The regional variation of aboveground live biomass in old-growth Amazonian forests
The biomass of tropical forests plays an important role in the global carbon cycle, both as a dynamic reservoir of carbon, and as a source of carbon dioxide to the atmosphere in areas undergoing deforestation. However, the absolute magnitude and environmental determinants of tropical forest biomass...
| Autor principal: | Malhi, Yadvinder Singh |
|---|---|
| Outros Autores: | Wood, Daniel, Baker, Timothy R., Wright, Jim A., Phillips, Oliver L., Cochrane, Thomas A., Meir, Patrick W., Chave, Jérôme, Almeida, Samuel Miranda, Arroyo, Luzmila P., Higuchi, Niro, Killeen, Timothy J., Laurance, Susan G.W., Laurance, William F., Lewis, Simon L., Monteagudo, Abel Lorenzo, Neill, David A., Vargas, Percy Núñez, Pitman, Nigel C.A., Quesada, Carlos Alberto, Salomão, Rafael Paiva, Silva, Jose Natalino Macedo, Lezama, Armando Torres, Terborgh, John W., Martínez, Rodolfo Vásquez, Vinceti, Barbara |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Global Change Biology
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18742 |
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oai:repositorio:1-18742 |
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oai:repositorio:1-18742 The regional variation of aboveground live biomass in old-growth Amazonian forests Malhi, Yadvinder Singh Wood, Daniel Baker, Timothy R. Wright, Jim A. Phillips, Oliver L. Cochrane, Thomas A. Meir, Patrick W. Chave, Jérôme Almeida, Samuel Miranda Arroyo, Luzmila P. Higuchi, Niro Killeen, Timothy J. Laurance, Susan G.W. Laurance, William F. Lewis, Simon L. Monteagudo, Abel Lorenzo Neill, David A. Vargas, Percy Núñez Pitman, Nigel C.A. Quesada, Carlos Alberto Salomão, Rafael Paiva Silva, Jose Natalino Macedo Lezama, Armando Torres Terborgh, John W. Martínez, Rodolfo Vásquez Vinceti, Barbara Aboveground Biomass Carbon Cycle Rainforest Soil Fertility Tropical Forest Amazonia South America The biomass of tropical forests plays an important role in the global carbon cycle, both as a dynamic reservoir of carbon, and as a source of carbon dioxide to the atmosphere in areas undergoing deforestation. However, the absolute magnitude and environmental determinants of tropical forest biomass are still poorly understood. Here, we present a new synthesis and interpolation of the basal area and aboveground live biomass of old-growth lowland tropical forests across South America, based on data from 227 forest plots, many previously unpublished. Forest biomass was analyzed in terms of two uncorrelated factors: basal area and mean wood density. Basal area is strongly affected by local landscape factors, but is relatively invariant at regional scale in moist tropical forests, and declines significantly at the dry periphery of the forest zone. Mean wood density is inversely correlated with forest dynamics, being lower in the dynamic forests of western Amazonia and high in the slow-growing forests of eastern Amazonia. The combination of these two factors results in biomass being highest in the moderately seasonal, slow growing forests of central Amazonia and the Guyanas (up to 350 Mg dry weight ha-1) and declining to 200-250 Mg dry weight ha-1 at the western, southern and eastern margins. Overall, we estimate the total aboveground live biomass of intact Amazonian rainforests (area 5.76 × 106 km2 in 2000) to be 93±23 Pg C, taking into account lianas and small trees. Including dead biomass and belowground biomass would increase this value by approximately 10% and 21%, respectively, but the spatial variation of these additional terms still needs to be quantified. © 2006 Blackwell Publishing Ltd. 2020-06-15T22:02:50Z 2020-06-15T22:02:50Z 2006 Artigo https://repositorio.inpa.gov.br/handle/1/18742 10.1111/j.1365-2486.2006.01120.x en Volume 12, Número 7, Pags. 1107-1138 Restrito Global Change Biology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Aboveground Biomass Carbon Cycle Rainforest Soil Fertility Tropical Forest Amazonia South America |
| spellingShingle |
Aboveground Biomass Carbon Cycle Rainforest Soil Fertility Tropical Forest Amazonia South America Malhi, Yadvinder Singh The regional variation of aboveground live biomass in old-growth Amazonian forests |
| topic_facet |
Aboveground Biomass Carbon Cycle Rainforest Soil Fertility Tropical Forest Amazonia South America |
| description |
The biomass of tropical forests plays an important role in the global carbon cycle, both as a dynamic reservoir of carbon, and as a source of carbon dioxide to the atmosphere in areas undergoing deforestation. However, the absolute magnitude and environmental determinants of tropical forest biomass are still poorly understood. Here, we present a new synthesis and interpolation of the basal area and aboveground live biomass of old-growth lowland tropical forests across South America, based on data from 227 forest plots, many previously unpublished. Forest biomass was analyzed in terms of two uncorrelated factors: basal area and mean wood density. Basal area is strongly affected by local landscape factors, but is relatively invariant at regional scale in moist tropical forests, and declines significantly at the dry periphery of the forest zone. Mean wood density is inversely correlated with forest dynamics, being lower in the dynamic forests of western Amazonia and high in the slow-growing forests of eastern Amazonia. The combination of these two factors results in biomass being highest in the moderately seasonal, slow growing forests of central Amazonia and the Guyanas (up to 350 Mg dry weight ha-1) and declining to 200-250 Mg dry weight ha-1 at the western, southern and eastern margins. Overall, we estimate the total aboveground live biomass of intact Amazonian rainforests (area 5.76 × 106 km2 in 2000) to be 93±23 Pg C, taking into account lianas and small trees. Including dead biomass and belowground biomass would increase this value by approximately 10% and 21%, respectively, but the spatial variation of these additional terms still needs to be quantified. © 2006 Blackwell Publishing Ltd. |
| format |
Artigo |
| author |
Malhi, Yadvinder Singh |
| author2 |
Wood, Daniel Baker, Timothy R. Wright, Jim A. Phillips, Oliver L. Cochrane, Thomas A. Meir, Patrick W. Chave, Jérôme Almeida, Samuel Miranda Arroyo, Luzmila P. Higuchi, Niro Killeen, Timothy J. Laurance, Susan G.W. Laurance, William F. Lewis, Simon L. Monteagudo, Abel Lorenzo Neill, David A. Vargas, Percy Núñez Pitman, Nigel C.A. Quesada, Carlos Alberto Salomão, Rafael Paiva Silva, Jose Natalino Macedo Lezama, Armando Torres Terborgh, John W. Martínez, Rodolfo Vásquez Vinceti, Barbara |
| author2Str |
Wood, Daniel Baker, Timothy R. Wright, Jim A. Phillips, Oliver L. Cochrane, Thomas A. Meir, Patrick W. Chave, Jérôme Almeida, Samuel Miranda Arroyo, Luzmila P. Higuchi, Niro Killeen, Timothy J. Laurance, Susan G.W. Laurance, William F. Lewis, Simon L. Monteagudo, Abel Lorenzo Neill, David A. Vargas, Percy Núñez Pitman, Nigel C.A. Quesada, Carlos Alberto Salomão, Rafael Paiva Silva, Jose Natalino Macedo Lezama, Armando Torres Terborgh, John W. Martínez, Rodolfo Vásquez Vinceti, Barbara |
| title |
The regional variation of aboveground live biomass in old-growth Amazonian forests |
| title_short |
The regional variation of aboveground live biomass in old-growth Amazonian forests |
| title_full |
The regional variation of aboveground live biomass in old-growth Amazonian forests |
| title_fullStr |
The regional variation of aboveground live biomass in old-growth Amazonian forests |
| title_full_unstemmed |
The regional variation of aboveground live biomass in old-growth Amazonian forests |
| title_sort |
regional variation of aboveground live biomass in old-growth amazonian forests |
| publisher |
Global Change Biology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18742 |
| _version_ |
1787143370106208256 |
| score |
11.653393 |