GSTDTAP

浏览/检索结果: 共13条,第1-10条 帮助

限定条件                        
已选(0)清除 条数/页:   排序方式:
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.


  
Comment on "The global tree restoration potential" 期刊论文
SCIENCE, 2019, 366 (6463)
作者:  Veldman, Joseph W.;  Aleman, Julie C.;  Alvarado, Swanni T.;  Anderson, T. Michael;  Archibald, Sally;  Bond, William J.;  Boutton, Thomas W.;  Buchmann, Nina;  Buisson, Elise;  Canadell, Josep G.;  Dechoum, Michele de Sa;  Diaz-Toribio, Milton H.;  Durigan, Giselda;  Ewel, John J.;  Fernandes, G. Wilson;  Fidelis, Alessandra;  Fleischman, Forrest;  Good, Stephen P.;  Griffith, Daniel M.;  Hermann, Julia-Maria;  Hoffmann, William A.;  Le Stradic, Soizig;  Lehmann, Caroline E. R.;  Mahy, Gregory;  Nerlekar, Ashish N.;  Nippert, Jesse B.;  Noss, Reed F.;  Osborne, Colin P.;  Overbeck, Gerhard E.;  Parr, Catherine L.;  Pausas, Juli G.;  Pennington, R. Toby;  Perring, Michael P.;  Putz, Francis E.;  Ratnam, Jayashree;  Sankaran, Mahesh;  Schmidt, Isabel B.;  Schmitt, Christine B.;  Silveira, Fernando A. O.;  Staver, A. Carla;  Stevens, Nicola;  Still, Christopher J.;  Stromberg, Caroline A. E.;  Temperton, Vicky M.;  Varner, J. Morgan;  Zaloumis, Nicholas P.
收藏  |  浏览/下载:17/0  |  提交时间:2019/11/27
The global soil community and its influence on biogeochemistry 期刊论文
SCIENCE, 2019, 365 (6455) : 772-+
作者:  Crowther, T. W.;  van den Hoogen, J.;  Wan, J.;  Mayes, M. A.;  Keiser, A. D.;  Mo, L.;  Averill, C.;  Maynard, D. S.
收藏  |  浏览/下载:34/0  |  提交时间:2019/11/27
Asynchronous nitrogen supply and demand produce nonlinear plant allocation responses to warming and elevated CO2 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (43) : 21623-21628
作者:  Noyce, Genevieve L.;  Kirwan, Matthew L.;  Rich, Roy L.;  Megonigal, J. Patrick
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/27
climate change  warming  nitrogen cycling  plants  coastal wetland  
Potential shift from a carbon sink to a source in Amazonian peatlands under a changing climate 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2018, 115 (49) : 12407-12412
作者:  Wang, Sirui;  Zhuang, Qianlai;  Lahteenoja, Outi;  Draper, Frederick C.;  Cadillo-Quiroz, Hinsby
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
peatland  modeling  climate  carbon  simulation  
Comment on "Unexpected reversal of C-3 versus C-4 grass response to elevated CO2 during a 20-year field experiment" 期刊论文
SCIENCE, 2018, 361 (6402)
作者:  Wolf, Julie;  Ziska, Lewis
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
Microbial oxidation of lithospheric organic carbon in rapidly eroding tropical mountain soils 期刊论文
SCIENCE, 2018, 360 (6385) : 209-+
作者:  Hemingway, Jordon D.;  Hilton, Robert G.;  Hovius, Niels;  Eglinton, Timothy I.;  Haghipour, Negar;  Wacker, Lukas;  Chen, Meng-Chiang;  Galy, Valier V.
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
Long-term pattern and magnitude of soil carbon feedback to the climate system in a warming world 期刊论文
SCIENCE, 2017, 358 (6359) : 101-104
作者:  Melillo, J. M.;  Frey, S. D.;  DeAngelis, K. M.;  Werner, W. J.;  Bernard, M. J.;  Bowles, F. P.;  Pold, G.;  Knorr, M. A.;  Grandy, A. S.
收藏  |  浏览/下载:8/0  |  提交时间:2019/11/27
Fatty acids in arbuscular mycorrhizal fungi are synthesized by the host plant 期刊论文
SCIENCE, 2017, 356 (6343) : 1175-1178
作者:  Luginbuehl, Leonie H.;  Menard, Guillaume N.;  Kurup, Smita;  Van Erp, Harrie;  Radhakrishnan, Guru V.;  Breakspear, Andrew;  Oldroyd, Giles E. D.;  Eastmond, Peter J.
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/27
Historical climate controls soil respiration responses to current soil moisture 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2017, 114 (24) : 6322-6327
作者:  Hawkes, Christine V.;  Waring, Bonnie G.;  Rocca, Jennifer D.;  Kivlin, Stephanie N.
收藏  |  浏览/下载:8/0  |  提交时间:2019/11/27
microbial  climate change  precipitation  legacies