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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:27/0  |  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.


  
Root biomass allocation in southern temperate forests 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 453
作者:  Easdale, Tomas A.;  Richardson, Sarah J.;  Marden, Michael;  England, Jacqueline R.;  Gayoso-Aguilar, Jorge;  Guerra-Carcamo, Javier E.;  McCarthy, James K.;  Paul, Keryn I.;  Schwendenmann, Luitgard;  Brandon, Andrea M.
收藏  |  浏览/下载:15/0  |  提交时间:2020/02/17
Root:shoot ratio  Below-ground biomass  Tree size  Nothofagaceae  Eucalyptus  Tree fern  
White birch has limited phenotypic plasticity to take advantage of increased photoperiods at higher latitudes north of the seed origin 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 451
作者:  Tedla, Binyam;  Dang, Qing-Lai;  Inone, Sahari
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/27
Tree migration  Photoperiod  Betula papyrifera Marsh  Growth  Biomass  Biomass allocation  
Introducing nitrogen-fixing tree species and mixing with Pinus massoniana alters and evenly distributes various chemical compositions of soil organic carbon in a planted forest in southern China 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 449
作者:  Wang, Hui;  Liu, Shirong;  Song, Zhanchao;  Yang, Yujing;  Wang, Jingxin;  You, Yeming;  Zhang, Xiao;  Shi, Zuomin;  Nong, You;  Ming, Angang;  Lu, Lihua;  Cai, Daoxiong
收藏  |  浏览/下载:17/0  |  提交时间:2019/11/27
Litter quality  Organic carbon chemical composition  Planted forests  Soil microbial biomass and diversity  Tree species  
Are mixed-tree plantations including a nitrogen-fixing species more productive than monocultures? 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 441: 242-252
作者:  Marron, Nicolas;  Epron, Daniel
收藏  |  浏览/下载:14/0  |  提交时间:2019/11/26
Mixed-tree plantations  N-2-fixation  Meta-analysis  Biomass production  Monocultures  Climate conditions  Mixing proportion  Developmental stage  
Species-rich boreal forests grew more and suffered less mortality than species-poor forests under the environmental change of the past half-century 期刊论文
ECOLOGY LETTERS, 2019, 22 (6) : 999-1008
作者:  Hisano, Masumi;  Chen, Han Y. H.;  Searle, Eric B.;  Reich, Peter B.
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/26
Biodiversity-ecosystem functioning (B-EF)  climate change impacts  drought  growth  mitigation  mortality  net aboveground biomass change  productivity  tree species diversity  warming  
Effects of land use change and Quercus rubra introduction on Vaccinium myrtillus performance in Pinus sylvestris forests 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 440: 1-11
作者:  Woziwoda, Beata;  Dyderski, Marcin K.;  Jagodzinski, Andrzej M.
收藏  |  浏览/下载:14/0  |  提交时间:2019/11/26
Ancient and recent forest  Tree stand conversion  Biomass allocation  Non-wood forest product  Ecosystem services  
Evaluating the success of direct seeding for tropical forest restoration over ten years 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 438: 224-232
作者:  Freitas, Marina Guimaraes;  Rodrigues, Silvia Barbosa;  Campos-Filho, Eduardo Malta;  Pompiano do Carmo, Guilherme Henrique;  da Veiga, Junior Micolino;  Prates Junqueira, Rodrigo Gravina;  Mascia Vieira, Daniel Luis
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/26
Succession  Ecological restoration  Chronosequence  Tree density  Seedlings  Biomass  
Competition increased fine root biomass in Chinese fir (Cunninghamia lanceolata) plantations in Subtropical China 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 435: 151-157
作者:  Liao, Yingchun;  Fan, Houbao;  Wei, Xiaohua;  Wu, Jianping;  Duan, Honglang;  Fu, Xiaoli;  Liu, Wenfei;  Wang, Huimin;  Zhan, Xinwu;  Tang, Pu;  Li, Feng
收藏  |  浏览/下载:9/0  |  提交时间:2019/04/09
Fine tree root biomass  Absorptive roots  Fine transport roots  Fine understory vegetation roots  Forest biomass  Competition  
Allometric equations for Sequoia sempervirens in forests of different ages 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 433: 349-363
作者:  Sillett, Stephen C.;  Van Pelt, Robert;  Carroll, Allyson L.;  Campbell-Spickler, Jim;  Coonen, Ethan J.;  Iberle, Benjamin
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/09
Tree size  Tree age  Aboveground biomass  Fritz Wonder Plot  Forest canopy structure