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Materials and pathways of the organic carbon cycle through time 期刊论文
NATURE GEOSCIENCE, 2020
作者:  Galvez, Matthieu E.;  Fischer, Woodward W.;  Jaccard, Samuel L.;  Eglinton, Timothy I.
收藏  |  浏览/下载:14/0  |  提交时间:2020/08/09
Mineralogy and geochemistry of Asian dust: dependence on migration path, fractionation, and reactions with polluted air 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (12) : 7411-7428
作者:  Jeong, Gi Young
收藏  |  浏览/下载:5/0  |  提交时间:2020/06/29
The potential impacts of a sulfur- and halogen-rich supereruption such as Los Chocoyos on the atmosphere and climate 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (11) : 6521-6539
作者:  Brenna, Hans;  Kutterolf, Steffen;  Mills, Michael J.;  Krueger, Kirstin
收藏  |  浏览/下载:15/0  |  提交时间:2020/06/09
Effects of atmospheric aerosols on terrestrial carbon fluxes and CO2 concentrations in China 期刊论文
ATMOSPHERIC RESEARCH, 2020, 237
作者:  Xie, Xiaodong;  Wang, Tijian;  Yue, Xu;  Li, Shu;  Zhuang, Bingliang;  Wang, Minghuai
收藏  |  浏览/下载:10/0  |  提交时间:2020/07/02
Aerosols  Diffuse radiation fertilization  Terrestrial carbon fluxes  Carbon dioxide  China  
Abiotic hydrogen (H-2) sources and sinks near the Mid-Ocean Ridge (MOR) with implications for the subseafloor biosphere 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (24) : 13283-13293
作者:  Worman, Stacey L.;  Pratson, Lincoln F.;  Karson, Jeffrey A.;  Schlesinger, William H.
收藏  |  浏览/下载:12/0  |  提交时间:2020/06/09
biogeochemistry  origins of life  hydrogen  Mid-Ocean Ridge  microbes  
Ediacaran reorganization of the marine phosphorus cycle 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (22) : 11961-11967
作者:  Laakso, Thomas A.;  Sperling, Erik A.;  Johnston, David T.;  Knoll, Andrew H.
收藏  |  浏览/下载:9/0  |  提交时间:2020/05/20
Ediacaran  biosphere  sulfate  phopshorus  phosphorite  
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.


  
Pyruvic acid in the boreal forest: gas-phase mixing ratios and impact on radical chemistry 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (6) : 3697-3711
作者:  Eger, Philipp G.;  Schuladen, Jan;  Sobanski, Nicolas;  Fischer, Horst;  Karu, Einar;  Williams, Jonathan;  Riva, Matthieu;  Zha, Qiaozhi;  Ehn, Mikael;  Quelever, Lauriane L. J.;  Schallhart, Simon;  Lelieveld, Jos;  Crowley, John N.
收藏  |  浏览/下载:13/0  |  提交时间:2020/07/02
Limited Archaean continental emergence reflected in an early Archaean O-18-enriched ocean 期刊论文
NATURE GEOSCIENCE, 2020, 13 (3) : 243-+
作者:  Johnson, Benjamin W.;  Wing, Boswell A.
收藏  |  浏览/下载:3/0  |  提交时间:2020/05/13
Mapping the drivers of uncertainty in atmospheric selenium deposition with global sensitivity analysis 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (3) : 1363-1390
作者:  Feinberg, Aryeh;  Maliki, Moustapha;  Stenke, Andrea;  Sudret, Bruno;  Peter, Thomas;  Winkel, Lenny H. E.
收藏  |  浏览/下载:8/0  |  提交时间:2020/08/18