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Improvement of the hydrology-soil relationship in a vegetation model based on functional attributes

Grant number: 19/13173-7
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): August 01, 2019
Effective date (End): July 31, 2020
Field of knowledge:Biological Sciences - Ecology - Ecosystems Ecology
Principal researcher:David Montenegro Lapola
Grantee:Gabriel Banstarck Marandola
Home Institution: Centro de Pesquisas Meteorológicas e Climáticas Aplicadas à Agricultura (CEPAGRI). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:15/02537-7 - AmazonFACE/ME: the Amazon-FACE Model-Experiment integration project - the role of biodiversity and climate feedbacks, AP.PFPMCG.JP


The development of vegetation models that represent edaphic patterns and their relations with the hydrological cycle in a more reliable way is essential for the study of the impacts of climate change in the terrestrial ecosystems, especially in regions where the hydrological cycle impacts go beyond its own area as the Amazon basin. Therefore, this proposal intend to improve the representation of the hydrological cycle in the trait-based vegetation model CAETÊ (Carbon and Ecosystem functional Trait Evaluation model). For such upgrade, the soil textures of the entire globe will be included through a reference map, in addition to the inclusion of multiple soil layers. With a satisfactory simulation of the soil layers, the functional traits may be explored through the model in different manners, which can lead to a more accurate vegetation representation. Posteriorly, a drought sensibility analysis will be realized, reducing precipitation by 50%, in which it will be possible to compare the version developed with previous and experimental data through variables such as NPP, GPP, biomass, soil water and evapotranspiration.

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