GSTDTAP

浏览/检索结果: 共9条,第1-9条 帮助

限定条件                    
已选(0)清除 条数/页:   排序方式:
Stratocumulus cloud clearings: statistics from satellites, reanalysis models, and airborne measurements 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (8) : 4637-4665
作者:  Dadashazar, Hossein;  Crosbie, Ewan;  Majdi, Mohammad S.;  Panahi, Milad;  Moghaddam, Mohammad A.;  Behrangi, Ali;  Brunke, Michael;  Zeng, Xubin;  Jonsson, Haflidi H.;  Sorooshian, Armin
收藏  |  浏览/下载:9/0  |  提交时间:2020/05/13
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:25/0  |  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.


  
Significant emissions of dimethyl sulfide and monoterpenes by big-leaf mahogany trees: discovery of a missing dimethyl sulfide source to the atmospheric environment 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (1) : 375-389
作者:  Vettikkat, Lejish;  Sinha, Vinayak;  Datta, Savita;  Kumar, Ashish;  Hakkim, Haseeb;  Yadav, Priya;  Sinha, Baerbel
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/02
Differential soil fungus accumulation and density dependence of trees in a subtropical forest 期刊论文
SCIENCE, 2019, 366 (6461) : 124-+
作者:  Chen, Lei;  Swenson, Nathan G.;  Ji, Niuniu;  Mi, Xiangcheng;  Ren, Haibao;  Guo, Liangdong;  Ma, Keping
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/27
Herbivores as drivers of negative density dependence in tropical forest saplings 期刊论文
SCIENCE, 2019, 363 (6432) : 1213-+
作者:  Forrister, Dale L.;  Endara, Maria-Jose;  Younkin, Gordon C.;  Coley, Phyllis D.;  Kursar, Thomas A.
收藏  |  浏览/下载:2/0  |  提交时间:2019/11/27
North America's oldest boreal trees are more efficient water users due to increased [CO2], but do not grow faster 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (7) : 2749-2754
作者:  Giguere-Croteau, Claudie;  Boucher, Etienne;  Bergeron, Yves;  Girardin, Martin P.;  Drobyshev, Igor;  Silva, Lucas C. R.;  Helie, Jean-Francois;  Garneau, Michelle
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/27
water use efficiency  carbon dioxide  stable isotopes  productivity  boreal forest  
Photoperiodic control of seasonal growth is mediated by ABA acting on cell-cell communication 期刊论文
SCIENCE, 2018, 360 (6385) : 212-214
作者:  Tylewicz, S.;  Petterle, A.;  Marttila, S.;  Miskolczi, P.;  Azeez, A.;  Singh, R. K.;  Immanen, J.;  Mahler, N.;  Hvidsten, T. R.;  Eklund, D. M.;  Bowman, J. L.;  Helariutta, Y.;  Bhalerao, R. P.
收藏  |  浏览/下载:17/0  |  提交时间:2019/11/27
New perspective on spring vegetation phenology and global climate change based on Tibetan Plateau tree-ring data 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2017, 114 (27) : 6966-6971
作者:  Yang, Bao;  He, Minhui;  Shishov, Vladimir;  Tychkov, Ivan;  Vaganov, Eugene;  Rossi, Sergio;  Ljungqvist, Fredrik Charpentier;  Braeuning, Achim;  Griessinger, Jussi
收藏  |  浏览/下载:8/0  |  提交时间:2019/11/27
tree rings  cambial activity  plant phenology  climate change  Tibetan Plateau  
Light-driven growth in Amazon evergreen forests explained by seasonal variations of vertical canopy structure 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2017, 114 (10) : 2640-2644
作者:  Tang, Hao;  Dubayah, Ralph
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
Amazon  precipitation  phenology  forest structure  remote sensing