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Rapidly-migrating and internally-generated knickpoints can control submarine channel evolution 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Heijnen, Maarten S.;  Clare, Michael A.;  Cartigny, Matthieu J. B.;  Talling, Peter J.;  Hage, Sophie;  Lintern, D. Gwyn;  Stacey, Cooper;  Parsons, Daniel R.;  Simmons, Stephen M.;  Chen, Ye;  Sumner, Esther J.;  Dix, Justin K.;  Clarke, John E. Hughes
收藏  |  浏览/下载:13/0  |  提交时间:2020/06/22
Steady erosion rates in the Himalayas through late Cenozoic climatic changes 期刊论文
NATURE GEOSCIENCE, 2020, 13 (6) : 448-+
作者:  Lenard, Sebastien J. P.;  Lave, Jerome;  France-Lanord, Christian;  Aumaitre, Georges;  Bourles, Didier L.;  Keddadouche, Karim
收藏  |  浏览/下载:8/0  |  提交时间:2020/06/09
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.


  
Spatial and temporal trends in exhumation of the Eastern Himalaya and syntaxis as determined from a multitechnique detrital thermochronological study of the Bengal Fan 期刊论文
GEOLOGICAL SOCIETY OF AMERICA BULLETIN, 2019, 131: 1607-1622
作者:  Najman, Yani;  Mark, Chris;  Barfod, Dan N.;  Carter, Andy;  Parrish, Randy;  Chew, David;  Gemignani, Lorenzo
收藏  |  浏览/下载:4/0  |  提交时间:2019/11/27
Meridional oscillation in genesis location of tropical cyclones in the postmonsoon Bay of Bengal 期刊论文
CLIMATE DYNAMICS, 2019, 53: 2103-2118
作者:  Fan, Kaigui;  Wang, Xidong;  Foltz, Gregory R.;  Balaguru, Karthik
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/27
Bay of Bengal  Tropical cyclone  El Nino-Southern Oscillation  Pacific Decadal Oscillation  
Can climatic signals be discerned in a deep-water sink?: An answer from the Pearl River source-to-sink sediment-routing system 期刊论文
GEOLOGICAL SOCIETY OF AMERICA BULLETIN, 2018, 130: 661-677
作者:  Gong, Chenglin;  Blum, Michael D.;  Wang, Yingmin;  Lin, Changsong;  Xu, Qiang
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/09