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Gvozdevaite A, Oliveras I, Domingues TF, Peprah T, Boakye M, Afriyie L, da Silva Peixoto K, de Farias J, Almeida de Oliveira E, Almeida Farias CC, Dos Santos Prestes NCC, Neyret M, Moore S, Schwantes Marimon B, Marimon Junior BH, Adu-Bredu S, Malhi Y. Leaf-level photosynthetic capacity dynamics in relation to soil and foliar nutrients along forest-savanna boundaries in Ghana and Brazil. Tree Physiol 2018; 38:1912-1925. [PMID: 30388271 DOI: 10.1093/treephys/tpy117] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 10/04/2018] [Indexed: 06/08/2023]
Abstract
Forest-savanna boundaries extend across large parts of the tropics but the variability of photosynthetic capacity in relation to soil and foliar nutrients across these transition zones is poorly understood. For this reason, we compared photosynthetic capacity (maximum rate of carboxylation of Rubisco at 25 C° (Vcmax25), leaf mass, nitrogen (N), phosphorus (P) and potassium (K) per unit leaf area (LMA, Narea, Parea and Karea, respectively), in relation to respective soil nutrients from 89 species at seven sites along forest-savanna ecotones in Ghana and Brazil. Contrary to our expectations, edaphic conditions were not reflected in foliar nutrient concentrations but LMA was slightly higher in lower fertility soils. Overall, each vegetation type within the ecotones demonstrated idiosyncratic and generally weak relationships between Vcmax25 and Narea, Parea and Karea. Species varied significantly in their Vcmax25 ↔ Narea relationship due to reduced investment of total Narea in photosynthetic machinery with increasing LMA. We suggest that studied species in the forest-savanna ecotones do not maximize Vcmax25 per given total Narea due to adaptation to intermittent water availability. Our findings have implications for global modeling of Vcmax25 and forest-savanna ecotone productivity.
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Affiliation(s)
- Agne Gvozdevaite
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Imma Oliveras
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Tomas Ferreira Domingues
- Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Theresa Peprah
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, KNUST, Ghana
| | - Mickey Boakye
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, KNUST, Ghana
| | - Lydia Afriyie
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, KNUST, Ghana
| | - Karine da Silva Peixoto
- Departamento de Ciências Biológicas Nova Xavantina, Universidade do Estado de Mato Grosso, Nova Xavantina, MT, Brazil
| | - Josenilton de Farias
- Departamento de Ciências Biológicas Nova Xavantina, Universidade do Estado de Mato Grosso, Nova Xavantina, MT, Brazil
| | - Edmar Almeida de Oliveira
- Departamento de Ciências Biológicas Nova Xavantina, Universidade do Estado de Mato Grosso, Nova Xavantina, MT, Brazil
| | | | | | - Margot Neyret
- Centre IRD France Nord - iEES Paris, 32, av. Henri Varagnat BONDY cedex, France
| | - Sam Moore
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Beatriz Schwantes Marimon
- Departamento de Ciências Biológicas Nova Xavantina, Universidade do Estado de Mato Grosso, Nova Xavantina, MT, Brazil
| | - Ben Hur Marimon Junior
- Departamento de Ciências Biológicas Nova Xavantina, Universidade do Estado de Mato Grosso, Nova Xavantina, MT, Brazil
| | - Stephen Adu-Bredu
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, KNUST, Ghana
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
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Gvozdevaite A, Oliveras I, Domingues TF, Peprah T, Boakye M, Afriyie L, da Silva Peixoto K, de Farias J, Almeida de Oliveira E, Almeida Farias CC, Dos Santos Prestes NCC, Neyret M, Moore S, Schwantes Marimon B, Marimon Junior BH, Adu-Bredu S, Malhi Y. Leaf-level photosynthetic capacity dynamics in relation to soil and foliar nutrients along forest-savanna boundaries in Ghana and Brazil. Tree Physiol 2018; 38:1926. [PMID: 30551152 DOI: 10.1093/treephys/tpy136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Indexed: 06/09/2023]
Affiliation(s)
- Agne Gvozdevaite
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Imma Oliveras
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Tomas Ferreira Domingues
- Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Theresa Peprah
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, KNUST, Ghana
| | - Mickey Boakye
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, KNUST, Ghana
| | - Lydia Afriyie
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, KNUST, Ghana
| | - Karine da Silva Peixoto
- Departamento de Ciências Biológicas Nova Xavantina, Universidade do Estado de Mato Grosso, Nova Xavantina, MT, Brazil
| | - Josenilton de Farias
- Departamento de Ciências Biológicas Nova Xavantina, Universidade do Estado de Mato Grosso, Nova Xavantina, MT, Brazil
| | - Edmar Almeida de Oliveira
- Departamento de Ciências Biológicas Nova Xavantina, Universidade do Estado de Mato Grosso, Nova Xavantina, MT, Brazil
| | | | | | - Margot Neyret
- Centre IRD France Nord - iEES Paris, 32, av. Henri Varagnat BONDY cedex, France
| | - Sam Moore
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Beatriz Schwantes Marimon
- Departamento de Ciências Biológicas Nova Xavantina, Universidade do Estado de Mato Grosso, Nova Xavantina, MT, Brazil
| | - Ben Hur Marimon Junior
- Departamento de Ciências Biológicas Nova Xavantina, Universidade do Estado de Mato Grosso, Nova Xavantina, MT, Brazil
| | - Stephen Adu-Bredu
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, KNUST, Ghana
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
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