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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: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.


  
Ocean-Atmosphere Trajectories of Extended Drought in Southwestern North America 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (16) : 8953-8971
作者:  Parsons, Luke A.;  Coats, Sloan
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/27
drought  climate dynamics  teleconnections  southwest  climate model  tropical Pacific  
Tree rings reveal hydroclimatic fingerprints of the Pacific Decadal Oscillation on the Tibetan Plateau 期刊论文
CLIMATE DYNAMICS, 2019, 53: 1023-1037
作者:  Lyu, Lixin;  Buentgen, Ulf;  Treydte, Kerstin;  Yu, Kailiang;  Liang, Hanxue;  Reinig, Frederick;  Nievergelt, Daniel;  Li, Mai-He;  Cherubini, Paolo
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/26
Climate dynamics  Dendroclimatology  Drought extremes  Hydroclimate  Proxy reconstruction  Relative humidity  Tree rings  
The persistent decline of patterned woody vegetation: The tiger bush in the context of the regional Sahel greening trend 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (6) : 2633-2648
作者:  Trichon, Valerie;  Hiernaux, Pierre;  Walcker, Romain;  Mougin, Eric
收藏  |  浏览/下载:4/0  |  提交时间:2019/04/09
long duration drought  re-greening  Sahel  surface hydrology  tiger bush  woody population dynamics  
Environmental heterogeneity and biotic interactions mediate climate impacts on tropical forest regeneration 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (2) : E692-E704
作者:  Uriarte, Maria;  Muscarella, Robert;  Zimmerman, Jess K.
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
climate refugia  density dependence  drought  seedling dynamics  solar radiation  
Factors affecting forest dynamics in the Iberian Peninsula from 1987 to 2012. The role of topography and drought 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2017, 406
作者:  Jose Vidal-Macua, Juan;  Ninyerola, Miguel;  Zabala, Alaitz;  Domingo-Marimon, Cristina;  Pons, Xavier
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/09
Forest dynamics  Ecological succession  Forest shifts  Iberian Peninsula  Driving factors  Drought  Boosted regression trees  Conifer species  Broadleaf evergreen species  Broadleaf deciduous species  
Intra-annual plasticity of growth mediates drought resilience over multiple years in tropical seedling communities 期刊论文
GLOBAL CHANGE BIOLOGY, 2017, 23 (10)
作者:  O&;  39;Brien, Michael J.
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
climate change  drought frequency  forest dynamics  phenological shifts  plant-climate interactions  recovery  resistance  
Reconciling seasonal hydraulic risk and plant water use through probabilistic soil-plant dynamics 期刊论文
GLOBAL CHANGE BIOLOGY, 2017, 23 (9)
作者:  Feng, Xue;  Dawson, Todd E.;  Ackerly, David D.;  Santiago, Louis S.;  Thompson, Sally E.
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
drought response  plant hydraulic risk  rainfall variability  soil-plant feedback  stochastic soil moisture dynamics  
Atmospheric circulation patterns explaining climatological drought dynamics in the boreal environment of Finland, 1962-2011 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2017, 37
作者:  Irannezhad, Masoud;  Ahmadi, Behzad;  Klove, Bjorn;  Moradkhani, Hamid
收藏  |  浏览/下载:4/0  |  提交时间:2019/04/09
atmospheric circulation  drought dynamics  SPEI  boreal environment  Finland