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Methane, Monsoons, and Modulation of Millennial-Scale Climate 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (9)
作者:  Thirumalai, Kaustubh;  Clemens, Steven C.;  Partin, Judson W.
收藏  |  浏览/下载:9/0  |  提交时间:2020/07/02
methane  monsoon  modulation  orbital forcing  millennial-scale climate variability  late Pleistocene  
Millennial-scale hydroclimate control of tropical soil carbon storage 期刊论文
NATURE, 2020, 581 (7806) : 63-+
作者:  Lam, Tommy Tsan-Yuk;  Jia, Na;  Zhang, Ya-Wei;  Shum, Marcus Ho-Hin;  Jiang, Jia-Fu;  Zhu, Hua-Chen;  Tong, Yi-Gang;  Shi, Yong-Xia;  Ni, Xue-Bing;  Liao, Yun-Shi;  Li, Wen-Juan;  Jiang, Bao-Gui;  Wei, Wei;  Yuan, Ting-Ting;  Zheng, Kui;  Cui, Xiao-Ming;  Li, Jie;  Pei, Guang-Qian
收藏  |  浏览/下载:25/0  |  提交时间:2020/05/13

Over the past 18,000 years, the residence time and amount of soil carbon stored in the Ganges-Brahmaputra basin have been controlled by the intensity of Indian Summer Monsoon rainfall, with greater carbon destabilization during wetter, warmer conditions.


The storage of organic carbon in the terrestrial biosphere directly affects atmospheric concentrations of carbon dioxide over a wide range of timescales. Within the terrestrial biosphere, the magnitude of carbon storage can vary in response to environmental perturbations such as changing temperature or hydroclimate(1), potentially generating feedback on the atmospheric inventory of carbon dioxide. Although temperature controls the storage of soil organic carbon at mid and high latitudes(2,3), hydroclimate may be the dominant driver of soil carbon persistence in the tropics(4,5)  however, the sensitivity of tropical soil carbon turnover to large-scale hydroclimate variability remains poorly understood. Here we show that changes in Indian Summer Monsoon rainfall have controlled the residence time of soil carbon in the Ganges-Brahmaputra basin over the past 18,000 years. Comparison of radiocarbon ages of bulk organic carbon and terrestrial higher-plant biomarkers with co-located palaeohydrological records(6) reveals a negative relationship between monsoon rainfall and soil organic carbon stocks on a millennial timescale. Across the deglaciation period, a depletion of basin-wide soil carbon stocks was triggered by increasing rainfall and associated enhanced soil respiration rates. Our results suggest that future hydroclimate changes in tropical regions are likely to accelerate soil carbon destabilization, further increasing atmospheric carbon dioxide concentrations.


  
Prediction of Dansgaard-Oeschger Events From Greenland Dust Records 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (21) : 12427-12434
作者:  Lohmann, Johannes
收藏  |  浏览/下载:7/0  |  提交时间:2020/02/17
Dansgaard-Oeschger events  abrupt climate change  millennial-scale climate variability  ice cores  Greenland  
A consistent statistical model selection for abrupt glacial climate changes 期刊论文
CLIMATE DYNAMICS, 2019, 52 (11) : 6411-6426
作者:  Lohmann, Johannes;  Ditlevsen, Peter D.
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/26
Dansgaard-Oeschger events  Statistical model comparison  Approximate Bayesian computation  Abrupt climate change  Millennial-scale climate variability  
Impact of climate change on the transition of Neanderthals to modern humans in Europe 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2018, 115 (37) : 9116-9121
作者:  Staubwasser, Michael;  Dragusin, Virgil;  Onac, Bogdan P.;  Assonov, Sergey;  Ersek, Vasile;  Hoffmann, Dirk L.;  Veres, Daniel
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/27
Central Europe  speleothems  millennial-scale climate cycles  stable isotopes  Middle-Upper Paleolithic transition  
Temperature Covariance in Tree Ring Reconstructions and Model Simulations Over the Past Millennium 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2017, 44 (18)
作者:  Hartl-Meier, C. T. M.;  Buntgen, U.;  Smerdon, J. E.;  Zorita, E.;  Krusic, P. J.;  Ljungqvist, F. C.;  Schneider, L.;  Esper, J.
收藏  |  浏览/下载:2/0  |  提交时间:2019/04/09
paleoclimate  spatial temperature synchrony  millennial scale  radiative forcing  proxy model comparison  
Influence of external forcings on abrupt millennial-scale climate changes: a statistical modelling study 期刊论文
CLIMATE DYNAMICS, 2017, 48
作者:  Mitsui, Takahito;  Crucifix, Michel
收藏  |  浏览/下载:9/0  |  提交时间:2019/04/09
Dansgaard-Oeschger events  Abrupt millennial-scale climate changes  Statistical modelling  Orbital insolation forcing  Global ice volume change