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Pathways for resilience to climate change in African cities 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (7)
作者:  Kareem, Buyana;  Lwasa, Shuaib;  Tugume, Denis;  Mukwaya, Paul;  Walubwa, Jacqueline;  Owuor, Samuel;  Kasaija, Peter;  Sseviiri, Hakimu;  Nsangi, Gloria;  Byarugaba, Disan
收藏  |  浏览/下载:11/0  |  提交时间:2020/08/18
climate change  resilience  African cities  pathways  sustainability  
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.


  
How Far North Did the African Monsoon Fringe Expand During the African Humid Period? Insights From Southwest Moroccan Speleothems 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (23) : 14093-14102
作者:  Sha, Lijuan;  Brahim, Yassine Ait;  Wassenburg, Jasper A.;  Yin, Jianjun;  Peros, Matthew;  Cruz, Francisco W.;  Cai, Yanjun;  Li, Hanying;  Du, Wenjing;  Zhang, Haiwei;  Edwards, R. Lawrence;  Cheng, Hai
收藏  |  浏览/下载:8/0  |  提交时间:2020/02/17
African Humid Period  speleothem delta O-18 records  Holocene  abrupt climate change  West African summer monsoon  
Observed monsoon precipitation suppression caused by anomalous interhemispheric aerosol transport 期刊论文
CLIMATE DYNAMICS, 2019
作者:  Ajoku, Osinachi;  Norris, Joel R.;  Miller, Arthur J.
收藏  |  浏览/下载:7/0  |  提交时间:2020/02/17
Biomass-burning  West African monsoon  Aerosols  Climate forcing  
Changes in intense rainfall events and dry periods across Africa in the twenty-first century 期刊论文
CLIMATE DYNAMICS, 2019, 53: 2757-2777
作者:  Han, Fan;  Cook, Kerry H.;  Vizy, Edward K.
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
Extreme events  Drought  African climate projection  Sahel rainfall  Southern Africa climate change  East Africa climate change  Sahel climate change  
Projection of West African summer monsoon rainfall in dynamically downscaled CMIP5 models 期刊论文
CLIMATE DYNAMICS, 2019, 53: 81-95
作者:  Akinsanola, A. A.;  Zhou, Wen
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/27
Monsoon  Global warming  Climate change  Dynamical downscaling  African easterly jet  Tropical easterly jet  
Predicting the seasonal evolution of southern African summer precipitation in the DePreSys3 prediction system 期刊论文
CLIMATE DYNAMICS, 2019, 52 (11) : 6491-6510
作者:  Monerie, Paul-Arthur;  Robson, Jon;  Dong, Buwen;  Dieppois, Bastien;  Pohl, Benjamin;  Dunstone, Nick
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/26
Southern African precipitation  ENSO  Seasonal prediction  High resolution climate models  
Respective impacts of Arctic sea ice decline and increasing greenhouse gases concentration on Sahel precipitation 期刊论文
CLIMATE DYNAMICS, 2019, 52: 5947-5964
作者:  Monerie, Paul-Arthur;  Oudar, Thomas;  Sanchez-Gomez, Emilia
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/26
CMIP climate models  West African Monsoon  Sahel precipitation  Arctic-tropic teleconnection  Arctic sea ice decline  Climate Change  
Future characteristics of African Easterly Wave tracks 期刊论文
CLIMATE DYNAMICS, 2019, 52: 5567-5584
作者:  Brannan, Allison Lynn;  Martin, Elinor R.
收藏  |  浏览/下载:2/0  |  提交时间:2019/11/26
African Easterly Waves  Tracks  CMIP5  Future climate  
Modern drought conditions in western Sahel unprecedented in the past 1600years 期刊论文
CLIMATE DYNAMICS, 2019, 52: 1949-1964
作者:  Carre, Matthieu;  Azzoug, Moufok;  Zaharias, Paul;  Camara, Abdoulaye;  Cheddadi, Rachid;  Chevalier, Manuel;  Fiorillo, Denis;  Gaye, Amadou T.;  Janicot, Serge;  Khodri, Myriam;  Lazar, Alban;  Lazareth, Claire E.;  Mignot, Juliette;  Garcia, Nancy Mitma;  Patris, Nicolas;  Perrot, Oceane;  Wade, Malick
收藏  |  浏览/下载:5/0  |  提交时间:2019/04/09
West African Monsoon  Climate change  Paleoclimate  Shell middens