Variations in Amazon forest productivity correlated with foliar nutrients and modelled rates of photosynthetic carbon supply
Mercado, LM
Patiño, S
Domingues, TF
Fyllas, NM
Weedon, GP
Sitch, S
Quesada, CA
Phillips, OL
Aragão, LEOC
Malhi, Y
Dolman, AJ
Restrepo-Coupe, N
Saleska, SR
Baker, TR
Almeida, S
Higuchi, N
Lloyd, J
- Publication Type:
- Journal Article
- Citation:
- Philosophical Transactions of the Royal Society B: Biological Sciences, 2011, 366 (1582), pp. 3316 - 3329
- Issue Date:
- 2011-01-01
Closed Access
Filename | Description | Size | |||
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2011000526OK.pdf | 731.62 kB | Adobe PDF |
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Full metadata record
Field | Value | Language |
---|---|---|
dc.contributor.author | Mercado, LM | en_US |
dc.contributor.author | Patiño, S | en_US |
dc.contributor.author | Domingues, TF | en_US |
dc.contributor.author | Fyllas, NM | en_US |
dc.contributor.author | Weedon, GP | en_US |
dc.contributor.author | Sitch, S | en_US |
dc.contributor.author | Quesada, CA | en_US |
dc.contributor.author | Phillips, OL | en_US |
dc.contributor.author | Aragão, LEOC | en_US |
dc.contributor.author | Malhi, Y | en_US |
dc.contributor.author | Dolman, AJ | en_US |
dc.contributor.author |
Restrepo-Coupe, N https://orcid.org/0000-0003-3921-1772 |
en_US |
dc.contributor.author | Saleska, SR | en_US |
dc.contributor.author | Baker, TR | en_US |
dc.contributor.author | Almeida, S | en_US |
dc.contributor.author | Higuchi, N | en_US |
dc.contributor.author | Lloyd, J | en_US |
dc.date.issued | 2011-01-01 | en_US |
dc.identifier.citation | Philosophical Transactions of the Royal Society B: Biological Sciences, 2011, 366 (1582), pp. 3316 - 3329 | en_US |
dc.identifier.issn | 0962-8436 | en_US |
dc.identifier.uri | http://hdl.handle.net/10453/18101 | |
dc.description.abstract | 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. | en_US |
dc.relation.ispartof | Philosophical Transactions of the Royal Society B: Biological Sciences | en_US |
dc.relation.isbasedon | 10.1098/rstb.2011.0045 | en_US |
dc.subject.classification | Evolutionary Biology | en_US |
dc.subject.mesh | Plant Leaves | en_US |
dc.subject.mesh | Plant Stems | en_US |
dc.subject.mesh | Trees | en_US |
dc.subject.mesh | Carbon Dioxide | en_US |
dc.subject.mesh | Carbon | en_US |
dc.subject.mesh | Nitrogen | en_US |
dc.subject.mesh | Phosphorus | en_US |
dc.subject.mesh | Soil | en_US |
dc.subject.mesh | Atmosphere | en_US |
dc.subject.mesh | Tropical Climate | en_US |
dc.subject.mesh | Photosynthesis | en_US |
dc.subject.mesh | Models, Biological | en_US |
dc.subject.mesh | Wood | en_US |
dc.subject.mesh | Computer Simulation | en_US |
dc.subject.mesh | Brazil | en_US |
dc.title | Variations in Amazon forest productivity correlated with foliar nutrients and modelled rates of photosynthetic carbon supply | en_US |
dc.type | Journal Article | |
utslib.citation.volume | 1582 | en_US |
utslib.citation.volume | 366 | en_US |
utslib.for | 0602 Ecology | en_US |
utslib.for | 0705 Forestry Sciences | en_US |
utslib.for | 06 Biological Sciences | en_US |
utslib.for | 11 Medical and Health Sciences | en_US |
pubs.embargo.period | Not known | en_US |
pubs.organisational-group | /University of Technology Sydney | |
pubs.organisational-group | /University of Technology Sydney/Faculty of Science | |
utslib.copyright.status | closed_access | |
pubs.issue | 1582 | en_US |
pubs.publication-status | Published | en_US |
pubs.volume | 366 | en_US |
Abstract:
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.
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