African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

Phytosociological survey of arboreous species in conserved and desertified areas in the semi-arid region of Paraíba, Brazil

Jhony Vendruscolo*
  • Jhony Vendruscolo*
  • Ciência do Solo, Universidade Federal da Paraíba, Areia, PB. Brazil.
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Aldrin Martin Perez Marin
  • Aldrin Martin Perez Marin
  • Ciência do Solo, Universidade Federal da Paraíba, Areia, PB. Brazil.
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Bruno de Oliveira Dias
  • Bruno de Oliveira Dias
  • Ciência do Solo, Universidade Federal da Paraíba, Areia, PB. Brazil.
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Evaldo dos Santos Felix
  • Evaldo dos Santos Felix
  • Ciência do Solo, Universidade Federal da Paraíba, Areia, PB. Brazil.
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Allana dos Anjos Coutinho
  • Allana dos Anjos Coutinho
  • Instituto Nacional do Semiárido, Brazil.
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Karoline Ruiz Ferreira
  • Karoline Ruiz Ferreira
  • Engenharia Florestal, Universidade Federal de Rondônia, Brazil.
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  •  Received: 04 September 2016
  •  Accepted: 27 January 2017
  •  Published: 09 March 2017

Abstract

The objective of this study is to perform a phytosociological survey of the arboreous composition in conserved and desertified areas of the semiarid region of Paraiba State. Twenty-two conserved areas (CA) with native vegetation (Caatinga) where there has been no clear cut logging since 1984, and Twenty-two desertified areas (DA) having a difficult re-establishment of vegetal coverage over the past 10 years were selected. Plots with 100 m2 were established and the species were identified. The perimeter at 0.30 m ground level (PGL) and at breast height, 1.30 m (PBH) was measured. Subsequently, the absolute density (AD), relative density (RD), absolute frequency (AF), relative frequency (RF), absolute dominance (ADo), relative dominance (RDo), importance value index (IVI) and coverage value index (CVI) were calculated. There were 63 species of trees in CA and 9 in DA. The most frequent species were Caesalpinia pyramidalis and Croton sonderianus in CA, and Mimosa tenuiflora and Croton sonderianus in DA. CA showed an AD (4,845 I ha-1) higher than DA (895 I ha-1). The ADo order was C. pyramidalis > Anadenanthera colubrina > Myracrodruon urundeuva in CA, and M. tenuiflora > C. pyramidalis > Aspidosperma pyrifolium in DA. C. sonderianus (CA) and M. tenuiflora (DA) reached the highest IVI and CVI.

Key words: Caatinga, vegetation, biodiversity, environmental quality.