Tropical forests are a net carbon source based on aboveground measurements of gain and loss

被引：557

作者：

Baccini, A. ^{[1
]}

Walker, W. ^{[1
]}

Carvalho, L. ^{[2
]}

Farina, M. ^{[1
]}

Sulla-Menashe, D. ^{[3
]}

Houghton, R. A. ^{[1
]}

机构：

[1] Woods Hole Res Ctr, 149 Woods Hole Rd, Falmouth, MA 04523 USA

[2] Boston Univ, Dept Math & Stat, Boston, MA 02215 USA

[3] Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA

来源：

SCIENCE | 2017年 / 358卷 / 6360期

关键词：

BIOMASS CHANGE; EMISSIONS; DEFORESTATION; MAP; NORTHERN; DENSITY; STOCKS; RATES; LIDAR; CO2;

D O I：

10.1126/science.aam5962

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The carbon balance of tropical ecosystems remains uncertain, with top-down atmospheric studies suggesting an overall sink and bottom-up ecological approaches indicating a modest net source. Here we use 12 years (2003 to 2014) of MODIS pantropical satellite data to quantify net annual changes in the aboveground carbon density of tropical woody live vegetation, providing direct, measurement-based evidence that the world's tropical forests are a net carbon source of 425.2 +/- 92.0 teragrams of carbon per year (Tg C year(-1)). This net release of carbon consists of losses of 861.7 +/- 80.2 Tg C year(-1) and gains of 436.5 +/- 31.0 Tg C year(-1). Gains result from forest growth; losses result from deforestation and from reductions in carbon density within standing forests (degradation or disturbance), with the latter accounting for 68.9% of overall losses.

引用

页码：230 / 233

页数：4

共 43 条

[1] Determination of tropical deforestation rates and related carbon losses from 1990 to 2010 [J].

Achard, Frederic ;

Beuchle, Rene ;

Mayaux, Philippe ;

Stibig, Hans-Juergen ;

Bodart, Catherine ;

Brink, Andreas ;

Carboni, Silvia ;

Desclee, Baudouin ;

Donnay, Francois ;

Eva, Hugh D. ;

Lupi, Andrea ;

Rasi, Rastislav ;

Seliger, Roman ;

Simonetti, Dario .

GLOBAL CHANGE BIOLOGY, 2014, 20 (08) :2540-2554

[2] Elevated rates of gold mining in the Amazon revealed through high-resolution monitoring [J].

Asner, Gregory P. ;

Llactayo, William ;

Tupayachi, Raul ;

Raez Luna, Ernesto .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2013, 110 (46) :18454-18459

[3] High-resolution forest carbon stocks and emissions in the Amazon [J].

Asner, Gregory P. ;

Powell, George V. N. ;

Mascaro, Joseph ;

Knapp, David E. ;

Clark, John K. ;

Jacobson, James ;

Kennedy-Bowdoin, Ty ;

Balaji, Aravindh ;

Paez-Acosta, Guayana ;

Victoria, Eloy ;

Secada, Laura ;

Valqui, Michael ;

Hughes, R. Flint .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2010, 107 (38) :16738-16742

[4] Estimated carbon dioxide emissions from tropical deforestation improved by carbon-density maps [J].

Baccini, A. ;

Goetz, S. J. ;

Walker, W. S. ;

Laporte, N. T. ;

Sun, M. ;

Sulla-Menashe, D. ;

Hackler, J. ;

Beck, P. S. A. ;

Dubayah, R. ;

Friedl, M. A. ;

Samanta, S. ;

Houghton, R. A. .

NATURE CLIMATE CHANGE, 2012, 2 (03) :182-185

[5] Increasing biomass in Amazonian forest plots [J].

Baker, TR ;

Phillips, OL ;

Malhi, Y ;

Almeida, S ;

Arroyo, L ;

Di Fiore, A ;

Erwin, T ;

Higuchi, N ;

Killeen, TJ ;

Laurance, SG ;

Laurance, WF ;

Lewis, SL ;

Monteagudo, A ;

Neill, DA ;

Vargas, PN ;

Pitman, NCA ;

Silva, JNM ;

Martínez, RV .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, 2004, 359 (1443) :353-365

[6] A large-scale field assessment of carbon stocks in human-modified tropical forests [J].

Berenguer, Erika ;

Ferreira, Joice ;

Gardner, Toby Alan ;

Oliveira Cruz Aragao, Luiz Eduardo ;

De Camargo, Plinio Barbosa ;

Cerri, Carlos Eduardo ;

Durigan, Mariana ;

De Oliveira Junior, Raimundo Cosme ;

Guimaraes Vieira, Ima Celia ;

Barlow, Jos .

GLOBAL CHANGE BIOLOGY, 2014, 20 (12) :3713-3726

[7] Abrupt increases in Amazonian tree mortality due to drought-fire interactions [J].

Brando, Paulo Monteiro ;

Balch, Jennifer K. ;

Nepstad, Daniel C. ;

Morton, Douglas C. ;

Putz, Francis E. ;

Coe, Michael T. ;

Silverio, Divino ;

Macedo, Marcia N. ;

Davidson, Eric A. ;

Nobrega, Caroline C. ;

Alencar, Ane ;

Soares-Filho, Britaldo S. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2014, 111 (17) :6347-6352

[8] Random forests [J].

Breiman, L .

MACHINE LEARNING, 2001, 45 (01) :5-32

[9] Long-term decline of the Amazon carbon sink [J].

Brienen, R. J. W. ;

Phillips, O. L. ;

Feldpausch, T. R. ;

Gloor, E. ;

Baker, T. R. ;

Lloyd, J. ;

Lopez-Gonzalez, G. ;

Monteagudo-Mendoza, A. ;

Malhi, Y. ;

Lewis, S. L. ;

Vasquez Martinez, R. ;

Alexiades, M. ;

Alvarez Davila, E. ;

Alvarez-Loayza, P. ;

Andrade, A. ;

Aragao, L. E. O. C. ;

Araujo-Murakami, A. ;

Arets, E. J. M. M. ;

Arroyo, L. ;

Aymard C, G. A. ;

Banki, O. S. ;

Baraloto, C. ;

Barroso, J. ;

Bonal, D. ;

Boot, R. G. A. ;

Camargo, J. L. C. ;

Castilho, C. V. ;

Chama, V. ;

Chao, K. J. ;

Chave, J. ;

Comiskey, J. A. ;

Cornejo Valverde, F. ;

da Costa, L. ;

de Oliveira, E. A. ;

Di Fiore, A. ;

Erwin, T. L. ;

Fauset, S. ;

Forsthofer, M. ;

Galbraith, D. R. ;

Grahame, E. S. ;

Groot, N. ;

Herault, B. ;

Higuchi, N. ;

Coronado, E. N. Honorio ;

Keeling, H. ;

Killeen, T. J. ;

Laurance, W. F. ;

Laurance, S. ;

Licona, J. ;

Magnussen, W. E. .

NATURE, 2015, 519 (7543) :344-+

[10] Degradation in carbon stocks near tropical forest edges [J].

Chaplin-Kramer, Rebecca ;

Ramler, Ivan ;

Sharp, Richard ;

Haddad, Nick M. ;

Gerber, James S. ;

West, Paul C. ;

Mandle, Lisa ;

Engstrom, Peder ;

Baccini, Alessandro ;

Sim, Sarah ;

Mueller, Carina ;

King, Henry .

NATURE COMMUNICATIONS, 2015, 6

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