@Article{MaireNoChPoGoBoLa:2013:TrStLi,
               author = "Maire, G. le and Nouvellon, Y. and Christina, M. and Ponzoni, 
                         Fl{\'a}vio Jorge and Gon{\c{c}}alves, J. L. M. and Bouillet, J. 
                         -P. and Laclau, J. -P.",
          affiliation = "CIRAD, UMR Eco \& Sols, F-34060 Montpellier, France. and CIRAD, 
                         UMR Eco \& Sols, F-34060 Montpellier, France.; Univ Sao Paulo, 
                         Dept Atmospher Sci, IAG, Sao Paulo, Brazil. and CIRAD, UMR Eco \& 
                         Sols, F-34060 Montpellier, France. and Natl Inst Space Res, INPE, 
                         Remote Sensing Dept, Sao Jose Dos Campos, Brazil. and Univ Sao 
                         Paulo, ESALQ, Forest Dept, Piracicaba, Brazil. and CIRAD, UMR Eco 
                         \& Sols, F-34060 Montpellier, France.; Univ Sao Paulo, ESALQ, 
                         Forest Dept, Piracicaba, Brazil. and CIRAD, UMR Eco \& Sols, 
                         F-34060 Montpellier, France.; Univ Sao Paulo, Dept Ecol, Sao 
                         Paulo, Brazil.",
                title = "Tree and stand light use efficiencies over a full rotation of 
                         single- and mixed-species Eucalyptus grandis and Acacia mangium 
                         plantations",
              journal = "Forest Ecology and Management",
                 year = "2013",
               volume = "288",
               number = "SI",
                pages = "31--42",
                month = "Jan.",
             keywords = "MAESTRA, Radiation use efficiency, Eucalypt, Light capture, Canopy 
                         structure.",
             abstract = "Understanding the light absorption and light use efficiency of 
                         each species at the tree scale is essential to disentangle the 
                         effects of intra- and inter-species interactions on productivity 
                         in mixed-species forest plantations. A complete randomized block 
                         design was set up using Eucalyptus grandis (E) and Acacia mangium 
                         (A), which is a N-2-fixing species, planted in monospecific stands 
                         (100A, 100E) and in additive (25A:100E, 50A:100E, 100A:100E) and 
                         replacement (50A:50E) mixtures. Tree size and biomass were 
                         monitored over the complete rotation (6 years). The absorbed 
                         photosynthetically active radiation (APAR) for each tree in the 
                         experiment was simulated over the full rotation with the MAESTRA 
                         model. Measurements of tree leaf area, leaf angle distributions, 
                         leaf area density, and leaf and soil optical properties were 
                         performed to parameterize this model. The APAR and the ratio of 
                         stem biomass increment divided by the APAR (which is a measure of 
                         the Light Use Efficiency [LUE] for stem production) were 
                         calculated at tree and plot scales for each year of the rotation. 
                         The LUE of the 100E stand increased with age until stabilizing at 
                         4 years of age, while the LUE of the 100A stand decreased between 
                         2 and 4 years of age and increased between the two last years of 
                         the rotation. Eucalyptus trees dominated Acacia trees in mixed 
                         plantations. The stratification of the canopy led to an increase 
                         of stand Leaf Area Index (LAI) and APAR compared to monospecific 
                         plantations. However, both Eucalyptus and Acacia LUE decreased at 
                         the end of the rotation in the mixed-species stands, with the 
                         decrease occurring more markedly in Acacia, and the final stem 
                         biomass of the stand was not enhanced in mixed-species plantations 
                         compared with the average of the pure stands. Our results indicate 
                         that a stratified canopy may offer the potential benefit of 
                         capturing more light in mixed-species forests, but this may be 
                         negated if another resource deficiency prevents trees from 
                         converting intercepted radiation into dry matter. Mixed-species 
                         plantations should be established at sufficiently rainfed sites to 
                         maximize LUE, and appropriate fertilizer regimes should be 
                         applied.",
                  doi = "10.1016/j.foreco.2012.03.005",
                  url = "http://dx.doi.org/10.1016/j.foreco.2012.03.005",
                 issn = "0378-1127",
                label = "isi",
             language = "en",
           targetfile = "1-s2.0-S0378112712001296-main.pdf",
                  url = "http://dx.doi.org/10.1016/j.foreco.2012.03.005",
        urlaccessdate = "30 jun. 2024"
}