@Article{MartinelliNSRACDFFGLMMMMMOOSSSSV:2021:DeEcFu,
               author = "Martinelli, L. A. and Nardoto, G. B. and Soltangheisi, A. and 
                         Reis, C. R. G. and Abdalla-Filho, A. L. and Camargo, P. B. and 
                         Domingues, T. F. and Faria, D. and Figueira, A. M. and Gomes, T. 
                         F. and Lins, S. R. M. and Mardegan, S. F. and Mariano, E. and 
                         Miatto, R. C. and Moraes, R. and Moreira, M. Z. and Oliveira, R. 
                         S. and Ometto, Jean Pierre Henry Balbaud and Santos, F. L. S. and 
                         Sena-Souza, J. and Silva, D. M. L. and Silva, J. C. S. S. and 
                         Vieira, S. A.",
          affiliation = "{Universidade de S{\~a}o Paulo (USP)} and {Universidade de 
                         Bras{\'{\i}}lia (UnB)} and {Universidade de S{\~a}o Paulo 
                         (USP)} and {Universidade de Bras{\'{\i}}lia (UnB)} and 
                         {Universidade de S{\~a}o Paulo (USP)} and {Universidade de 
                         S{\~a}o Paulo (USP)} and {Universidade de S{\~a}o Paulo (USP)} 
                         and {Universidade de Santa Cruz} and {Universidade Federal do 
                         Oeste do Par{\'a} (UFOPA)} and {Universidade de S{\~a}o Paulo 
                         (USP)} and {Universidade Federal de Pernambuco (UFPE)} and 
                         {Universidade Federal do Par{\'a} (UFPA)} and {Universidade de 
                         S{\~a}o Paulo (USP)} and {Universidade de S{\~a}o Paulo (USP)} 
                         and {Universidade de Santa Cruz} and {Universidade de S{\~a}o 
                         Paulo (USP)} and {Universidade Estadual de Campinas (UNICAMP)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade de Bras{\'{\i}}lia (UnB)} and {Universidade 
                         Estadual de Montes Claros} and {Universidade Estadual de Santa 
                         Cruz} and {Universidade de S{\~a}o Paulo (USP)} and {Universidade 
                         Estadual de Campinas (UNICAMP)}",
                title = "Determining ecosystem functioning in Brazilian biomes through 
                         foliar carbon and nitrogen concentrations and stable isotope 
                         ratios",
              journal = "Biogeochemistry",
                 year = "2021",
               volume = "154",
               number = "2",
                pages = "405--423",
                month = "June",
             keywords = "Biogeochemical diversity, Climate models, Foliar nutrients, Leaf 
                         economics spectrum, Tropical forests.",
             abstract = "By analyzing 6,480 tree leaf samples from 57 sites within 
                         Brazilian biomes, we considered whether vegetation types in 
                         terrestrial ecosystems reflect biogeochemical diversity and 
                         whether they fit into a leaf economics spectrum (LES). To achieve 
                         this, we investigated the relations among leaf carbon (C) and 
                         nitrogen (N) concentrations, their isotope natural abundance and 
                         C:N ratio. In addition, we tested their correlations with mean 
                         annual temperature (MAT) and precipitation (MAP), as climatic 
                         factors. We found consistent differences in the C and N 
                         concentrations and their isotopic composition among the vegetation 
                         types. MAP is the main climatic driver of changes in N, C:N ratio, 
                         \δ15N, and \δ13C, correlating negatively with N and 
                         positively with C:N ratio. These relations show that these biomes 
                         follow an LES. The Caatinga had the highest \δ15N values, 
                         suggesting that N residence time in soil is longer due to low 
                         leaching and plant uptake. We observed that MAP is not the only 
                         factor influencing \δ13C values in different biomes; instead 
                         canopy effect probably explains the highest values observed in the 
                         Cerrado. Our results reinforce earlier findings that life 
                         diversity in the tropics reflects biogeochemistry diversity and 
                         leaf \δ15N opens the possibility for investigating plant 
                         trade-offs dictated by the LES. Finally, we expect our findings to 
                         contribute to a better understanding of the tropics in global 
                         climate models.",
                  doi = "10.1007/s10533-020-00714-2",
                  url = "http://dx.doi.org/10.1007/s10533-020-00714-2",
                 issn = "0168-2563",
             language = "en",
           targetfile = "martinelli_determinating.pdf",
        urlaccessdate = "20 maio 2024"
}