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Brazilian Journal of Botany

, Volume 42, Issue 1, pp 43–51 | Cite as

Natural regeneration of the vegetation of an abandoned agricultural field in a semi-arid region: a focus on seed bank and above-ground vegetation

  • Pedro Arthur do Nascimento Oliveira
  • Josiene Maria Falção Fraga dos Santos
  • Elcida de Lima Araújo
  • Danielle Melo dos Santos
  • André Mauricio Melo Santos
  • Kleber Andrade da SilvaEmail author
Original Article
  • 86 Downloads

Abstract

Forest age has been reported to be a determining factor affecting species richness and composition or population abundance in forests and soil seed banks in fragmented landscapes. In this study, we characterized species richness, density, and floristic composition of the above-ground vegetation and the seed bank in young and mature forest fragments in a semi-arid region of north-eastern Brazil. Forty plots were set up in the mature forest and 40 in the young forest. Herbaceous species and seedlings and juveniles of woody species up to 1 m in height were included in the sampling of above-ground vegetation. Seed bank samples including leaf litter were collected and maintained in a greenhouse for 6 months. Our findings indicated a similarity in species richness between seed bank and above-ground vegetation. The floristic composition of the seed bank was similar from that of the above-ground vegetation throughout succession. The mean density of the seed bank was higher than that of the above-ground vegetation in both forests. Therefore, only a subset of the seeds stored in the soil seemed to consistently contribute to the natural regeneration of forests.

Keywords

Anthropogenic areas “Caatinga” Conservation Dry tropical forest Seedling emergence 

Notes

Acknowledgements

The authors thank the Institute of Agriculture and Livestock Research (IPA) for logistic support; researchers of the Laboratory of Plant Ecology and Northeastern Ecosystems (LEVEN) for support during field work and data analysis; and National Council for Scientific and Technological Development (CNPq), Coordination of Improvement of Higher Education Personnel (CAPES–PNPD) and Pernambuco Science and Technology Foundation (FACEPE—Process: APQ-0083-2.05/15 and DCR/CNPq Scholarship) for financial support and fellowships.

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Copyright information

© Botanical Society of Sao Paulo 2019

Authors and Affiliations

  • Pedro Arthur do Nascimento Oliveira
    • 1
  • Josiene Maria Falção Fraga dos Santos
    • 1
  • Elcida de Lima Araújo
    • 1
  • Danielle Melo dos Santos
    • 2
  • André Mauricio Melo Santos
    • 2
  • Kleber Andrade da Silva
    • 2
    Email author
  1. 1.Departamento de BiologiaUniversidade Federal Rural de PernambucoRecifeBrazil
  2. 2.Universidade Federal de Pernambuco, Centro Acadêmico de VitóriaVitória de Santo AntãoBrazil

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