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@InProceedings{MalhiGDMGSMSSHRHAAMPFG:2015:WhCaBu,
               author = "Malhi, Yadvinder and Girardin, C{\'e}cile and Doughty, Chris and 
                         Metcalfe, Daniel and Goldsmith, Greg and Silman, Miles and Meir, 
                         Patrick and Salinas, Norma and Silva-Espejo, Javier and Huasco, 
                         Walter Huaraca and Rios, William Farfan and Halladay, Kate and 
                         Am{\'e}zquita, Fililo Farf{\`a}n and Arag{\~a}o, Luiz Eduardo 
                         Oliveira e Cruz de and Marthews, Toby R. and Phillips, Oliver L. 
                         and Fisher, Joshua B. and Galiano-Cabrera, Darcy F.",
          affiliation = "{University of Oxford} and {University of Oxford} and {University 
                         of Oxford} and {Swedish University of Agricultural Sciences} and 
                         {Paul Scherrer Institute} and {Wake Forest University} and 
                         {University of Edinborough} and {University of Oxford} and 
                         {Universidad Nacional San Antonio Abad del Cusco} and {Universidad 
                         Nacional San Antonio Abad del Cusco} and {Universidad Nacional San 
                         Antonio Abad del Cusco} and Met Office, Exeter and {Universidad 
                         Nacional San Antonio Abad del Cusco} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {University of Oxford} and 
                         {University of Leeds} and {California Institute of Technology} and 
                         {Universidad Nacional San Antonio Abad del Cusco}",
                title = "Explaining the low growth rates and biomass of tropical montane 
                         forests: a whole carbon budget perspective",
                 year = "2015",
         organization = "Annual Meeting of the Association for Tropical Biology and 
                         Conservation, 52.",
             abstract = "Why do tropical montane forests grow more slowly, and have lower 
                         biomass, than tropical lowland forests? To address this question, 
                         research to date has generally focused on correlative approaches 
                         describing changes in growth and biomass as a function of changes 
                         in elevation-related variables such as temperature. We present a 
                         novel, mechanistic approach to this question by attempting to 
                         quantify each component of the whole autotrophic carbon budget in 
                         tropical forests along a 2800 m elevation transect in the Peruvian 
                         Andes. We find that low growth rates at high elevations in our 
                         site are primarily driven by low rates of gross primary 
                         productivity (GPP), with little shift in ecosystem carbon use 
                         efficiency (CUE) or allocation of net primary productivity (NPP). 
                         Rather than a gradual linear decline in GPP or NPP, there is some 
                         evidence of a sharp transition at the ecotone between submontane 
                         and montane cloud forests, suggesting that cloud immersion, not 
                         temperature, may the primary abiotic driver of the decline in GPP. 
                         Photosynthetic capacity does not strongly decline with elevation 
                         on this transect, providing evidence that neither temperature nor 
                         nutrient limitation restrict maximum rates of photosynthesis at 
                         high elevations. The results suggest that the decline in GPP is 
                         driven by reduction in actual (not potential) rates of 
                         photosynthesis due to increased cloud immersion. Biomass residence 
                         times show a slight increase with elevation, but the low biomass 
                         of higher elevation forests predominantly reflects low growth 
                         rates, which in turn reflects cloud-inhibited rates of 
                         photosynthesis. Tropical mountains are projected to experience 
                         unprecedented rates of warming that may alter patterns of cloud 
                         immersion, raising the possibility for shifts in growth, biomass 
                         and ecosystem functioning as a whole.",
  conference-location = "Honolulu, Hawaii",
      conference-year = "12-16 July",
             language = "en",
        urlaccessdate = "05 dez. 2020"
}


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