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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.


  
How much of Typhoon Morakot's extreme rainfall is attributable to anthropogenic climate change? 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (8) : 3454-3464
作者:  Wang, Chung-Chieh;  Tseng, Li-Shan;  Huang, Chien-Chang;  Lo, Shih-How;  Chen, Cheng-Ta;  Chuang, Pi-Yu;  Su, Nan-Chou;  Tsuboki, K.
收藏  |  浏览/下载:14/0  |  提交时间:2019/11/26
anthropogenic climate change  extreme rainfall  secondary circulation  sensitivity experiments  water budget analysis  
Multi-scale structure of tropical rainfall response to SST fluctuations 期刊论文
CLIMATE RESEARCH, 2019, 78 (2) : 165-178
作者:  Nogueira, Miguel
收藏  |  浏览/下载:4/0  |  提交时间:2019/11/26
Tropical Rainfall  Multiscale Analysis  Rainfall sensitivity  Statistical modelling  
Simulation of a heavy rainfall event over Chennai in Southeast India using WRF: Sensitivity to microphysics parameterization 期刊论文
ATMOSPHERIC RESEARCH, 2018, 210: 83-99
作者:  Mohan, P. Reshmi;  Srinivas, C., V;  Yesubabu, V;  Baskaran, R.;  Venkatraman, B.
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/09
Heavy rainfall  Sensitivity  Cloud microphysics  WRF  
Impact of Synoptic-Scale Factors on Rainfall Forecast in Different Stages of a Persistent Heavy Rainfall Event in South China 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2018, 123 (7) : 3574-3593
作者:  Zhang, Murong;  Meng, Zhiyong
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
persistent heavy rainfall  south China  stage-dependent rainfall forecast skills  ensemble-based sensitivity analysis  low-level jet  
Sensitivity of Extreme Rainfall to Atmospheric Moisture Content in the Arid/Semiarid Southwestern United States: Implications for Probable Maximum Precipitation Estimates 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2018, 123 (3) : 1638-1656
作者:  Yang, Long;  Smith, James
收藏  |  浏览/下载:0/0  |  提交时间:2019/04/09
extreme rainfall  moisture content  sensitivity  PMP  arid  semiarid