Resumo

HERRERIAS MIER, Laura Gabriela  e  NIETO DE PASCUAL POLA, Ma. Cecilia del Carmen. Structural and demographic characteristics of Juniperus deppeana Steud. in two locations in Tlaxcala State. Rev. mex. de cienc. forestales [online]. 2020, vol.11, n.61, pp.124-151.  Epub 20-Jan-2021. ISSN 2007-1132.  https://doi.org/10.29298/rmcf.v11i61.618.

Juniperus deppeana is a drought and fire tolerant species, able to grow under adverse soil conditions, and is therefore considered a potentially useful species for soil conservation. However, in Mexico, studies in this species are scarce, since it is not economically relevant for the forest industry. In Tlaxcala State there are abundant populations of this genus, so two localities, El Pardo (EP) and Acopinalco del Peñón (RAP), were chosen to analyze the structural and demographic characteristics of J. deppeana individuals, as well as to determine the influence of some abiotic factors. The Student's t-tests indicated significant mean values in height, maximum diameter, minimum diameter and crown cover. No significant relationship was found between the mensuration variables and the orientation or slope of the plots. The relationship between DBH and the crown cover was significant. The survival curve for both localities had a type III pattern. Statistical analysis indicates that size structure differs between sampling sites. Furthermore, the behavior of J. deppeana populations shows a high loss of young individuals, which threatens its natural regeneration. Although individuals from the site with forest management have more favorable dasometric characteristics, further long-term studies are required, under a more comprehensive approach, to determine the prospects for the conservation of this species.

Palavras-chave : Angular-linear correlation analysis; mensuration data; forest management; Silvicultural Development Method; Tlaxco Method; static life tables.

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