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@InProceedings{BormaBBFBONGLL:2019:SoPoEx,
               author = "Borma, Laura de Simone and Brum, Mauro and Barros, Fernanda de V. 
                         and Fonseca, Let{\'{\i}}cia D'Agosto Miguel and Bittencourt, 
                         Paulo and Oliveira, Rafael S. and Nascimento, Denis and Gentine, 
                         Pierre and Lintner, Benjamin R. and Lee, Jung-Eun",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Estadual de Campinas (UNICAMP)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Universidade Estadual de Campinas 
                         (UNICAMP)} and {Universidade Estadual de Campinas (UNICAMP)} and 
                         {Instituto Nacional de Pesquisas da Amaz{\^o}nia (INPA)} and 
                         {Columbia University} and Rutgers and {Brown University}",
                title = "Soil porosity explains Amazon forest response to droughts?",
                 year = "2019",
         organization = "AGU Fall Meeting",
             abstract = "One of the most intriguing aspects of Amazon forest functioning is 
                         its capacity to maintain elevated evapotranspiration (ET) and 
                         photosynthetic capacity during the dry season and even during some 
                         severe droughts. Until now, the principal mechanisms by which the 
                         Amazon forests increase or maintain ET rates and photosynthetic 
                         activity during dry periods have considered the soil as a 
                         vertically homogeneous media which stores water during the wet 
                         periods and releases it to plants as a function of the rooting 
                         depth. However, the soil system is more complex. Small variations 
                         in the soil porosity and animal roles (i.e. biopores) can favor 
                         plant root developments. Our results show that, in the Central 
                         Amazon, plant roots develop preferentially in layers with greater 
                         macroporosity and lower silt contents (i.e. above 1m depth and at 
                         around 2.4 m and 3.2 m). In turn, the soil properties in these 
                         layers favor root development (e.g., through lower mechanical 
                         resistance), and they increase rainfall infiltration through the 
                         development of preferential flow, further helping photosynthesis 
                         maintenance and plant growth. This soil-rooting feedback mechanism 
                         may be a key mechanism for the maintenance of photosynthesis and 
                         transpiration rates in dry periods.",
  conference-location = "San Francisco, CA",
      conference-year = "09-13 dec.",
             language = "en",
        urlaccessdate = "20 jan. 2021"
}


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