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Atlantic-Pacific Gradients Drive Last Millennium Hydroclimate Variability in Mesoamerica 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (13)
作者:  Bhattacharya, Tripti;  Coats, Sloan
收藏  |  浏览/下载:10/0  |  提交时间:2020/06/16
Central America  hydroclimate  paleoclimate  tropical variability  last millennium  proxy-model comparison  
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.


  
Identifying strong signals between low-frequency climate oscillations and annual precipitation using correlation analysis 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (12) : 4883-4894
作者:  Giovannettone, Jason;  Zhang, Yu
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
climate variability  ENSO  hydroclimate indices  low-frequency oscillations  MJO  precipitation  
European warm-season temperature and hydroclimate since 850 CE 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (8)
作者:  Ljungqvist, Fredrik Charpentier;  Seim, Andrea;  Krusic, Paul J.;  Gonzalez-Rouco, Jesus Fidel;  Werner, Johannes P.;  Cook, Edward R.;  Zorita, Eduardo;  Luterbacher, Juerg;  Xoplaki, Elena;  Destouni, Georgia;  Garcia-Bustainante, Elena;  Aguilar, Camilo Andres Melo;  Seftigen, Kristina;  Wang, Jianglin;  Gagen, Mary H.;  Esper, Jan;  Solomina, Olga;  Fleitmann, Dominik;  Buntgen, Ulf
收藏  |  浏览/下载:5/0  |  提交时间:2019/11/27
climate variability  climate model simulations  gridded climate reconstructions  hydroclimate  Europe  past millennium  tree-ring data  
Spatial and temporal patterns of drought in Oklahoma (1901-2014) 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (7) : 3365-3378
作者:  Tian, Liyan;  Quiring, Steven M.
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/26
drought  hydroclimate  precipitation  spatiotemporal  SPEI  trend  variability  
Mediterranean winter snowfall variability over the past millennium 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (1) : 384-394
作者:  Diodato, Nazzareno;  Buntgen, Ulf;  Bellocchi, Gianni
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/09
Atlantic multidecadal variability  climate reconstruction  Mediterranean basin  snowfall variability  winter hydroclimate  
The Threat of Multi-Year Drought in Western Amazonia 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (9) : 5890-5904
作者:  Parsons, L. A.;  LeRoy, S.;  Overpeck, J. T.;  Bush, M.;  Cardenes-Sandi, G. M.;  Saleska, S.
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/09
Amazon  drought  hydroclimate  climate variability  climate mode  paleoclimate  
Extreme reversals in successive winter season precipitation anomalies across the Western United States, 1895-2015 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2018, 38 (3) : 1520-1532
作者:  Marston, Michael L.;  Ellis, Andrew W.
收藏  |  浏览/下载:2/0  |  提交时间:2019/04/09
precipitation variability  hydroclimate extremes  Western United States  
Potential for tree rings to reveal spatial patterns of past drought variability across western Australia 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2018, 13 (2)
作者:  O&;  39;Donnell, Alison J.
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/09
Palmer Drought Severity Index (PDSI)  drought atlas  dendrochronology  hydroclimate variability  dendroclimatology  
Hydrometric Data Rescue in the Parana River Basin 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (2) : 1368-1381
作者:  Antico, Andres;  Aguiar, Ricardo O.;  Amsler, Mario L.
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/09
Historical hydrometric data  Parana River  data rescue  Hydroclimate variability  ENSO  IPO