loading page

VEGETATION COVER AND REGENERATION AS PREDICTORS OF DESERTIFICATION PROCESS IN DRY FOREST IN BRAZIL
  • +3
  • Stefanny Martins de Souza,
  • Maiara Bezerra Ramos,
  • Maria Gracielle Rodrigues Maciel,
  • Sonaly Silva da Cunha,
  • José João Lelis Leal de Souza,
  • Sérgio de Faria Lopes
Stefanny Martins de Souza
Universidade Estadual da Paraiba

Corresponding Author:[email protected]

Author Profile
Maiara Bezerra Ramos
Universidade Estadual da Paraiba
Author Profile
Maria Gracielle Rodrigues Maciel
Universidade Estadual da Paraiba
Author Profile
Sonaly Silva da Cunha
Universidade Estadual da Paraiba
Author Profile
José João Lelis Leal de Souza
Universidade Federal de Vicosa
Author Profile
Sérgio de Faria Lopes
Universidade Estadual da Paraiba
Author Profile

Abstract

The Brazilian Caatinga is one of the most diverse dry forests on the planet. Half of its original coverage is degraded, and it is currently identified as one of the main areas undergoing desertification. Natural regeneration depends on climatic and edaphic conditions, as well as the adult stratum present in an area. Despite its importance, this process is little known in the Caatinga. Thus, we aimed to analyze how the anthropic disturbance, vegetation cover, and soil properties influence regenerating stratum under different Caatinga vegetation cover levels. Our study was executed in the driest region of Brazil. We classified our studied areas as Area I (less vegetation cover) and Area II (greater coverage). Six plots of 50 x 20 m were delimited for sampling the adult and regenerating stratum, and the soil in each area. Our results show interactions between soil characteristics and adult and regenerating stratum. Area II showed greater diversity and a greater number of exclusive species; in contrast, a dominance of species more resistant to limiting conditions was observed in Area I, such as Aspidosperma pyrifolium Mart. & Zucc. The C and N contents in the soil indicated a positive and significant correlation with the diversity of the regenerating stratum. The data revealed that the area with less vegetation cover, richness, and diversity presented indications of desertification.
26 Feb 2024Submitted to Land Degradation & Development
26 Feb 2024Assigned to Editor
26 Feb 2024Submission Checks Completed
03 Mar 2024Reviewer(s) Assigned