5.Univ Hawaii, Dept Geog, Honolulu, HI 96822 USA; 6.Univ Bern, Oeschger Ctr Climate Change Res, CH-3012 Bern, Switzerland |
推荐引用方式 GB/T 7714 | Stocker, Benjamin David,Yu, Zicheng,Massa, Charly,et al. Holocene peatland and ice-core data constraints on the timing and magnitude of CO2 emissions from past land use[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(7):1492-1497. |
APA | Stocker, Benjamin David,Yu, Zicheng,Massa, Charly,&Joos, Fortunat.(2017).Holocene peatland and ice-core data constraints on the timing and magnitude of CO2 emissions from past land use.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(7),1492-1497. |
MLA | Stocker, Benjamin David,et al."Holocene peatland and ice-core data constraints on the timing and magnitude of CO2 emissions from past land use".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.7(2017):1492-1497. |
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