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Human influence on joint changes in temperature, rainfall and continental aridity 期刊论文
NATURE CLIMATE CHANGE, 2020
作者:  Bonfils, Celine J. W.;  Santer, Benjamin D.;  Fyfe, John C.;  Marvel, Kate;  Phillips, Thomas J.;  Zimmerman, Susan R. H.
收藏  |  浏览/下载:18/0  |  提交时间:2020/07/09
Leaf senescence exhibits stronger climatic responses during warm than during cold autumns 期刊论文
NATURE CLIMATE CHANGE, 2020
作者:  Chen, Lei;  Hanninen, Heikki;  Rossi, Sergio;  Smith, Nicholas G.;  Pau, Stephanie;  Liu, Zhiyong;  Feng, Guanqiao;  Gao, Jie;  Liu, Jianquan
收藏  |  浏览/下载:11/0  |  提交时间:2020/07/09
Heatwave effects on gross primary production of northern mid-latitude ecosystems 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (7)
作者:  Xu, Hang;  Xiao, Jingfeng;  Zhang, Zhiqiang
收藏  |  浏览/下载:13/0  |  提交时间:2020/08/18
heat wave  photosynthesis  biophysical regulations  drought  ecosystem type  plant functional type  FLUXNET  
Compound Drought and Heatwaves at a Global Scale: The Role of Natural Climate Variability-Associated Synoptic Patterns and Land-Surface Energy Budget Anomalies 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (11)
作者:  Mukherjee, Sourav;  Ashfaq, Moetasim;  Mishra, Ashok Kumar
收藏  |  浏览/下载:8/0  |  提交时间:2020/08/18
compound drought and heatwave  ENSO  PDO  NAO  mechanistic understanding  
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.


  
Contrasting drought impacts on the start of phenological growing season in Northern China during 1982-2015 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019
作者:  Deng, Haoyu;  Yin, Yunhe;  Wu, Shaohong;  Xu, Xiaofeng
收藏  |  浏览/下载:5/0  |  提交时间:2020/02/17
drought  growing season  Northern China  phenology  
Hydroclimate patterns over the Northern Hemisphere when megadroughts occurred in North China during the last millennium 期刊论文
CLIMATIC CHANGE, 2019, 157 (3-4) : 365-385
作者:  Bai, Mengxin;  Zheng, Jingyun;  Hao, Zhixin;  Zhang, Xuezhen;  Zeng, Gang
收藏  |  浏览/下载:13/0  |  提交时间:2020/02/17
Global Monsoon Responses to Decadal Sea Surface Temperature Variations during the Twentieth Century: Evidence from AGCM Simulations 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (22) : 7675-7695
作者:  Jiang, Jie;  Zhou, Tianjun
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
Atmospheric circulation  Monsoons  Sea surface temperature  Moisture  moisture budget  General circulation models  Interdecadal variability  
Quantifying the Local Effect of Northern Hemisphere Atmospheric Blocks on the Persistence of Summer Hot and Dry Spells 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (16) : 10101-10111
作者:  Rothlisberger, Matthias;  Martius, Olivia
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
Last phase of the Little Ice Age forced by volcanic eruptions 期刊论文
NATURE GEOSCIENCE, 2019, 12 (8) : 650-+
作者:  Bronnimann, Stefan;  Franke, Jorg;  Nussbaumer, Samuel U.;  Zumbuhl, Heinz J.;  Steiner, Daniel;  Trachsel, Mathias;  Hegerl, Gabriele C.;  Schurer, Andrew;  Worni, Matthias;  Malik, Abdul;  Fluckiger, Julian;  Raible, Christoph C.
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27