GSTDTAP

浏览/检索结果: 共35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: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.


  
Monitoring pinyon-juniper cover and aboveground biomass across the Great Basin 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (2)
作者:  Filippelli, Steven K.;  Falkowski, Michael J.;  Hudak, Andrew T.;  Fekety, Patrick A.;  Vogeler, Jody C.;  Khalyani, Azad Henareh;  Rau, Benjamin M.;  Strand, Eva K.
收藏  |  浏览/下载:6/0  |  提交时间:2020/07/02
pinyon-juniper  woodland  aboveground biomass  canopy cover  encroachment  Great Basin  monitoring reporting and verification (MRV)  
Forest structure and biomass reflects the variable effects of fire and land use 15 and 29 years following fire in the western Cascades, Oregon 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 453
作者:  Kauffman, J. Boone;  Ellsworth, Lisa M.;  Bell, David M.;  Acker, Steve;  Kertis, Jane
收藏  |  浏览/下载:8/0  |  提交时间:2020/02/17
Fire ecology  Fire effects  Forest carbon stocks  Forest succession  Mixed-severity fire regimes  Total aboveground biomass  
High-resolution mapping of aboveground biomass for forest carbon monitoring system in the Tri-State region of Maryland, Pennsylvania and Delaware, USA 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (9)
作者:  Huang, Wenli;  39;Neil-Dunne, Jarlath
收藏  |  浏览/下载:8/0  |  提交时间:2019/11/27
forest aboveground biomass  carbon monitoring system  lidar  forest inventory analysis  Maryland  Delaware  Pennsylvania  
Assessment of multi-wavelength SAR and multispectral instrument data for forest aboveground biomass mapping using random forest kriging 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 447: 12-25
作者:  Chen, Lin;  Wang, Yeqiao;  Ren, Chunying;  Zhang, Bai;  Wang, Zongming
收藏  |  浏览/下载:5/0  |  提交时间:2019/11/27
ALOS-2 L band SAR  Sentinel-2 MSI  Sentinel-1C band SAR  SRTM DEM  Random forest kriging  Forest aboveground biomass  
Global patterns of tree stem growth and stand aboveground wood production in mangrove forests 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 444: 382-392
作者:  Xiong, Yanmei;  Cakir, Roxelane;  Phan, Sang Minh;  Ola, Anne;  Krauss, Ken W.;  Lovelock, Catherine E.
收藏  |  浏览/下载:11/0  |  提交时间:2019/11/27
Diameter increment  Carbon sequestration  Blue carbon  Aboveground biomass  Productivity  Dendrometer  Plantation  Restoration  
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  
Nitrogen addition does not reduce the role of spatial asynchrony in stabilising grassland communities 期刊论文
ECOLOGY LETTERS, 2019, 22 (4) : 563-571
作者:  Zhang, Yunhai;  Feng, Jinchao;  Loreau, Michel;  He, Nianpeng;  Han, Xingguo;  Jiang, Lin
收藏  |  浏览/下载:5/0  |  提交时间:2019/04/09
Aboveground biomass  asynchrony  biodiversity  metacommunity  nitrogen deposition  spatial heterogeneity  spatial insurance  spatial scale  species richness  steppe  
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  
Plot-level variability in biomass for tropical forest inventory designs 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2018, 430: 10-20
作者:  Picard, Nicolas;  Gamarra, Javier G. P.;  Birigazzi, Luca;  Branthomme, Anne
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/09
Aboveground biomass  Cluster sampling  Forest inventory  Point process  Sampling design  Tropical rain forest