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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.


  
Quasi-Biweekly Oscillation of the South Asian High and Its Role in Connecting the Indian and East Asian Summer Rainfalls 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019
作者:  Wei, Wei;  Zhang, Renhe;  Yang, Song;  Li, Wenhong;  Wen, Min
收藏  |  浏览/下载:7/0  |  提交时间:2020/02/17
South Asian high  Indian summer monsoon  East Asian summer monsoon  intraseasonal variation  quasi-biweekly oscillation  monsoon rainfall  
Local and Regional Indian Summer Monsoon Precipitation Dynamics During Termination II and the Last Interglacial 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (21) : 12454-12463
作者:  Magiera, Matthias;  Lechleitner, Franziska A.;  Erhardt, Andrea M.;  Hartland, Adam;  Kwiecien, Ola;  Cheng, Hai;  Bradbury, Harold J.;  Turchyn, Alexandra V.;  Riechelmann, Sylvia;  Edwards, Lawrence;  Breitenbach, Sebastian F. M.
收藏  |  浏览/下载:8/0  |  提交时间:2020/02/17
speleothem  Marine Isotope Stage 5e  Termination II  seasonality  Indian summer monsoon  dry season rainfall  
Future changes in Indian summer monsoon characteristics under 1.5 and 2 degrees C specific warming levels 期刊论文
CLIMATE DYNAMICS, 2019
作者:  Maharana, P.;  Dimri, A. P.;  Choudhary, A.
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
Indian summer monsoon  CORDEX-SA  SWLs  Rainfall  Wind  Onset  
Role of Arabian Sea warming on the Indian summer monsoon rainfall in a regional climate model 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019
作者:  Mishra, Alok K.;  Dwivedi, Suneet;  Das, Sushant
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
Arabian Sea warming  Indian summer monsoon rainfall  regional climate model  
Resolving the weakening of orographic rainfall over India using a regional climate model RegCM 4.5 期刊论文
ATMOSPHERIC RESEARCH, 2019, 227: 125-139
作者:  Abish, B.;  Arun, K.
收藏  |  浏览/下载:2/0  |  提交时间:2019/11/27
RegCM 4.5  Orographic rainfall  Indian summer monsoon  Climate change  Sulfate aerosols  
Variability of monsoon low-level jet and associated rainfall over India 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019
作者:  Viswanadhapalli, Yesubabu;  Dasari, Hari Prasad;  Dwivedi, Sanjeev;  Madineni, Venkat Ratnam;  Langodan, Sabique;  Hoteit, Ibrahim
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
rainfall  dynamical downscaling  Indian summer monsoon  monsoon depression  monsoon low-level jet  
Moisture flux adjustments in RegCM4 for improved simulation of Indian summer monsoon precipitation 期刊论文
CLIMATE DYNAMICS, 2019, 52 (11) : 7049-7069
作者:  Mohanty, M. R.;  Sinha, P.;  Maurya, R. K. S.;  Mohanty, U. C.
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/26
Auto conversion coefficient  Explicit moisture convergence scheme  RegCM4  Indian summer monsoon rainfall  
Month-to-month variability of Indian summer monsoon rainfall in 2016: role of the Indo-Pacific climatic conditions 期刊论文
CLIMATE DYNAMICS, 2019, 52: 1157-1171
作者:  Chowdary, Jasti S.;  Srinivas, G.;  Du, Yan;  Gopinath, K.;  Gnanaseelan, C.;  Parekh, Anant;  Singh, Prem
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/09
Indian summer monsoon rainfall  El Nino  Tropical cyclones  Sea surface temperature  Sub-seasonal variability  
Origin of Indian summer monsoon rainfall biases in CMIP5 multimodel ensemble 期刊论文
CLIMATE DYNAMICS, 2018, 51: 755-768
作者:  Wang, Ziqian;  Li, Gen;  Yang, Song
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/09
Indian summer monsoon  Rainfall  Modeling biases  Sea surface temperature  Northern Indian Ocean  CMIP5