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国际研究称海洋的碳汇作用正在减弱 快报文章
气候变化快报,2023年第17期
作者:  裴惠娟
Microsoft Word(14Kb)  |  收藏  |  浏览/下载:494/0  |  提交时间:2023/09/05
Ocean  Anthropogenic Carbon  Decadal Trends  
Asynchronous carbon sink saturation in African and Amazonian tropical forests 期刊论文
NATURE, 2020, 579 (7797) : 80-+
作者:  Wannes Hubau;  Simon L. Lewis;  Oliver L. Phillips;  Kofi Affum-Baffoe;  Hans Beeckman;  Aida Cuní;  -Sanchez;  Armandu K. Daniels;  Corneille E. N. Ewango;  Sophie Fauset;  Jacques M. Mukinzi;  Douglas Sheil;  Bonaventure Sonké;  Martin J. P. Sullivan;  Terry C. H. Sunderland;  Hermann Taedoumg;  Sean C. Thomas;  Lee J. T. White;  Katharine A. Abernethy;  Stephen Adu-Bredu;  Christian A. Amani;  Timothy R. Baker;  Lindsay F. Banin;  Fidè;  le Baya;  Serge K. Begne;  Amy C. Bennett;  Fabrice Benedet;  Robert Bitariho;  Yannick E. Bocko;  Pascal Boeckx;  Patrick Boundja;  Roel J. W. Brienen;  Terry Brncic;  Eric Chezeaux;  George B. Chuyong;  Connie J. Clark;  Murray Collins;  James A. Comiskey;  David A. Coomes;  Greta C. Dargie;  Thales de Haulleville;  Marie Noel Djuikouo Kamdem;  Jean-Louis Doucet;  Adriane Esquivel-Muelbert;  Ted R. Feldpausch;  Alusine Fofanah;  Ernest G. Foli;  Martin Gilpin;  Emanuel Gloor;  Christelle Gonmadje;  Sylvie Gourlet-Fleury;  Jefferson S. Hall;  Alan C. Hamilton;  David J. Harris;  Terese B. Hart;  Mireille B. N. Hockemba;  Annette Hladik;  Suspense A. Ifo;  Kathryn J. Jeffery;  Tommaso Jucker;  Emmanuel Kasongo Yakusu;  Elizabeth Kearsley;  David Kenfack;  Alexander Koch;  Miguel E. Leal;  Aurora Levesley;  Jeremy A. Lindsell;  Janvier Lisingo;  Gabriela Lopez-Gonzalez;  Jon C. Lovett;  Jean-Remy Makana;  Yadvinder Malhi;  Andrew R. Marshall;  Jim Martin;  Emanuel H. Martin;  Faustin M. Mbayu;  Vincent P. Medjibe;  Vianet Mihindou;  Edward T. A. Mitchard;  Sam Moore;  Pantaleo K. T. Munishi;  Natacha Nssi Bengone;  Lucas Ojo;  Fidè;  le Evouna Ondo;  Kelvin S.-H. Peh;  Georgia C. Pickavance;  Axel Dalberg Poulsen;  John R. Poulsen;  Lan Qie;  Jan Reitsma;  Francesco Rovero;  Michael D. Swaine;  Joey Talbot;  James Taplin;  David M. Taylor;  Duncan W. Thomas;  Benjamin Toirambe;  John Tshibamba Mukendi;  Darlington Tuagben;  Peter M. Umunay;  Geertje M. F. van der Heijden;  Hans Verbeeck;  Jason Vleminckx;  Simon Willcock;  Hannsjö;  rg Wö;  ll;  John T. Woods;  Lise Zemagho
收藏  |  浏览/下载:23/0  |  提交时间:2020/05/13

Structurally intact tropical forests sequestered about half of the global terrestrial carbon uptake over the 1990s and early 2000s, removing about 15 per cent of anthropogenic carbon dioxide emissions(1-3). Climate-driven vegetation models typically predict that this tropical forest '  carbon sink'  will continue for decades(4,5). Here we assess trends in the carbon sink using 244 structurally intact African tropical forests spanning 11 countries, compare them with 321 published plots from Amazonia and investigate the underlying drivers of the trends. The carbon sink in live aboveground biomass in intact African tropical forests has been stable for the three decades to 2015, at 0.66 tonnes of carbon per hectare per year (95 per cent confidence interval 0.53-0.79), in contrast to the long-term decline in Amazonian forests(6). Therefore the carbon sink responses of Earth'  s two largest expanses of tropical forest have diverged. The difference is largely driven by carbon losses from tree mortality, with no detectable multi-decadal trend in Africa and a long-term increase in Amazonia. Both continents show increasing tree growth, consistent with the expected net effect of rising atmospheric carbon dioxide and air temperature(7-9). Despite the past stability of the African carbon sink, our most intensively monitored plots suggest a post-2010 increase in carbon losses, delayed compared to Amazonia, indicating asynchronous carbon sink saturation on the two continents. A statistical model including carbon dioxide, temperature, drought and forest dynamics accounts for the observed trends and indicates a long-term future decline in the African sink, whereas the Amazonian sink continues to weaken rapidly. Overall, the uptake of carbon into Earth'  s intact tropical forests peaked in the 1990s. Given that the global terrestrial carbon sink is increasing in size, independent observations indicating greater recent carbon uptake into the Northern Hemisphere landmass(10) reinforce our conclusion that the intact tropical forest carbon sink has already peaked. This saturation and ongoing decline of the tropical forest carbon sink has consequences for policies intended to stabilize Earth'  s climate.


  
Towards normal Siberian winter temperatures? 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (11) : 4567-4574
作者:  Koenigk, Torben;  Fuentes-Franco, Ramon
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
Arctic sea ice reduction  climate variability  North Atlantic Oscillation  Pacific Decadal Oscillation  Siberian cooling  winter temperature trends  
Temperature trends in Hawai?i: A century of change, 1917-2016 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (10) : 3987-4001
作者:  McKenzie, Marie M.;  Giambelluca, Thomas W.;  Diaz, Henry F.
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
climate change  El Nino-southern oscillation  Hawai?i  Pacific decadal oscillation  radiosonde observations  temperature trends  
Assessing the internal variability in multi-decadal trends of summer surface air temperature over East Asia with a large ensemble of GCM simulations 期刊论文
CLIMATE DYNAMICS, 2019, 52: 6229-6242
作者:  Hu, Kaiming;  Huang, Gang;  Xie, Shang-Ping
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/26
East Asian summer surface air temperature  Internal variability  Multi-decadal trends  
Recent Tropical Expansion: Natural Variability or Forced Response? 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (5) : 1551-1571
作者:  Grise, Kevin M.;  Davis, Sean M.;  Simpson, Isla R.;  Waugh, Darryn W.;  Fu, Qiang;  Allen, Robert J.;  Rosenlof, Karen H.;  Ummenhofer, Caroline C.;  Karnauskas, Kristopher B.;  Maycock, Amanda C.;  Quan, Xiao-Wei;  Birner, Thomas;  Staten, Paul W.
收藏  |  浏览/下载:12/0  |  提交时间:2019/04/09
Hadley circulation  Climate models  Reanalysis data  Multidecadal variability  Pacific decadal oscillation  Trends  
Observed Decadal Transition in Trend of Autumn Rainfall over Central China in the Late 1990s 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (5) : 1395-1409
作者:  Wang, Zunya;  Zhou, Botao
收藏  |  浏览/下载:0/0  |  提交时间:2019/04/09
Precipitation  Climate change  Climatology  Decadal variability  Trends  
Predictability of Multiyear Trends of the Pacific Decadal Oscillation in an MPI-ESM Hindcast Ensemble 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (1) : 318-325
作者:  Wiegand, K. N.;  Brune, S.;  Baehr, J.
收藏  |  浏览/下载:1/0  |  提交时间:2019/04/09
PDO  decadal  trends  predictability  Pacific  ocean  
Trends of daily precipitation concentration in Central-Southern Chile 期刊论文
ATMOSPHERIC RESEARCH, 2019, 215: 85-98
作者:  Sarricolea, Pablo;  Meseguer-Ruiz, Oliver;  Serrano-Notivoli, Roberto;  Victoria Soto, Marla;  Martin-Vide, Javier
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/09
Concentration Index  Chile  Daily precipitation  Moving windows  Pacific Decadal Oscillation  Precipitation trends  
Distinguishing Trends and Shifts from Memory in Climate Data 期刊论文
JOURNAL OF CLIMATE, 2018, 31 (23) : 9519-9543
作者:  Beaulieu, Claudie;  Killick, Rebecca
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
Changepoint analysis  Regression analysis  Time series  Interannual variability  Pacific decadal oscillation  Trends