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Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming 期刊论文
NATURE GEOSCIENCE, 2020
作者:  Keuper, Frida;  Wild, Birgit;  Kummu, Matti;  Beer, Christian;  Blume-Werry, Gesche;  Fontaine, Sebastien;  Gavazov, Konstantin;  Gentsch, Norman;  Guggenberger, Georg;  Hugelius, Gustaf;  Jalava, Mika;  Koven, Charles;  Krab, Eveline J.;  Kuhry, Peter;  Monteux, Sylvain;  Richter, Andreas;  Shahzad, Tanvir;  Weedon, James T.;  Dorrepaal, Ellen
收藏  |  浏览/下载:12/0  |  提交时间:2020/08/09
Light limitation regulates the response of autumn terrestrial carbon uptake to warming 期刊论文
NATURE CLIMATE CHANGE, 2020
作者:  Zhang, Yao;  Commane, Roisin;  Zhou, Sha;  Williams, A. Park;  Gentine, Pierre
收藏  |  浏览/下载:15/0  |  提交时间:2020/07/09
Progressive nitrogen limitation across the Tibetan alpine permafrost region 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Kou, Dan;  Yang, Guibiao;  Li, Fei;  Feng, Xuehui;  Zhang, Dianye;  Mao, Chao;  Zhang, Qiwen;  Peng, Yunfeng;  Ji, Chengjun;  Zhu, Qiuan;  Fang, Yunting;  Liu, Xueyan;  Xu-Ri;  Li, Siqi;  Deng, Jia;  Zheng, Xunhua;  Fang, Jingyun;  Yang, Yuanhe
收藏  |  浏览/下载:18/0  |  提交时间:2020/07/06
Bedrock geochemistry influences vegetation growth by regulating the regolith water holding capacity 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Jiang, Zihan;  Liu, Hongyan;  Wang, Hongya;  Peng, Jian;  Meersmans, Jeroen;  Green, Sophie M.;  Quine, Timothy A.;  Wu, Xiuchen;  Song, Zhaoliang
收藏  |  浏览/下载:14/0  |  提交时间:2020/05/20
When savannas recover from overgrazing, ecohydrological connectivity collapses 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (5)
作者:  Basant, Shishir;  Wilcox, Bradford P.;  Leite, Pedro M.;  Morgan, Cristine L.
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/02
ecohydrology  drylands  savanna  connectivity  hydrology  woody plant encroachment  grazing  
Groundwater Buffers Drought Effects and Climate Variability in Urban Reserves 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (5)
作者:  Marchionni, V;  Daly, E.;  Manoli, G.;  Tapper, N. J.;  Walker, J. P.;  Fatichi, S.
收藏  |  浏览/下载:8/0  |  提交时间:2020/05/13
urban reserves  cities  groundwater-dependent ecosystems  ecohydrology  
Pronounced and unavoidable impacts of low-end global warming on northern high-latitude land ecosystems 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (4)
作者:  Ito, Akihiko;  Reyer, Christopher P. O.;  Gaedeke, Anne;  Ciais, Philippe;  Chang, Jinfeng;  Chen, Min;  Francois, Louis;  Forrest, Matthew;  Hickler, Thomas;  Ostberg, Sebastian;  Shi, Hao;  Thiery, Wim;  Tian, Hanqin
收藏  |  浏览/下载:16/0  |  提交时间:2020/07/02
biome sector  ISIMIP2b  northern high latitudes  Paris agreement  climatic impacts  
Ozone-vegetation feedback through dry deposition and isoprene emissions in a global chemistry-carbon-climate model 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (6) : 3841-3857
作者:  Gong, Cheng;  Lei, Yadong;  Ma, Yimian;  Yue, Xu;  Liao, Hong
收藏  |  浏览/下载:8/0  |  提交时间:2020/07/02
Characterization of the radiative impact of aerosols on CO2 and energy fluxes in the Amazon deforestation arch using artificial neural networks 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (6) : 3439-3458
作者:  Braghiere, Renato Kerches;  Yamasoe, Marcia Akemi;  Evora do Rosario, Nilton Manuel;  da Rocha, Humberto Ribeiro;  Nogueira, Jose de Souza;  de Araujo, Alessandro Carioca
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/02
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.