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Mapping of habitats at the Lencois Maranhenses National Park (Maranhão state, Brazil)

Grant number: 20/08668-4
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): August 01, 2020
Effective date (End): May 31, 2021
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Physical Geography
Principal researcher:Reinaldo Paul Pérez Machado
Grantee:Marco Antonio Martins
Home Institution: Faculdade de Filosofia, Letras e Ciências Humanas (FFLCH). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

The mapping of habitats in ecotone zones, due to the existent diversity of environments, require the use of appropriate resources for its investigation (CORBANE et al., 2015). The Geographic Object-Based Image Analysis (Geobia) was consecrated as a robust instrument for automatic extraction of data and geographic mapping (KUX; SOUZA, 2012). This technique will be utilized for the extraction of thirteen typologies of habitats at the Lençóis Maranhenses National Park (Maranhão State, Brazil), from two Landsat 8 satellite images, with date of acquisition at the periods of high and low pluviosity. As indicated for this type of mapping, a spatial association will be made between the habitats and their occurring plants species (CORBANE et al., 2015 apud SCHMIDTLEIN; SASSIN, 2004). It is expected that the vector data of the physical environment produced by this research will be utilized in the Project Socio-environmental Atlas of Lençóis Maranhenses (Nº 2017/26.794-4) and that the parameters tested for the mapping can produce a high accuracy, contributing to the atlas final product and to future mapping of habitats with Geobia.

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