GSTDTAP

浏览/检索结果: 共22条,第1-10条 帮助

已选(0)清除 条数/页:   排序方式:
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:72/0  |  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.


  
Deterministic Skill of Subseasonal Precipitation Forecasts for the East Africa-West Asia Sector from September to May 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (22) : 11887-11896
作者:  Vigaud, N.;  Tippett, M. K.;  Robertson, A. W.
收藏  |  浏览/下载:25/0  |  提交时间:2020/02/17
S2S rainfall forecasts show statistically significant skill in the East Africa-West Asia sector out to Week 4  Forecast skill of dynamical models exceeds that of statistical models based on ENSO and the MJO  Tropical-temperate interactions may represent a new source of S2S predictability  
Congo Basin drying associated with poleward shifts of the African thermal lows 期刊论文
CLIMATE DYNAMICS, 2019
作者:  Cook, Kerry H.;  Liu, Yang;  Vizy, Edward K.
收藏  |  浏览/下载:13/0  |  提交时间:2020/02/17
Central Equatorial Africa  Congo Basin rainforest  Tropical forest change  African precipitation trends  Angola low  Tropical expansion  
Tropical Lows in Southern Africa: Tracks, Rainfall Contributions, and the Role of ENSO 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019
作者:  Howard, Emma;  Washington, Richard;  Hodges, Kevin I.
收藏  |  浏览/下载:18/0  |  提交时间:2019/11/27
tropical lows  southern Africa  ENSO  reanalysis  objective feature tracking  
The Influence of Tropical Cyclones on Circulation, Moisture Transport, and Snow Accumulation at Kilimanjaro During the 2006-2007 Season 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (13) : 6919-6928
作者:  Collier, E.;  Sauter, T.;  Moelg, T.;  Hardy, D.
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/27
tropical cyclones  glaciers  high-mountain regions  precipitation  moisture transport  East Africa  
Distribution of tree species with high economic and livelihood value for Zambia 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 441: 280-292
作者:  Pelletier, Johanne;  Chidumayo, Emmanuel;  Trainor, Anne;  Siampale, Abel;  Mbindo, Keddy
收藏  |  浏览/下载:18/0  |  提交时间:2019/11/26
Africa  Charcoal production  Dry tropical forests  Miombo woodands  Mopane woodlands  Species distribution modelling  Timber  Zambia  
Expanding networks of field hedges in densely populated landscapes in the Sahel 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 440: 178-188
作者:  Hiernaux, Pierre;  Adamou, Kalilou;  Moumouni, Oumarou;  Turner, Matthew D.;  Tong, Xiaoye;  Savadogo, Patrice;  Mougin, Eric;  Malam Issa, Oumarou
收藏  |  浏览/下载:16/0  |  提交时间:2019/11/26
Agroforestry  Hedgerow  Land tenure  Deforestation  Bocage  Tropical Africa  
Drier tropical forests are susceptible to functional changes in response to a long-term drought 期刊论文
ECOLOGY LETTERS, 2019, 22 (5) : 855-865
作者:  Aguirre-Gutierrez, Jesus;  Oliveras, Imma;  Rifai, Sami;  Fauset, Sophie;  Adu-Bredu, Stephen;  Affum-Baffoe, Kofi;  Baker, Timothy R.;  Feldpausch, Ted R.;  Gvozdevaite, Agne;  Hubau, Wannes;  Kraft, Nathan J. B.;  Lewis, Simon L.;  Moore, Sam;  Niinemets, Ulo;  Peprah, Theresa;  Phillips, Oliver L.;  Zieminska, Kasia;  Enquist, Brian;  Malhi, Yadvinder
收藏  |  浏览/下载:30/0  |  提交时间:2019/11/26
Drying climate  ecosystem functioning  plant traits  tropical forests  West Africa  
Climate change would lead to a sharp acceleration of Central African forests dynamics by the end of the century 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (4)
作者:  Claeys, Florian;  Gourlet-Fleury, Sylvie;  Picard, Nicolas;  Ouedraogo, Dakis-Yaoba;  Tadesse, Mahlet G.;  Herault, Bruno;  Baya, Fidele;  Benedet, Fabrice;  Cornu, Guillaume;  Mortier, Frederic
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/26
tropical rainforest  climate change  CORDEX-Africa  M'  Baiki experimental site  ecological guilds  mixture of matrix models  variable selection  
Understanding the summertime diurnal cycle of precipitation over sub-Saharan West Africa: regions with daytime rainfall peaks in the absence of significant topographic features 期刊论文
CLIMATE DYNAMICS, 2019, 52: 2903-2922
作者:  Vizy, Edward K.;  Cook, Kerry H.
收藏  |  浏览/下载:20/0  |  提交时间:2019/11/26
Diurnal cycle of precipitation  West Africa  Sahel  Mesoscale convective system  Cold pool outflow  MCS genesis  African easterly wave disturbance  African easterly jet  Inter-tropical front  Convection permitting modeling