Land (Jun 2022)

Dynamic Modeling of Land Use and Coverage Changes in the Dryland Pernambuco, Brazil

  • Cinthia Pereira de Oliveira,
  • Robson Borges de Lima,
  • Francisco Tarcísio Alves Junior,
  • Mayara Maria de Lima Pessoa,
  • Anderson Francisco da Silva,
  • Nattan Adler Tavares dos Santos,
  • Iran Jorge Corrêa Lopes,
  • Cybelle Laís Souto-Maior Sales de Melo,
  • Emanuel Araújo Silva,
  • José Antônio Aleixo da Silva,
  • Rinaldo Luiz Caraciolo Ferreira

DOI
https://doi.org/10.3390/land11070998
Journal volume & issue
Vol. 11, no. 7
p. 998

Abstract

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The objective of this work was to carry out a multitemporal analysis of changes in land use and land cover in the municipality of Floresta, Pernambuco State in Brazil. Landsat images were used in the years 1985, 1989, 1993, 1997, 2001, 2005, 2009, 2014, and 2019, and the classes were broken down into areas: water, exposed soil, agriculture, and forestry, and using the Bhattacharya classifier, the classification was carried out for generating land use maps. The data was validated by the Kappa index and points collected in the field, and the projection of the dynamics of use for 2024 was constructed. The thematic maps of land use and coverage from 1985 to 2019 show more significant changes in the forest and exposed soil classes. The increase in the forest class and the consequent reduction in exposed soil are consequences of the interaction between climate and human activities and the quality of the spatial resolution of the satellite images used between the years analyzed.

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