Variations in Amazon forest productivity correlated with foliar nutrients and modelled rates of photosynthetic carbon supply
The rate of above-ground woody biomass production, WP, in some western Amazon forests exceeds those in the east by a factor of 2 or more. Underlying causes may include climate, soil nutrient limitations and species composition. In this modelling paper, we explore the implications of allowing key nut...
| Autor principal: | Mercado, Lina |
|---|---|
| Outros Autores: | Patiño, Sandra, null, Tomas, Fyllas, Nikolaos M., Weedon, Graham P., Sitch, Stephen A., Quesada, Carlos Alberto, Phillips, Oliver L., Aragao, L. E.O.C., Malhi, Yadvinder Singh, Dolman, A. Johannes, Restrepo-Coupé, Natalia, Saleska, Scott Reid, Baker, Timothy R., Almeida, Samuel Miranda, Higuchi, Niro, Lloyd, Jon |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Philosophical Transactions of the Royal Society B: Biological Sciences
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/16227 |
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oai:repositorio:1-16227 |
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dspace |
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oai:repositorio:1-16227 Variations in Amazon forest productivity correlated with foliar nutrients and modelled rates of photosynthetic carbon supply Mercado, Lina Patiño, Sandra null, Tomas Fyllas, Nikolaos M. Weedon, Graham P. Sitch, Stephen A. Quesada, Carlos Alberto Phillips, Oliver L. Aragao, L. E.O.C. Malhi, Yadvinder Singh Dolman, A. Johannes Restrepo-Coupé, Natalia Saleska, Scott Reid Baker, Timothy R. Almeida, Samuel Miranda Higuchi, Niro Lloyd, Jon Aboveground Biomass Aboveground Production Climate Change Community Composition Forestry Production Growth Rate Nutrient Availability Nutrient Limitation Photosynthesis Soil Nutrient Tropical Forest Underpinning Amazon Basin The rate of above-ground woody biomass production, WP, in some western Amazon forests exceeds those in the east by a factor of 2 or more. Underlying causes may include climate, soil nutrient limitations and species composition. In this modelling paper, we explore the implications of allowing key nutrients such as N and P to constrain the photosynthesis of Amazon forests, and also we examine the relationship between modelled rates of photosynthesis and the observed gradients in WP. We use a model with current understanding of the underpinning biochemical processes as affected by nutrient availability to assess: (i) the degree to which observed spatial variations in foliar [N] and [P] across Amazonia affect stand-level photosynthesis; and (ii) how these variations in forest photosynthetic carbon acquisition relate to the observed geographical patterns of stem growth across the Amazon Basin. We find nutrient availability to exert a strong effect on photosynthetic carbon gain across the Basin and to be a likely important contributor to the observed gradient in WP. Phosphorus emerges as more important than nitrogen in accounting for the observed variations in productivity. Implications of these findings are discussed in the context of future tropical forests under a changing climate. © 2011 The Royal Society. 2020-05-31T18:24:32Z 2020-05-31T18:24:32Z 2011 Artigo https://repositorio.inpa.gov.br/handle/1/16227 10.1098/rstb.2011.0045 en Volume 366, Número 1582, Pags. 3316-3329 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Philosophical Transactions of the Royal Society B: Biological Sciences |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Aboveground Biomass Aboveground Production Climate Change Community Composition Forestry Production Growth Rate Nutrient Availability Nutrient Limitation Photosynthesis Soil Nutrient Tropical Forest Underpinning Amazon Basin |
| spellingShingle |
Aboveground Biomass Aboveground Production Climate Change Community Composition Forestry Production Growth Rate Nutrient Availability Nutrient Limitation Photosynthesis Soil Nutrient Tropical Forest Underpinning Amazon Basin Mercado, Lina Variations in Amazon forest productivity correlated with foliar nutrients and modelled rates of photosynthetic carbon supply |
| topic_facet |
Aboveground Biomass Aboveground Production Climate Change Community Composition Forestry Production Growth Rate Nutrient Availability Nutrient Limitation Photosynthesis Soil Nutrient Tropical Forest Underpinning Amazon Basin |
| description |
The rate of above-ground woody biomass production, WP, in some western Amazon forests exceeds those in the east by a factor of 2 or more. Underlying causes may include climate, soil nutrient limitations and species composition. In this modelling paper, we explore the implications of allowing key nutrients such as N and P to constrain the photosynthesis of Amazon forests, and also we examine the relationship between modelled rates of photosynthesis and the observed gradients in WP. We use a model with current understanding of the underpinning biochemical processes as affected by nutrient availability to assess: (i) the degree to which observed spatial variations in foliar [N] and [P] across Amazonia affect stand-level photosynthesis; and (ii) how these variations in forest photosynthetic carbon acquisition relate to the observed geographical patterns of stem growth across the Amazon Basin. We find nutrient availability to exert a strong effect on photosynthetic carbon gain across the Basin and to be a likely important contributor to the observed gradient in WP. Phosphorus emerges as more important than nitrogen in accounting for the observed variations in productivity. Implications of these findings are discussed in the context of future tropical forests under a changing climate. © 2011 The Royal Society. |
| format |
Artigo |
| author |
Mercado, Lina |
| author2 |
Patiño, Sandra null, Tomas Fyllas, Nikolaos M. Weedon, Graham P. Sitch, Stephen A. Quesada, Carlos Alberto Phillips, Oliver L. Aragao, L. E.O.C. Malhi, Yadvinder Singh Dolman, A. Johannes Restrepo-Coupé, Natalia Saleska, Scott Reid Baker, Timothy R. Almeida, Samuel Miranda Higuchi, Niro Lloyd, Jon |
| author2Str |
Patiño, Sandra null, Tomas Fyllas, Nikolaos M. Weedon, Graham P. Sitch, Stephen A. Quesada, Carlos Alberto Phillips, Oliver L. Aragao, L. E.O.C. Malhi, Yadvinder Singh Dolman, A. Johannes Restrepo-Coupé, Natalia Saleska, Scott Reid Baker, Timothy R. Almeida, Samuel Miranda Higuchi, Niro Lloyd, Jon |
| title |
Variations in Amazon forest productivity correlated with foliar nutrients and modelled rates of photosynthetic carbon supply |
| title_short |
Variations in Amazon forest productivity correlated with foliar nutrients and modelled rates of photosynthetic carbon supply |
| title_full |
Variations in Amazon forest productivity correlated with foliar nutrients and modelled rates of photosynthetic carbon supply |
| title_fullStr |
Variations in Amazon forest productivity correlated with foliar nutrients and modelled rates of photosynthetic carbon supply |
| title_full_unstemmed |
Variations in Amazon forest productivity correlated with foliar nutrients and modelled rates of photosynthetic carbon supply |
| title_sort |
variations in amazon forest productivity correlated with foliar nutrients and modelled rates of photosynthetic carbon supply |
| publisher |
Philosophical Transactions of the Royal Society B: Biological Sciences |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/16227 |
| _version_ |
1787141137429954560 |
| score |
11.653393 |