Degradation in carbon stocks near tropical forest edges.
Rebecca Chaplin-Kramer,Ivan Ramler,Richard Sharp,Nick M. Haddad,James S. Gerber,Paul C. West,Lisa Mandle,Peder Engstrom,Alessandro Baccini,Sarah Sim,Carina Mueller,Henry King +11 more
TLDR
These findings suggest that IPCC Tier 1 methods overestimate carbon stocks in tropical forests by nearly 10%.Abstract:
Carbon stock estimates based on land cover type are critical for informing climate change assessment and landscape management, but field and theoretical evidence indicates that forest fragmentation reduces the amount of carbon stored at forest edges. Here, using remotely sensed pantropical biomass and land cover data sets, we estimate that biomass within the first 500 m of the forest edge is on average 25% lower than in forest interiors and that reductions of 10% extend to 1.5 km from the forest edge. These findings suggest that IPCC Tier 1 methods overestimate carbon stocks in tropical forests by nearly 10%. Proper accounting for degradation at forest edges will inform better landscape and forest management and policies, as well as the assessment of carbon stocks at landscape and national levels.read more
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The exceptional value of intact forest ecosystems
James E. M. Watson,James E. M. Watson,Tom Evans,Oscar Venter,Brooke Williams,Brooke Williams,Ayesha I. T. Tulloch,Ayesha I. T. Tulloch,Claire Louise Stewart,Ian D. Thompson,Justina C. Ray,Kris A. Murray,Alvaro Salazar,Clive McAlpine,Peter Potapov,Joe Walston,John G. Robinson,Michael Painter,David Wilkie,Christopher E. Filardi,William F. Laurance,Richard A. Houghton,Sean L. Maxwell,Hedley S. Grantham,Hedley S. Grantham,Cristián Samper,Stephanie Wang,Lars Laestadius,Rebecca K. Runting,Gustavo A. Silva-Chávez,Jamison Ervin,David B. Lindenmayer +31 more
TL;DR: It is argued that maintaining and, where possible, restoring the integrity of dwindling intact forests is an urgent priority for current global efforts to halt the ongoing biodiversity crisis, slow rapid climate change and achieve sustainability goals.
Journal ArticleDOI
Tropical forests are a net carbon source based on aboveground measurements of gain and loss
Alessandro Baccini,Wayne S. Walker,Luis Carvalho,Mary Farina,Damien Sulla-Menashe,Richard A. Houghton +5 more
TL;DR: 12 years of MODIS satellite data are used 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.
Journal ArticleDOI
Carbon sequestration potential of second-growth forest regeneration in the Latin American tropics
Robin L. Chazdon,Robin L. Chazdon,Eben N. Broadbent,Danaë M. A. Rozendaal,Danaë M. A. Rozendaal,Danaë M. A. Rozendaal,Frans Bongers,Angelica M. Almeyda Zambrano,T. Mitchell Aide,Patricia Balvanera,Justin M. Becknell,Vanessa K. Boukili,Pedro H. S. Brancalion,Dylan Craven,Dylan Craven,Jarcilene S. Almeida-Cortez,George A. L. Cabral,Ben de Jong,Julie S. Denslow,Daisy H. Dent,Daisy H. Dent,Saara J. DeWalt,Juan Manuel Dupuy,Sandra M. Durán,Mário M. Espírito-Santo,María C. Fandiño,Ricardo Gomes César,Jefferson S. Hall,José Luis Hernández-Stefanoni,Catarina C. Jakovac,Catarina C. Jakovac,André Braga Junqueira,André Braga Junqueira,Deborah K. Kennard,Susan G. Letcher,Madelon Lohbeck,Madelon Lohbeck,Miguel Martínez-Ramos,Paulo Eduardo dos Santos Massoca,Jorge A. Meave,Rita C. G. Mesquita,Francisco Mora,Rodrigo Muñoz,Robert Muscarella,Robert Muscarella,Yule Roberta Ferreira Nunes,Susana Ochoa-Gaona,Edith Orihuela-Belmonte,Marielos Peña-Claros,Eduardo A. Pérez-García,Daniel Piotto,Jennifer S. Powers,Jorge Rodríguez-Velázquez,Isabel Eunice Romero-Pérez,Jorge Ruiz,Jorge Ruiz,Juan Saldarriaga,Arturo Sanchez-Azofeifa,Naomi B. Schwartz,Marc K. Steininger,Nathan G. Swenson,María Uriarte,Michiel van Breugel,Michiel van Breugel,Michiel van Breugel,Hans van der Wal,Hans van der Wal,Maria das Dores Magalhães Veloso,Hans F. M. Vester,Ima Célia Guimarães Vieira,Tony Vizcarra Bentos,G. Bruce Williamson,G. Bruce Williamson,Lourens Poorter +73 more
TL;DR: This study estimates the age and spatial extent of lowland second-growth forests in the Latin American tropics and model their potential aboveground carbon accumulation over four decades to guide national-level forest-based carbon mitigation plans.
Journal ArticleDOI
The tropical forest carbon cycle and climate change
TL;DR: Tropical forests currently make a neutral contribution to the global carbon cycle, but they are likely to become a carbon source in the near future.
Journal ArticleDOI
Global patterns of tropical forest fragmentation
Franziska Taubert,Rico Fischer,Jürgen Groeneveld,Jürgen Groeneveld,Sebastian Lehmann,Michael S. Müller,Edna Rödig,Thorsten Wiegand,Andreas Huth,Andreas Huth +9 more
TL;DR: Almost 130 million forest fragments in three continents are identified that show surprisingly similar power-law size and perimeter distributions as well as fractal dimensions, suggesting that forest fragmentation is close to the critical point of percolation.
References
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TL;DR: The datasets and algorithms used to create the Collection 5 MODIS Global Land Cover Type product, which is substantially changed relative to Collection 4, are described, with a four-fold increase in spatial resolution and changes in the input data and classification algorithm.
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