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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:23/0  |  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.


  
Association of anthropogenic aerosols with subtropical drought in East Asia 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019
作者:  Liu, Yuzhi;  Shao, Tianbin;  Hua, Shan;  Zhu, Qingzhe;  Luo, Run
收藏  |  浏览/下载:7/0  |  提交时间:2020/02/17
anthropogenic aerosols  geopotential height  precipitation  subtropical drought  sulphate  
Climate-informed environmental inflows to revive a drying lake facing meteorological and anthropogenic droughts 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2018, 13 (8)
作者:  Alborzi, Aneseh;  Mirchi, Ali;  Moftakhari, Hamed;  Mallakpour, Iman;  Alian, Sara;  Nazemi, Ali;  Hassanzadeh, Elmira;  Mazdiyasni, Omid;  Ashraf, Samaneh;  Madani, Kaveh;  Norouzi, Hamid;  Azarderakhsh, Marzi;  Mehran, Ali;  Sadegh, Mojtaba;  Castelletti, Andrea;  AghaKouchak, Amir
收藏  |  浏览/下载:9/0  |  提交时间:2019/04/09
Lake Urmia  anthropogenic drought  climate variability and change  sustainable water resources management  restoration  environmental inflow requirement  
Sociohydrological Impacts of Water Conservation Under Anthropogenic Drought in Austin, TX (USA) 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (4) : 3062-3080
作者:  Breyer, Betsy;  Zipper, Samuel C.;  Qiu, Jiangxiao
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/09
sociohydrology  anthropogenic drought  urban climate change adaptation  water conservation  cross-scale interactions  
Characterizing present and future drought changes over eastern China 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2017, 37
作者:  Chen, Huopo;  Sun, Jianqi
收藏  |  浏览/下载:1/0  |  提交时间:2019/04/09
drought  standardized precipitation evapotranspiration index  evapotranspiration  anthropogenic activity  projection  
Aerosol forcing of extreme summer drought over North China 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2017, 12 (3)
作者:  Zhang, Lixia;  Wu, Peili;  Zhou, Tianjun
收藏  |  浏览/下载:2/0  |  提交时间:2019/04/09
drought  anthropogenic forcing  attribution  climate change