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Tree growth at the end of the 21st century-the extreme years 2018/19 as template for future growth conditions 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (7)
作者:  Scharnweber, Tobias;  Smiljanic, Marko;  Cruz-Garcia, Roberto;  Manthey, Michael;  Wilmking, Martin
收藏  |  浏览/下载:13/0  |  提交时间:2020/08/18
drought  tree-growth  forests  dendrometer  
A Conceptual Model for Anticipating the Impact of Landscape Evolution on Groundwater Recharge in Degrading Permafrost Environments 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (11)
作者:  Young, N. L.;  Lemieux, J. -M.;  Delottier, H.;  Fortier, R.;  Fortier, P.
收藏  |  浏览/下载:7/0  |  提交时间:2020/05/13
hydrogeology  chronosequence  land cover  permafrost  recharge  water table fluctuation  
Late-spring frost risk between 1959 and 2017 decreased in North America but increased in Europe and Asia 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (22) : 12192-12200
作者:  Zohner, Constantin M.;  Mo, Lidong;  Renner, Susanne S.;  Svenning, Jens-Christian;  Vitasse, Yann;  Benito, Blas M.;  Ordonez, Alejandro;  Baumgarten, Frederik;  Bastin, Jean-Francois;  Sebald, Veronica;  Reich, Peter B.;  Liang, Jingjing;  Nabuurs, Gert-Jan;  de-Miguel, Sergio;  Alberti, Giorgio;  Anton-Fernandez, Clara;  Balazy, Radomir;  Braendli, Urs-Beat;  Chen, Han Y. H.;  Chisholm, Chelsea;  Cienciala, Emil;  Dayanandan, Selvadurai;  Fayle, Tom M.;  Frizzera, Lorenzo;  Gianelle, Damiano;  Jagodzinski, Andrzej M.;  Jaroszewicz, Bogdan;  Jucker, Tommaso;  Kepfer-Rojas, Sebastian;  Khan, Mohammed Latif;  Kim, Hyun Seok;  Korjus, Henn;  Johannsen, Vivian Kvist;  Laarmann, Diana;  Lang, Mait;  Zawila-Niedzwiecki, Tomasz;  Niklaus, Pascal A.;  Paquette, Alain;  Pretzsch, Hans;  Saikia, Purabi;  Schall, Peter;  Seben, Vladimir;  Svoboda, Miroslav;  Tikhonova, Elena;  Viana, Helder;  Zhang, Chunyu;  Zhao, Xiuhai;  Crowther, Thomas W.
收藏  |  浏览/下载:19/0  |  提交时间:2020/05/13
climate change  phenology  spring leaf-out  late frost  freezing damage  
Lichen cover mapping for caribou ranges in interior Alaska and Yukon 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (5)
作者:  Macander, Matthew J.;  Palm, Eric C.;  Frost, Gerald, V;  Herriges, Jim D.;  Nelson, Peter R.;  Roland, Carl;  Russell, Kelsey L. M.;  Suitor, Mike J.;  Bentzen, Torsten W.;  Joly, Kyle;  Goetz, Scott J.;  Hebblewhite, Mark
收藏  |  浏览/下载:17/0  |  提交时间:2020/07/02
arctic boreal vulnerability experiment  caribou  climate change  fire  lichen  remote sensing  shrubs  
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  
Sensitivity of Deciduous Forest Phenology to Environmental Drivers: Implications for Climate Change Impacts Across North America 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (5)
作者:  Seyednasrollah, Bijan;  Young, Adam;  Li, Xiaolu;  Milliman, Thomas;  Ault, Toby Rollin;  Frolking, Steve;  Friedl, Mark;  Richardson, Andrew D.
收藏  |  浏览/下载:10/0  |  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.


  
Remotely sensed estimation of vegetation shifts in the polar and alpine tree line ecotone in Finnish Lapland during the last three decades 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 454
作者:  Franke, A. K.;  Feilhauer, H.;  Braeuning, A.;  Rautio, P.;  Braun, M.
收藏  |  浏览/下载:7/0  |  提交时间:2020/02/17
Treeline ecotone  Vegetation shifts  Multi-spectral satellite data  NDVI  Climate change  
Tree species at risk from nitrogen deposition in the northeastern United States: A geospatial analysis of effects of multiple stressors using exceedance of critical loads 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 454
作者:  Pardo, Linda H.;  39;Amato, Anthony W.
收藏  |  浏览/下载:3/0  |  提交时间:2020/02/17
Hiding from the climate: Characterizing microrefugia for boreal forest understory species 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  Greiser, Caroline;  Ehrlen, Johan;  Meineri, Eric;  Hylander, Kristoffer
收藏  |  浏览/下载:10/0  |  提交时间:2020/02/17
cold-adapted species  marginal populations  microclimate  range contraction  range edge  range shift  rear edge  thermal niche