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Polibotánica
versión impresa ISSN 1405-2768
Resumen
LEAL-ELIZONDO, N.A. et al. Structure and diversity of tamaulipan thornscrub regenerated after livestock in northeast Mexico. Polibotánica [online]. 2018, n.45, pp.75-88. ISSN 1405-2768. https://doi.org/10.18387/polibotanica.45.6.
The aim of this research was to evaluate the structure and plant diversity of tree and shrub species of an area with a history of livestock use in the Tamaulipan Thornscrub. In 2012, 20 years after being suspended livestock activity, four sampling sites were established 1 600 m2. In the sampling sites it was conducted a census of all woody species, recording dasometric information as total height (h), basal diameter (d 0.10 m) and canopy diameter (d copa). According to the results we registered 12 species belonging to 12 genera and 7 families. The Fabaceae family has the highest number of species with 6 species. The height ranging from 0.5 to 12.4 m, it has a basal area of 13.76 m2/ha, and a canopy area of 5 271 m2/ha and a density of 1 156 N/ha. The species with greater ecological weight according to the index of importance value is Vachellia farnesiana with 60.49% of this value, which it’s the most dominant representing 81.08% of the canopy cover of all species in the study area. It registered a value of H' of 0.86 and a value of D Mg of 1.66. According to the graph of rank abundance distribution community it has a geometric model, which is dominated by the high presence of the species V. farnesiana.
Palabras llave : Fabaceae; Vachellia farnesiana; importance value index.