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Sesquiterpenes dominate monoterpenes in northern wetland emissions 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (11) : 7021-7034
作者:  Hellen, Heidi;  Schallhart, Simon;  Praplan, Arnaud P.;  Tykka, Toni;  Aurela, Mika;  Lohila, Annalea;  Hakola, Hannele
收藏  |  浏览/下载:18/0  |  提交时间:2020/06/16
Late-spring frost risk between 1959 and 2017 decreased in North America but increased in Europe and Asia 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (22) : 12192-12200
作者:  Zohner, Constantin M.;  Mo, Lidong;  Renner, Susanne S.;  Svenning, Jens-Christian;  Vitasse, Yann;  Benito, Blas M.;  Ordonez, Alejandro;  Baumgarten, Frederik;  Bastin, Jean-Francois;  Sebald, Veronica;  Reich, Peter B.;  Liang, Jingjing;  Nabuurs, Gert-Jan;  de-Miguel, Sergio;  Alberti, Giorgio;  Anton-Fernandez, Clara;  Balazy, Radomir;  Braendli, Urs-Beat;  Chen, Han Y. H.;  Chisholm, Chelsea;  Cienciala, Emil;  Dayanandan, Selvadurai;  Fayle, Tom M.;  Frizzera, Lorenzo;  Gianelle, Damiano;  Jagodzinski, Andrzej M.;  Jaroszewicz, Bogdan;  Jucker, Tommaso;  Kepfer-Rojas, Sebastian;  Khan, Mohammed Latif;  Kim, Hyun Seok;  Korjus, Henn;  Johannsen, Vivian Kvist;  Laarmann, Diana;  Lang, Mait;  Zawila-Niedzwiecki, Tomasz;  Niklaus, Pascal A.;  Paquette, Alain;  Pretzsch, Hans;  Saikia, Purabi;  Schall, Peter;  Seben, Vladimir;  Svoboda, Miroslav;  Tikhonova, Elena;  Viana, Helder;  Zhang, Chunyu;  Zhao, Xiuhai;  Crowther, Thomas W.
收藏  |  浏览/下载:19/0  |  提交时间:2020/05/13
climate change  phenology  spring leaf-out  late frost  freezing damage  
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.


  
Ice core records of levoglucosan and dehydroabietic and vanillic acids from Aurora Peak in Alaska since the 1660s: a proxy signal of biomass-burning activities in the North Pacific Rim 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (1) : 597-612
作者:  Pokhrel, Ambarish;  Kawamura, Kimitaka;  Kunwar, Bhagawati;  Ono, Kaori;  Tsushima, Akane;  Seki, Osamu;  Matoba, Sumio;  Shiraiwa, Takayuki
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/02
Importance of dry deposition parameterization choice in global simulations of surface ozone 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2019, 19 (22) : 14365-14385
作者:  Wong, Anthony Y. H.;  Geddes, Jeffrey A.;  Tai, Amos P. K.;  Silva, Sam J.
收藏  |  浏览/下载:5/0  |  提交时间:2020/02/17
Eocene Fagaceae from Patagonia and Gondwanan legacy in Asian rainforests 期刊论文
SCIENCE, 2019, 364 (6444) : 972-+
作者:  Wilf, Peter;  Nixon, Kevin C.;  Gandolfo, Maria A.;  Ruben Cuneo, N.
收藏  |  浏览/下载:1/0  |  提交时间:2019/11/27
Mechanistic evidence for tracking the seasonality of photosynthesis with solar-induced fluorescence 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (24) : 11640-11645
作者:  Magney, Troy S.;  Bowling, David R.;  Logan, Barry A.;  Grossmann, Katja;  Stutz, Jochen;  Blanken, Peter D.;  Burns, Sean P.;  Cheng, Rui;  Garcia, Maria A.;  Kohler, Philipp;  Lopez, Sophia;  Parazoo, Nicholas C.;  Raczka, Brett;  Schimel, David;  Frankenberg, Christian
收藏  |  浏览/下载:24/0  |  提交时间:2019/11/27
solar-induced fluorescence (SIF)  remote sensing  gross primary production (GPP)  photosynthesis  evergreen forest  
Characterization of ozone deposition to a mixed oak-hornbeam forest - flux measurements at five levels above and inside the canopy and their interactions with nitric oxide 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2018, 18 (24) : 17945-17961
作者:  Finco, Angelo;  Coyle, Mhairi;  Nemitz, Eiko;  Marzuoli, Riccardo;  Chiesa, Maria;  Loubet, Benjamin;  Fares, Silvano;  Diaz-Pines, Eugenio;  Gasche, Rainer;  Gerosa, Giacomo
收藏  |  浏览/下载:10/0  |  提交时间:2019/04/09
Increasing extent and intensity of thunderstorms observed over the Congo Basin from 1982 to 2016 期刊论文
ATMOSPHERIC RESEARCH, 2018, 213: 17-26
作者:  Raghavendra, Ajay;  Zhou, Liming;  Jiang, Yan;  Hua, Wenjian
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
Africa  Climate change  Congo rainforest  Inter-tropical convergence zone  Satellite IR brightness temperature  And tropical convection/thunderstorms  
Poleward migration of the destructive effects of tropical cyclones during the 20th century 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2018, 115 (45) : 11543-11548
作者:  Altman, Jan;  Ukhvatkina, Olga N.;  Omelko, Alexander M.;  Macek, Martin;  Plener, Tomas;  Pejcha, Vit;  Cerny, Tomas;  Petrik, Petr;  Srutek, Miroslav;  Song, Jong-Suk;  Zhmerenetsky, Alexander A.;  Vozmishcheva, Anna S.;  Krestov, Pavel, V;  Petrenko, Tatyana Y.;  Treydte, Kerstin;  Dolezal, Jiri
收藏  |  浏览/下载:5/0  |  提交时间:2019/11/27
North Pacific  tropical cyclones  natural hazard  poleward migration  dendrochronology