Abstract

SILVA-GONZALEZ, Edgar et al. Assessment of the forest harvesting effect on the diversity and structure of a temperate forest in the state of Durango. Rev. mex. de cienc. forestales [online]. 2022, vol.13, n.71, pp.103-132.  Epub Aug 22, 2022. ISSN 2007-1132.  https://doi.org/10.29298/rmcf.v13i71.1017.

An analysis was carried out to assess the effect, over a period of 10 years, of the application of the forestry selection method on diversity and structure in a temperate forest of the mountain range of the state of Durango, Mexico. Twelve Permanent Forest and Soil Research Sites (PFS and SRS) were compared and remeasured. The comparative analysis was performed using the Shannon-Wiener diversity index; the Importance Value index ―estimated by density, basal area, and species frequency at the sampling sites―, and three structure indexes for determining the species mixture, spatial distribution, and dominance of woodland. The Shannon-Wiener index did not exhibit significant statistical changes between the assessment periods when the Hutcheson t test was applied; the analysis showed that relative percentage values of abundance, dominance, and frequency, and the significance value index remained the same; structure indexes were not significantly modified in the 10-year interval after forest extraction; therefore, it was concluded that the forestry treatment applied does not modify the diversity or structure components of the tree stratum.

Keywords : Space distribution; dominance; tree stratum; Importance Value Index; mix of species; silvicultural treatment.

        · abstract in Spanish     · text in English | Spanish     · English ( pdf ) | Spanish ( pdf )