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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.


  
Simulating Water Residence Time in the Coastal Ocean: A Global Perspective 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (23) : 13910-13919
作者:  Liu, Xiao;  Dunne, John P.;  Stock, Charles A.;  Harrison, Matthew J.;  Adcroft, Alistair;  Resplandy, Laure
收藏  |  浏览/下载:6/0  |  提交时间:2020/02/17
residence time  coastal geometry and processes  global ocean models  coast-ocean exchanges  
Pollution-induced slowdown of coarse woody debris decomposition differs between two coniferous tree species 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 448: 312-320
作者:  Dulya, Olesya, V;  Bergman, Igor E.;  Kukarskih, Vladimir V.;  Vorobeichik, Evgenii L.;  Smirnov, Georgii Yu;  Mikryukov, Vladimir S.
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/27
Downed logs  Wood decay classes  Rate of organic matter decomposition  Residence time  Air pollution  Copper smelter  Heavy metals  Dendrochronology  Wood density  Dynamic probing  Penetration resistance  
Dynamics of Surface-Water Connectivity in a Low-Gradient Meandering River Floodplain 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (3) : 1849-1870
作者:  Czuba, Jonathan A.;  David, Scott R.;  Edmonds, Douglas A.;  Ward, Adam S.
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/26
floodplain channels  complex floodplain  river-floodplain exchange  connectivity  residence time  bankfull flow  
Land Surface Processes Create Patterns in Atmospheric Residence Time of Water 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (2) : 583-600
作者:  Tuinenburg, O. A.;  van der Ent, R. J.
收藏  |  浏览/下载:5/0  |  提交时间:2019/04/09
moisture  residence time  atmosphere  transpiration  evaporation  
Transit Times and Rapid Chemical Equilibrium Explain Chemostasis in Glacial Meltwater Streams in the McMurdo Dry Valleys, Antarctica 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (24) : 13322-13331
作者:  Wlostowski, A. N.;  Gooseff, M. N.;  McKnight, D. M.;  Lyons, W. B.
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
chemostasis  residence time  Antarctica  hydrology  water quality  hyporheic zone  
Regionalization of Groundwater Residence Time Using Metamodeling 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (9) : 6357-6373
作者:  Starn, J. J.;  Belitz, K.
收藏  |  浏览/下载:5/0  |  提交时间:2019/04/09
groundwater  residence-time  metamodel  age distribution  particle models  advective transport  
Digging deeper: A holistic perspective of factors affecting soil organic carbon sequestration in agroecosystems 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (8) : 3285-3301
作者:  Lal, Rattan
收藏  |  浏览/下载:5/0  |  提交时间:2019/04/09
climate change  mean residence time  soil health  sustainable intensification  the global carbon cycle  
Time-Varying Storage-Water Age Relationships in a Catchment With a Mediterranean Climate 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (6) : 3988-4008
作者:  Rodriguez, Nicolas B.;  McGuire, Kevin J.;  Klaus, Julian
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
catchment storage  StorAge Selection functions  Mediterranean climate  travel time  residence time  stable isotope  
Matrix approach to land carbon cycle modeling: A case study with the Community Land Model 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (3) : 1394-1404
作者:  Huang, Yuanyuan;  Lu, Xingjie;  Shi, Zheng;  Lawrence, David;  Koven, Charles D.;  Xia, Jianyang;  Du, Zhenggang;  Kluzek, Erik;  Luo, Yiqi
收藏  |  浏览/下载:9/0  |  提交时间:2019/04/09
carbon storage  CO2 fertilization  data assimilation  residence time  soil organic matter