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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:27/0  |  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.


  
Estimating site-specific optimum air temperature and assessing its effect on the photosynthesis of grasslands in mid- to high-latitudes 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (3)
作者:  Chang, Qing;  Xiao, Xiangming;  Wu, Xiaocui;  Doughty, Russell;  Jiao, Wenzhe;  Bajgain, Rajen;  Qin, Yuanwei;  Wang, Jie
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/02
eddy flux tower sites  gross primary productivity  EVI  vegetation productivity model  
Exposure to cold temperature affects the spring phenology of Alaskan deciduous vegetation types 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (2)
作者:  Shi, Mingjie;  Parazoo, Nicholas C.;  Jeong, Su-Jong;  Birch, Leah;  Lawrence, Peter;  Euskirchen, Eugenie S.;  Miller, Charles E.
收藏  |  浏览/下载:12/0  |  提交时间:2020/07/02
Alaskan deciduous vegetation  leaf budburst  GPP onset  community land model  chilling requirement  
A Stochastic Approach to Modeling Tidal Creek Evolution: Exploring Environmental Influences on CreekTopologies Through Ensemble Predictions 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (23) : 13836-13844
作者:  Li, Xiaorong;  Leonardi, Nicoletta;  Plater, Andrew J.
收藏  |  浏览/下载:5/0  |  提交时间:2020/02/17
tidal creek evolution  stochastic simulation  ensemble predictions  wetland topography  vegetation  reduced complexity model  
Sensitivity analysis of the typhoon disturbance effect on forest dynamics and carbon balance in the future in a cool-temperate forest in northern Japan by using SEIB-DGVM 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 451
作者:  Wu, Lan;  Kato, Tomomichi;  Sato, Hisashi;  Hirano, Takashi;  Yazaki, Tomotsugu
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/27
Dynamic global vegetation model (DGVM)  Forest structure  Tomakomai forest  Typhoon frequency  Typhoon intensity  
Climate and plant trait strategies determine tree carbon allocation to leaves and mediate future forest productivity 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (10) : 3395-3405
作者:  Trugman, Anna T.;  Anderegg, Leander D. L.;  Wolfe, Brett T.;  Birami, Benjamin;  Ruehr, Nadine K.;  Detto, Matteo;  Bartlete, Megan K.;  Anderegg, William R. L.
收藏  |  浏览/下载:18/0  |  提交时间:2019/11/27
aridity gradient  carbon allocation  climate change  CO2 fertilization  leaf area  plant hydraulic traits  sapwood area  vegetation model  
Modeling the impact of liana infestation on the demography and carbon cycle of tropical forests 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (11) : 3767-3780
作者:  di Porcia e Brugnera, Manfredo;  Meunier, Felicien;  Longo, Marcos;  Moorthy, Sruthi M. Krishna;  De Deurwaerder, Hannes;  Schnitzer, Stefan A.;  Bonal, Damien;  Faybishenko, Boris;  Verbeeck, Hans
收藏  |  浏览/下载:15/0  |  提交时间:2019/11/27
carbon dynamics  dynamic global vegetation model  ecology  lianas  plant functional type  tropical forest  
Widespread drought-induced tree mortality at dry range edges indicates that climate stress exceeds species' compensating mechanisms 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (11) : 3793-3802
作者:  Anderegg, William R. L.;  Anderegg, Leander D. L.;  Kerr, Kelly L.;  Trugman, Anna T.
收藏  |  浏览/下载:8/0  |  提交时间:2019/11/27
climate change  extreme events  plant traits  species distribution  vegetation model  
Malay Archipelago Forest Loss to Cash Crops and Urban Expansion Contributes to Weaken the Asian Summer Monsoon: An Atmospheric Modeling Study 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (11) : 3189-3205
作者:  Huang, Shihming;  Oey, Leo
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/26
Atmosphere-land interaction  Atmospheric circulation  Monsoons  Vegetation  Land surface model  Climate variability  
Evapotranspiration Partitioning in CMIP5 Models: Uncertainties and Future Projections 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (10) : 2653-2671
作者:  Berg, Alexis;  Sheffield, Justin
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/26
Vegetation-atmosphere interactions  Evapotranspiration  Climate models  Land surface model  Model evaluation  performance